Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 3246 insertions, 0 deletions

diff --git a/intl/icu/source/tools/pkgdata/Makefile.in b/intl/icu/source/tools/pkgdata/Makefile.in
new file mode 100644
index 0000000000..4777998852
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/Makefile.in
@@ -0,0 +1,102 @@
+## Makefile.in for ICU - tools/pkgdata
+## Copyright (C) 2016 and later: Unicode, Inc. and others.
+## License & terms of use: http://www.unicode.org/copyright.html
+## Copyright (c) 1999-2011, International Business Machines Corporation and
+## others. All Rights Reserved.
+## Steven R. Loomis
+
+## Source directory information
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+
+top_builddir = ../..
+
+include $(top_builddir)/icudefs.mk
+
+## Build directory information
+subdir = tools/pkgdata
+
+TARGET_STUB_NAME = pkgdata
+
+SECTION = 1
+
+MAN_FILES = $(TARGET_STUB_NAME).$(SECTION)
+
+## Extra files to remove for 'make clean'
+CLEANFILES = *~ $(DEPS) $(MAN_FILES)
+
+ifneq ($(PKGDATA_DEFS),)
+DEFS += $(PKGDATA_DEFS)
+endif
+
+## Target information
+TARGET = $(BINDIR)/$(TARGET_STUB_NAME)$(EXEEXT)
+
+CPPFLAGS += -I$(srcdir) -I$(top_srcdir)/common -I$(srcdir)/../toolutil
+DEFS += -DUDATA_SO_SUFFIX=\".$(SO)\" -DSTATIC_O=\"$(STATIC_O)\"
+LIBS = $(LIBICUTOOLUTIL) $(LIBICUI18N) $(LIBICUUC) $(DEFAULT_LIBS) $(LIB_M)
+
+SOURCES = $(shell cat $(srcdir)/sources.txt)
+OBJECTS = $(patsubst %.cpp,%.o,$(patsubst %.c,%.o, $(SOURCES)))
+
+DEPS = $(OBJECTS:.o=.d)
+
+## List of phony targets
+.PHONY : all all-local install install-local clean clean-local	\
+distclean distclean-local dist dist-local check check-local install-man
+
+## Clear suffix list
+.SUFFIXES :
+
+## List of standard targets
+all: all-local
+install: install-local
+clean: clean-local
+distclean : distclean-local
+dist: dist-local
+check: all check-local
+
+all-local: $(TARGET) $(MAN_FILES)
+
+install-local: all-local install-man
+	$(MKINSTALLDIRS) $(DESTDIR)$(bindir)
+	$(INSTALL) $(TARGET) $(DESTDIR)$(bindir)
+
+install-man: $(MAN_FILES)
+	$(MKINSTALLDIRS) $(DESTDIR)$(mandir)/man$(SECTION)
+	$(INSTALL_DATA) $? $(DESTDIR)$(mandir)/man$(SECTION)
+
+
+dist-local:
+
+clean-local:
+	test -z "$(CLEANFILES)" || $(RMV) $(CLEANFILES)
+	$(RMV) $(TARGET) $(OBJECTS)
+
+distclean-local: clean-local
+	$(RMV) Makefile
+
+check-local: all-local
+
+Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status
+	cd $(top_builddir) \
+	 && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
+
+$(TARGET) : $(OBJECTS)
+	$(LINK.cc) $(OUTOPT)$@ $^ $(LIBS)
+	$(POST_BUILD_STEP)
+
+
+%.$(SECTION): $(srcdir)/%.$(SECTION).in
+	cd $(top_builddir) \
+	 && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status
+
+
+ifeq (,$(MAKECMDGOALS))
+-include $(DEPS)
+else
+ifneq ($(patsubst %clean,,$(MAKECMDGOALS)),)
+-include $(DEPS)
+endif
+endif
+
diff --git a/intl/icu/source/tools/pkgdata/pkgdata.1.in b/intl/icu/source/tools/pkgdata/pkgdata.1.in
new file mode 100644
index 0000000000..cee92cab94
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/pkgdata.1.in
@@ -0,0 +1,260 @@
+.\" Hey, Emacs! This is -*-nroff-*- you know...
+.\"
+.\" pkgdata.1: manual page for the pkgdata utility
+.\"
+.\" Copyright (C) 2016 and later: Unicode, Inc. and others.
+.\" License & terms of use: http://www.unicode.org/copyright.html
+.\" Copyright (C) 2000-2009 IBM, Inc. and others.
+.\"
+.\" Manual page by Yves Arrouye <yves@realnames.com>.
+.\" Modified by Michael Ow <mow@us.ibm.com>.
+.\"
+.TH PKGDATA 1 "6 February 2009" "ICU MANPAGE" "ICU @VERSION@ Manual"
+.SH NAME
+.B pkgdata
+\- package data for use by ICU
+.SH SYNOPSIS
+.B pkgdata
+[
+.BR "\-h\fP, \fB\-?\fP, \fB\-\-help"
+]
+[
+.BI "\-v\fP, \fB\-\-verbose"
+]
+[
+.BR "\-c\fP, \fB\-\-copyright"
+|
+.BI "\-C\fP, \fB\-\-comment" " comment"
+]
+[
+.BI "\-m\fP, \fB\-\-mode" " mode"
+]
+.BI "\-p\fP, \fB\-\-name" " name"
+.BI "\-O\fP, \fB\-\-bldopt" " options"
+[
+.BI "\-e\fP, \fB\-\-entrypoint" " name"
+]
+[
+.BI "\-r\fP, \fB\-\-revision" " version"
+]
+[
+.BI "\-F\fP, \fB\-\-rebuild"
+]
+[
+.BI "\-I\fP, \fB\-\-install"
+]
+[
+.BI "\-s\fP, \fB\-\-sourcedir" " source"
+]
+[
+.BI "\-d\fP, \fB\-\-destdir" " destination"
+]
+[
+.BI "\-T\fP, \fB\-\-tempdir" " directory"
+]
+[
+.IR file " .\|.\|."
+]
+.SH DESCRIPTION
+.B pkgdata
+takes a set of data files and packages them for use by ICU or
+applications that use ICU. The typical reason to package files using
+.B pkgdata
+is to make their distribution easier and their loading by ICU faster
+and less consuming of limited system resources such as file
+descriptors.
+Packaged data also allow applications to be distributed with fewer
+resource files, or even with none at all if they link against the
+packaged data directly.
+.PP
+.B pkgdata
+supports a few different methods of packaging data that serve
+different purposes.
+.PP
+The default packaging
+.I mode
+is
+.BR common ,
+or
+.BR archive .
+In this mode, the different data files are bundled together as an
+architecture-dependent file that can later be memory mapped for use by
+ICU. Data packaged using this mode will be looked up under the ICU
+data directory. Such packaging is easy to use for applications resource
+bundles, for example, as long as the application can install the
+packaged file in the ICU data directory.
+.PP
+Another packaging mode is the
+.BR dll ,
+or
+.BR library ,
+mode, where the data files are compiled into a shared library. ICU
+used to be able to dynamically load these shared libraries, but as of
+ICU 2.0, such support has been removed. This mode is still useful for
+two main purposes: to build ICU itself, as the ICU data is packaged as
+a shared library by default; and to build resource bundles that are
+linked to the application that uses them. Such resource bundles can
+then be placed anywhere where the system's dynamic linker will be
+looking for shared libraries, instead of being forced to live inside
+the ICU data directory.
+.PP
+The
+.BR static
+packaging mode is similar to the shared library one except that it
+produces a static library.
+.\" Note that many platforms are not able to
+.\" dynamically load symbols from static object files, so for this reason
+.\" .BR udata_setAppData() 
+.\" must be called
+.\" to install this data. As a convenience, pkgdata will build a C source file
+.\" and a header file. Given a data package named
+.\" .IR name, in the output 
+.\" directory will be created
+.\" .IR name .c
+.\" and
+.\" .IR name .h with the single
+.\" function
+.\" .BR "udata_install_\fcIname\fB(UErrorCode *err)" ,
+.\" where
+.\" .I cname
+.\" is
+.\" .I name
+.\" turned into a valid C identifier.
+.\" The application need to call this function once. The error code returned
+.\" is that of
+.\" .BR udata_setAppData() .
+.\" .PP
+.\" Data pakackaged in a library, whether shared or static, 
+.\" Subsequently, the application can access this data by passing
+.\" .I name for the
+.\" .I path 
+.\" rgument to functions such as
+.\" .BR Bures_open() .
+.PP
+Finally,
+.B pkgdata
+supports a
+.B files
+mode which simply copies the data files instead of packaging
+them as a single file or library. This mode is mainly intended to
+provide support for building ICU before it is packaged as separate
+small packages for distribution with operating systems such as Debian
+GNU/Linux for example. Please refer to the packaging documentation in
+the ICU source distribution for further information on the use of this
+mode.
+.PP
+.B pkgdata
+builds, packages, installs, or cleans the appropriate data based on the options given
+without the need to call GNU
+.BR make
+anymore.
+.SH OPTIONS
+.TP
+.BR "\-h\fP, \fB\-?\fP, \fB\-\-help"
+Print help about usage and exit.
+.TP
+.BR "\-v\fP, \fB\-\-verbose"
+Display extra informative messages during execution.
+.TP
+.BR "\-c\fP, \fB\-\-copyright"
+Include a copyright notice in the binary data.
+.TP
+.BI "\-C\fP, \fB\-\-comment" " comment"
+Includes the specified
+.I comment
+in the resulting data instead of the ICU copyright notice. 
+.TP
+.BI "\-m\fP, \fB\-\-mode" " mode"
+Set the packaging
+.I mode
+to be used by 
+.BR pkgdata .
+The different modes and their meaning are explained in the
+.B DESCRIPTION
+section above. The valid mode names are
+.BR common
+(or
+.BR archive ),
+.BR dll
+(or
+.BR library ),
+and
+.BR files .
+.TP
+.BI "\-O\fP, \fB\-\-bldopt" " options"
+Specify options for the builder. The builder is used internally by
+.B pkgdata
+to generate the correct packaged file. Such options include, but are
+not limited to, setting variables used by
+.BR make (1)
+during the build of the packaged file. Note: If 
+.BR icu-config 
+is available, then this option is not needed.
+.TP
+.BI "\-p\fP, \fB\-\-name" " name"
+Set the packaged file name to
+.IR name .
+This name is also used as the default entry point name after having
+been turned into a valid C identifier.
+.TP
+.BI "\-e\fP, \fB\-\-entrypoint" " name"
+Set the data entry point (used for linking against the data in a
+shared library form) to
+.IR name .
+The default entry point name is the name set by the
+.BI "\-n\fP, \fB\-\-name"
+option.
+.TP
+.BI "\-r\fP, \fB\-\-revision" " version"
+Enable versioning of the shared library produced in
+.BR dll ,
+or
+.BR library ,
+mode. The version number has the format
+.I major\fP.\fIminor\fP.\fIpatchlevel
+and all parts except for
+.I major
+are optional. If only
+.I major
+is supplied then the version is
+assumed to be
+.IR major .0
+for versioning purposes.
+.TP
+.BI "\-F\fP, \fB\-\-rebuild"
+Force the rebuilding of all data and their repackaging.
+.TP
+.BI "\-I\fP, \fB\-\-install"
+Install the packaged file (or all the files in the
+.B files
+mode). If the variable
+.B DESTDIR
+is set it will be used for installation.
+.TP
+.BI "\-s\fP, \fB\-\-sourcedir" " source"
+Set the source directory to
+.IR source .
+The default source directory is the current directory.
+.TP
+.BI "\-d\fP, \fB\-\-destdir" " destination"
+Set the destination directory to
+.IR destination .
+The default destination directory is the current directory.
+.TP
+.BI "\-T\fP, \fB\-\-tempdir" " directory"
+Set the directory used to generate temporary files to
+.IR directory .
+The default temporary directory is the same as the destination
+directory
+as set by the
+.BI "\-d\fP, \fB\-\-destdir"
+option.
+.SH AUTHORS
+Steven Loomis
+.br
+Yves Arrouye
+.SH VERSION
+@VERSION@
+.SH COPYRIGHT
+Copyright (C) 2000-2009 IBM, Inc. and others.
+
diff --git a/intl/icu/source/tools/pkgdata/pkgdata.cpp b/intl/icu/source/tools/pkgdata/pkgdata.cpp
new file mode 100644
index 0000000000..c2ac112f6e
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/pkgdata.cpp
@@ -0,0 +1,2293 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/******************************************************************************
+ *   Copyright (C) 2000-2016, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ *******************************************************************************
+ *   file name:  pkgdata.cpp
+ *   encoding:   ANSI X3.4 (1968)
+ *   tab size:   8 (not used)
+ *   indentation:4
+ *
+ *   created on: 2000may15
+ *   created by: Steven \u24C7 Loomis
+ *
+ *   This program packages the ICU data into different forms
+ *   (DLL, common data, etc.)
+ */
+
+// Defines _XOPEN_SOURCE for access to POSIX functions.
+// Must be before any other #includes.
+#include "uposixdefs.h"
+
+#include "unicode/utypes.h"
+
+#include "unicode/putil.h"
+#include "putilimp.h"
+
+#if U_HAVE_POPEN
+#if (U_PF_MINGW <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN) && defined(__STRICT_ANSI__)
+/* popen/pclose aren't defined in strict ANSI on Cygwin and MinGW */
+#undef __STRICT_ANSI__
+#endif
+#endif
+
+#include "cmemory.h"
+#include "cstring.h"
+#include "filestrm.h"
+#include "toolutil.h"
+#include "unicode/uclean.h"
+#include "unewdata.h"
+#include "uoptions.h"
+#include "package.h"
+#include "pkg_icu.h"
+#include "pkg_genc.h"
+#include "pkg_gencmn.h"
+#include "flagparser.h"
+#include "filetools.h"
+#include "charstr.h"
+#include "uassert.h"
+
+#if U_HAVE_POPEN
+# include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+U_CDECL_BEGIN
+#include "pkgtypes.h"
+U_CDECL_END
+
+#if U_HAVE_POPEN
+
+using icu::LocalPointerBase;
+
+U_DEFINE_LOCAL_OPEN_POINTER(LocalPipeFilePointer, FILE, pclose);
+
+#endif
+
+using icu::LocalMemory;
+
+static void loadLists(UPKGOptions *o, UErrorCode *status);
+
+static int32_t pkg_executeOptions(UPKGOptions *o);
+
+#ifdef WINDOWS_WITH_MSVC
+static int32_t pkg_createWindowsDLL(const char mode, const char *gencFilePath, UPKGOptions *o);
+#endif
+static int32_t pkg_createSymLinks(const char *targetDir, UBool specialHandling=false);
+static int32_t pkg_installLibrary(const char *installDir, const char *dir, UBool noVersion);
+static int32_t pkg_installFileMode(const char *installDir, const char *srcDir, const char *fileListName);
+static int32_t pkg_installCommonMode(const char *installDir, const char *fileName);
+
+#ifdef BUILD_DATA_WITHOUT_ASSEMBLY
+static int32_t pkg_createWithoutAssemblyCode(UPKGOptions *o, const char *targetDir, const char mode);
+#endif
+
+#ifdef CAN_WRITE_OBJ_CODE
+static void pkg_createOptMatchArch(char *optMatchArch);
+static void pkg_destroyOptMatchArch(char *optMatchArch);
+#endif
+
+static int32_t pkg_createWithAssemblyCode(const char *targetDir, const char mode, const char *gencFilePath);
+static int32_t pkg_generateLibraryFile(const char *targetDir, const char mode, const char *objectFile, char *command = nullptr, UBool specialHandling=false);
+static int32_t pkg_archiveLibrary(const char *targetDir, const char *version, UBool reverseExt);
+static void createFileNames(UPKGOptions *o, const char mode, const char *version_major, const char *version, const char *libName, const UBool reverseExt, UBool noVersion);
+static int32_t initializePkgDataFlags(UPKGOptions *o);
+
+static int32_t pkg_getPkgDataPath(UBool verbose, UOption *option);
+static int runCommand(const char* command, UBool specialHandling=false);
+
+#define IN_COMMON_MODE(mode) (mode == 'a' || mode == 'c')
+#define IN_DLL_MODE(mode)    (mode == 'd' || mode == 'l')
+#define IN_STATIC_MODE(mode) (mode == 's')
+#define IN_FILES_MODE(mode)  (mode == 'f')
+
+enum {
+    NAME,
+    BLDOPT,
+    MODE,
+    HELP,
+    HELP_QUESTION_MARK,
+    VERBOSE,
+    COPYRIGHT,
+    COMMENT,
+    DESTDIR,
+    REBUILD,
+    TEMPDIR,
+    INSTALL,
+    SOURCEDIR,
+    ENTRYPOINT,
+    REVISION,
+    FORCE_PREFIX,
+    LIBNAME,
+    QUIET,
+    WITHOUT_ASSEMBLY,
+    PDS_BUILD,
+    WIN_UWP_BUILD,
+    WIN_DLL_ARCH,
+    WIN_DYNAMICBASE
+};
+
+/* This sets the modes that are available */
+static struct {
+    const char *name, *alt_name;
+    const char *desc;
+} modes[] = {
+        { "files", 0,           "Uses raw data files (no effect). Installation copies all files to the target location." },
+#if U_PLATFORM_HAS_WIN32_API
+        { "dll",    "library",  "Generates one common data file and one shared library, <package>.dll"},
+        { "common", "archive",  "Generates just the common file, <package>.dat"},
+        { "static", "static",   "Generates one statically linked library, " LIB_PREFIX "<package>" UDATA_LIB_SUFFIX }
+#else
+#ifdef UDATA_SO_SUFFIX
+        { "dll",    "library",  "Generates one shared library, <package>" UDATA_SO_SUFFIX },
+#endif
+        { "common", "archive",  "Generates one common data file, <package>.dat" },
+        { "static", "static",   "Generates one statically linked library, " LIB_PREFIX "<package>" UDATA_LIB_SUFFIX }
+#endif
+};
+
+static UOption options[]={
+    /*00*/    UOPTION_DEF( "name",    'p', UOPT_REQUIRES_ARG),
+    /*01*/    UOPTION_DEF( "bldopt",  'O', UOPT_REQUIRES_ARG), /* on Win32 it is release or debug */
+    /*02*/    UOPTION_DEF( "mode",    'm', UOPT_REQUIRES_ARG),
+    /*03*/    UOPTION_HELP_H,                                   /* -h */
+    /*04*/    UOPTION_HELP_QUESTION_MARK,                       /* -? */
+    /*05*/    UOPTION_VERBOSE,                                  /* -v */
+    /*06*/    UOPTION_COPYRIGHT,                                /* -c */
+    /*07*/    UOPTION_DEF( "comment", 'C', UOPT_REQUIRES_ARG),
+    /*08*/    UOPTION_DESTDIR,                                  /* -d */
+    /*11*/    UOPTION_DEF( "rebuild", 'F', UOPT_NO_ARG),
+    /*12*/    UOPTION_DEF( "tempdir", 'T', UOPT_REQUIRES_ARG),
+    /*13*/    UOPTION_DEF( "install", 'I', UOPT_REQUIRES_ARG),
+    /*14*/    UOPTION_SOURCEDIR ,
+    /*15*/    UOPTION_DEF( "entrypoint", 'e', UOPT_REQUIRES_ARG),
+    /*16*/    UOPTION_DEF( "revision", 'r', UOPT_REQUIRES_ARG),
+    /*17*/    UOPTION_DEF( "force-prefix", 'f', UOPT_NO_ARG),
+    /*18*/    UOPTION_DEF( "libname", 'L', UOPT_REQUIRES_ARG),
+    /*19*/    UOPTION_DEF( "quiet", 'q', UOPT_NO_ARG),
+    /*20*/    UOPTION_DEF( "without-assembly", 'w', UOPT_NO_ARG),
+    /*21*/    UOPTION_DEF("zos-pds-build", 'z', UOPT_NO_ARG),
+    /*22*/    UOPTION_DEF("windows-uwp-build", 'u', UOPT_NO_ARG),
+    /*23*/    UOPTION_DEF("windows-DLL-arch", 'a', UOPT_REQUIRES_ARG),
+    /*24*/    UOPTION_DEF("windows-dynamicbase", 'b', UOPT_NO_ARG),
+};
+
+/* This enum and the following char array should be kept in sync. */
+enum {
+    GENCCODE_ASSEMBLY_TYPE,
+    SO_EXT,
+    SOBJ_EXT,
+    A_EXT,
+    LIBPREFIX,
+    LIB_EXT_ORDER,
+    COMPILER,
+    LIBFLAGS,
+    GENLIB,
+    LDICUDTFLAGS,
+    LD_SONAME,
+    RPATH_FLAGS,
+    BIR_FLAGS,
+    AR,
+    ARFLAGS,
+    RANLIB,
+    INSTALL_CMD,
+    PKGDATA_FLAGS_SIZE
+};
+static const char* FLAG_NAMES[PKGDATA_FLAGS_SIZE] = {
+        "GENCCODE_ASSEMBLY_TYPE",
+        "SO",
+        "SOBJ",
+        "A",
+        "LIBPREFIX",
+        "LIB_EXT_ORDER",
+        "COMPILE",
+        "LIBFLAGS",
+        "GENLIB",
+        "LDICUDTFLAGS",
+        "LD_SONAME",
+        "RPATH_FLAGS",
+        "BIR_LDFLAGS",
+        "AR",
+        "ARFLAGS",
+        "RANLIB",
+        "INSTALL_CMD"
+};
+static char **pkgDataFlags = nullptr;
+
+enum {
+    LIB_FILE,
+    LIB_FILE_VERSION_MAJOR,
+    LIB_FILE_VERSION,
+    LIB_FILE_VERSION_TMP,
+#if U_PLATFORM == U_PF_CYGWIN
+    LIB_FILE_CYGWIN,
+    LIB_FILE_CYGWIN_VERSION,
+#elif U_PLATFORM == U_PF_MINGW
+    LIB_FILE_MINGW,
+#elif U_PLATFORM == U_PF_OS390
+    LIB_FILE_OS390BATCH_MAJOR,
+    LIB_FILE_OS390BATCH_VERSION,
+#endif
+    LIB_FILENAMES_SIZE
+};
+static char libFileNames[LIB_FILENAMES_SIZE][256];
+
+static UPKGOptions  *pkg_checkFlag(UPKGOptions *o);
+
+const char options_help[][320]={
+    "Set the data name",
+#ifdef U_MAKE_IS_NMAKE
+    "The directory where the ICU is located (e.g. <ICUROOT> which contains the bin directory)",
+#else
+    "Specify options for the builder.",
+#endif
+    "Specify the mode of building (see below; default: common)",
+    "This usage text",
+    "This usage text",
+    "Make the output verbose",
+    "Use the standard ICU copyright",
+    "Use a custom comment (instead of the copyright)",
+    "Specify the destination directory for files",
+    "Force rebuilding of all data",
+    "Specify temporary dir (default: output dir)",
+    "Install the data (specify target)",
+    "Specify a custom source directory",
+    "Specify a custom entrypoint name (default: short name)",
+    "Specify a version when packaging in dll or static mode",
+    "Add package to all file names if not present",
+    "Library name to build (if different than package name)",
+    "Quiet mode. (e.g. Do not output a readme file for static libraries)",
+    "Build the data without assembly code",
+    "Build PDS dataset (zOS build only)",
+    "Build for Universal Windows Platform (Windows build only)",
+    "Specify the DLL machine architecture for LINK.exe (Windows build only)",
+    "Ignored. Enable DYNAMICBASE on the DLL. This is now the default. (Windows build only)",
+};
+
+const char  *progname = "PKGDATA";
+
+int
+main(int argc, char* argv[]) {
+    int result = 0;
+    /* FileStream  *out; */
+    UPKGOptions  o;
+    CharList    *tail;
+    UBool        needsHelp = false;
+    UErrorCode   status = U_ZERO_ERROR;
+    /* char         tmp[1024]; */
+    uint32_t i;
+    int32_t n;
+
+    U_MAIN_INIT_ARGS(argc, argv);
+
+    progname = argv[0];
+
+    options[MODE].value = "common";
+
+    /* read command line options */
+    argc=u_parseArgs(argc, argv, UPRV_LENGTHOF(options), options);
+
+    /* error handling, printing usage message */
+    /* I've decided to simply print an error and quit. This tool has too
+    many options to just display them all of the time. */
+
+    if(options[HELP].doesOccur || options[HELP_QUESTION_MARK].doesOccur) {
+        needsHelp = true;
+    }
+    else {
+        if(!needsHelp && argc<0) {
+            fprintf(stderr,
+                "%s: error in command line argument \"%s\"\n",
+                progname,
+                argv[-argc]);
+            fprintf(stderr, "Run '%s --help' for help.\n", progname);
+            return 1;
+        }
+
+
+#if !defined(WINDOWS_WITH_MSVC) || defined(USING_CYGWIN)
+        if(!options[BLDOPT].doesOccur && uprv_strcmp(options[MODE].value, "common") != 0) {
+          if (pkg_getPkgDataPath(options[VERBOSE].doesOccur, &options[BLDOPT]) != 0) {
+                fprintf(stderr, " required parameter is missing: -O is required for static and shared builds.\n");
+                fprintf(stderr, "Run '%s --help' for help.\n", progname);
+                return 1;
+            }
+        }
+#else
+        if(options[BLDOPT].doesOccur) {
+            fprintf(stdout, "Warning: You are using the -O option which is not needed for MSVC build on Windows.\n");
+        }
+#endif
+
+        if(!options[NAME].doesOccur) /* -O we already have - don't report it. */
+        {
+            fprintf(stderr, " required parameter -p is missing \n");
+            fprintf(stderr, "Run '%s --help' for help.\n", progname);
+            return 1;
+        }
+
+        if(argc == 1) {
+            fprintf(stderr,
+                "No input files specified.\n"
+                "Run '%s --help' for help.\n", progname);
+            return 1;
+        }
+    }   /* end !needsHelp */
+
+    if(argc<0 || needsHelp  ) {
+        fprintf(stderr,
+            "usage: %s [-options] [-] [packageFile] \n"
+            "\tProduce packaged ICU data from the given list(s) of files.\n"
+            "\t'-' by itself means to read from stdin.\n"
+            "\tpackageFile is a text file containing the list of files to package.\n",
+            progname);
+
+        fprintf(stderr, "\n options:\n");
+        for(i=0;i<UPRV_LENGTHOF(options);i++) {
+            fprintf(stderr, "%-5s -%c %s%-10s  %s\n",
+                (i<1?"[REQ]":""),
+                options[i].shortName,
+                options[i].longName ? "or --" : "     ",
+                options[i].longName ? options[i].longName : "",
+                options_help[i]);
+        }
+
+        fprintf(stderr, "modes: (-m option)\n");
+        for(i=0;i<UPRV_LENGTHOF(modes);i++) {
+            fprintf(stderr, "   %-9s ", modes[i].name);
+            if (modes[i].alt_name) {
+                fprintf(stderr, "/ %-9s", modes[i].alt_name);
+            } else {
+                fprintf(stderr, "           ");
+            }
+            fprintf(stderr, "  %s\n", modes[i].desc);
+        }
+        return 1;
+    }
+
+    /* OK, fill in the options struct */
+    uprv_memset(&o, 0, sizeof(o));
+
+    o.mode      = options[MODE].value;
+    o.version   = options[REVISION].doesOccur ? options[REVISION].value : 0;
+
+    o.shortName = options[NAME].value;
+    {
+        int32_t len = (int32_t)uprv_strlen(o.shortName);
+        char *csname, *cp;
+        const char *sp;
+
+        cp = csname = (char *) uprv_malloc((len + 1 + 1) * sizeof(*o.cShortName));
+        if (*(sp = o.shortName)) {
+            *cp++ = isalpha(*sp) ? * sp : '_';
+            for (++sp; *sp; ++sp) {
+                *cp++ = isalnum(*sp) ? *sp : '_';
+            }
+        }
+        *cp = 0;
+
+        o.cShortName = csname;
+    }
+
+    if(options[LIBNAME].doesOccur) { /* get libname from shortname, or explicit -L parameter */
+      o.libName = options[LIBNAME].value;
+    } else {
+      o.libName = o.shortName;
+    }
+
+    if(options[QUIET].doesOccur) {
+      o.quiet = true;
+    } else {
+      o.quiet = false;
+    }
+
+    if(options[PDS_BUILD].doesOccur) {
+#if U_PLATFORM == U_PF_OS390
+      o.pdsbuild = true;
+#else
+      o.pdsbuild = false;
+      fprintf(stdout, "Warning: You are using the -z option which only works on z/OS.\n");
+
+#endif
+    } else {
+      o.pdsbuild = false;
+    }
+
+    o.verbose   = options[VERBOSE].doesOccur;
+
+
+#if !defined(WINDOWS_WITH_MSVC) || defined(USING_CYGWIN) /* on UNIX, we'll just include the file... */
+    if (options[BLDOPT].doesOccur) {
+        o.options   = options[BLDOPT].value;
+    } else {
+        o.options = nullptr;
+    }
+#endif
+    if(options[COPYRIGHT].doesOccur) {
+        o.comment = U_COPYRIGHT_STRING;
+    } else if (options[COMMENT].doesOccur) {
+        o.comment = options[COMMENT].value;
+    }
+
+    if( options[DESTDIR].doesOccur ) {
+        o.targetDir = options[DESTDIR].value;
+    } else {
+        o.targetDir = ".";  /* cwd */
+    }
+
+    o.rebuild   = options[REBUILD].doesOccur;
+
+    if( options[TEMPDIR].doesOccur ) {
+        o.tmpDir    = options[TEMPDIR].value;
+    } else {
+        o.tmpDir    = o.targetDir;
+    }
+
+    if( options[INSTALL].doesOccur ) {
+        o.install  = options[INSTALL].value;
+    } else {
+        o.install = nullptr;
+    }
+
+    if( options[SOURCEDIR].doesOccur ) {
+        o.srcDir   = options[SOURCEDIR].value;
+    } else {
+        o.srcDir   = ".";
+    }
+
+    if( options[ENTRYPOINT].doesOccur ) {
+        o.entryName = options[ENTRYPOINT].value;
+    } else {
+        o.entryName = o.cShortName;
+    }
+
+    o.withoutAssembly = false;
+    if (options[WITHOUT_ASSEMBLY].doesOccur) {
+#ifndef BUILD_DATA_WITHOUT_ASSEMBLY
+        fprintf(stdout, "Warning: You are using the option to build without assembly code which is not supported on this platform.\n");
+        fprintf(stdout, "Warning: This option will be ignored.\n");
+#else
+        o.withoutAssembly = true;
+#endif
+    }
+
+    if (options[WIN_DYNAMICBASE].doesOccur) {
+        fprintf(stdout, "Note: Ignoring option -b (windows-dynamicbase).\n");
+    }
+
+    /* OK options are set up. Now the file lists. */
+    tail = nullptr;
+    for( n=1; n<argc; n++) {
+        o.fileListFiles = pkg_appendToList(o.fileListFiles, &tail, uprv_strdup(argv[n]));
+    }
+
+    /* load the files */
+    loadLists(&o, &status);
+    if( U_FAILURE(status) ) {
+        fprintf(stderr, "error loading input file lists: %s\n", u_errorName(status));
+        return 2;
+    }
+
+    result = pkg_executeOptions(&o);
+
+    if (pkgDataFlags != nullptr) {
+        for (n = 0; n < PKGDATA_FLAGS_SIZE; n++) {
+            if (pkgDataFlags[n] != nullptr) {
+                uprv_free(pkgDataFlags[n]);
+            }
+        }
+        uprv_free(pkgDataFlags);
+    }
+
+    if (o.cShortName != nullptr) {
+        uprv_free((char *)o.cShortName);
+    }
+    if (o.fileListFiles != nullptr) {
+        pkg_deleteList(o.fileListFiles);
+    }
+    if (o.filePaths != nullptr) {
+        pkg_deleteList(o.filePaths);
+    }
+    if (o.files != nullptr) {
+        pkg_deleteList(o.files);
+    }
+    return result;
+}
+
+static int runCommand(const char* command, UBool specialHandling) {
+    char *cmd = nullptr;
+    char cmdBuffer[SMALL_BUFFER_MAX_SIZE];
+    int32_t len = static_cast<int32_t>(strlen(command));
+
+    if (len == 0) {
+        return 0;
+    }
+
+    if (!specialHandling) {
+#if defined(USING_CYGWIN) || U_PLATFORM == U_PF_MINGW || U_PLATFORM == U_PF_OS400
+        int32_t buff_len;
+        if ((len + BUFFER_PADDING_SIZE) >= SMALL_BUFFER_MAX_SIZE) {
+            cmd = (char *)uprv_malloc(len + BUFFER_PADDING_SIZE);
+            buff_len = len + BUFFER_PADDING_SIZE;
+        } else {
+            cmd = cmdBuffer;
+            buff_len = SMALL_BUFFER_MAX_SIZE;
+        }
+#if defined(USING_CYGWIN) || U_PLATFORM == U_PF_MINGW
+        snprintf(cmd, buff_len, "bash -c \"%s\"", command);
+
+#elif U_PLATFORM == U_PF_OS400
+        snprintf(cmd, buff_len "QSH CMD('%s')", command);
+#endif
+#else
+        goto normal_command_mode;
+#endif
+    } else {
+#if !(defined(USING_CYGWIN) || U_PLATFORM == U_PF_MINGW || U_PLATFORM == U_PF_OS400)
+normal_command_mode:
+#endif
+        cmd = (char *)command;
+    }
+
+    printf("pkgdata: %s\n", cmd);
+    int result = system(cmd);
+    if (result != 0) {
+        fprintf(stderr, "-- return status = %d\n", result);
+        result = 1; // system() result code is platform specific.
+    }
+
+    if (cmd != cmdBuffer && cmd != command) {
+        uprv_free(cmd);
+    }
+
+    return result;
+}
+
+#define LN_CMD "ln -s"
+#define RM_CMD "rm -f"
+
+static int32_t pkg_executeOptions(UPKGOptions *o) {
+    int32_t result = 0;
+
+    const char mode = o->mode[0];
+    char targetDir[SMALL_BUFFER_MAX_SIZE] = "";
+    char tmpDir[SMALL_BUFFER_MAX_SIZE] = "";
+    char datFileName[SMALL_BUFFER_MAX_SIZE] = "";
+    char datFileNamePath[LARGE_BUFFER_MAX_SIZE] = "";
+    char checkLibFile[LARGE_BUFFER_MAX_SIZE] = "";
+
+    initializePkgDataFlags(o);
+
+    if (IN_FILES_MODE(mode)) {
+        /* Copy the raw data to the installation directory. */
+        if (o->install != nullptr) {
+            uprv_strcpy(targetDir, o->install);
+            if (o->shortName != nullptr) {
+                uprv_strcat(targetDir, PKGDATA_FILE_SEP_STRING);
+                uprv_strcat(targetDir, o->shortName);
+            }
+            
+            if(o->verbose) {
+              fprintf(stdout, "# Install: Files mode, copying files to %s..\n", targetDir);
+            }
+            result = pkg_installFileMode(targetDir, o->srcDir, o->fileListFiles->str);
+        }
+        return result;
+    } else /* if (IN_COMMON_MODE(mode) || IN_DLL_MODE(mode) || IN_STATIC_MODE(mode)) */ {
+        UBool noVersion = false;
+
+        uprv_strcpy(targetDir, o->targetDir);
+        uprv_strcat(targetDir, PKGDATA_FILE_SEP_STRING);
+
+        uprv_strcpy(tmpDir, o->tmpDir);
+        uprv_strcat(tmpDir, PKGDATA_FILE_SEP_STRING);
+
+        uprv_strcpy(datFileNamePath, tmpDir);
+
+        uprv_strcpy(datFileName, o->shortName);
+        uprv_strcat(datFileName, UDATA_CMN_SUFFIX);
+
+        uprv_strcat(datFileNamePath, datFileName);
+
+        if(o->verbose) {
+          fprintf(stdout, "# Writing package file %s ..\n", datFileNamePath);
+        }
+        result = writePackageDatFile(datFileNamePath, o->comment, o->srcDir, o->fileListFiles->str, nullptr, U_CHARSET_FAMILY ? 'e' :  U_IS_BIG_ENDIAN ? 'b' : 'l');
+        if (result != 0) {
+            fprintf(stderr,"Error writing package dat file.\n");
+            return result;
+        }
+
+        if (IN_COMMON_MODE(mode)) {
+            char targetFileNamePath[LARGE_BUFFER_MAX_SIZE] = "";
+
+            uprv_strcpy(targetFileNamePath, targetDir);
+            uprv_strcat(targetFileNamePath, datFileName);
+
+            /* Move the dat file created to the target directory. */
+            if (uprv_strcmp(datFileNamePath, targetFileNamePath) != 0) {
+                if (T_FileStream_file_exists(targetFileNamePath)) {
+                    if ((result = remove(targetFileNamePath)) != 0) {
+                        fprintf(stderr, "Unable to remove old dat file: %s\n",
+                                targetFileNamePath);
+                        return result;
+                    }
+                }
+
+                result = rename(datFileNamePath, targetFileNamePath);
+
+                if (o->verbose) {
+                    fprintf(stdout, "# Moving package file to %s ..\n",
+                            targetFileNamePath);
+                }
+                if (result != 0) {
+                    fprintf(
+                            stderr,
+                            "Unable to move dat file (%s) to target location (%s).\n",
+                            datFileNamePath, targetFileNamePath);
+                    return result;
+                }
+            }
+
+            if (o->install != nullptr) {
+                result = pkg_installCommonMode(o->install, targetFileNamePath);
+            }
+
+            return result;
+        } else /* if (IN_STATIC_MODE(mode) || IN_DLL_MODE(mode)) */ {
+            char gencFilePath[SMALL_BUFFER_MAX_SIZE] = "";
+            char version_major[10] = "";
+            UBool reverseExt = false;
+
+#if !defined(WINDOWS_WITH_MSVC) || defined(USING_CYGWIN)
+            /* Get the version major number. */
+            if (o->version != nullptr) {
+                for (uint32_t i = 0;i < sizeof(version_major);i++) {
+                    if (o->version[i] == '.') {
+                        version_major[i] = 0;
+                        break;
+                    }
+                    version_major[i] = o->version[i];
+                }
+            } else {
+                noVersion = true;
+                if (IN_DLL_MODE(mode)) {
+                    fprintf(stdout, "Warning: Providing a revision number with the -r option is recommended when packaging data in the current mode.\n");
+                }
+            }
+
+#if U_PLATFORM != U_PF_OS400
+            /* Certain platforms have different library extension ordering. (e.g. libicudata.##.so vs libicudata.so.##)
+             * reverseExt is false if the suffix should be the version number.
+             */
+            if (pkgDataFlags[LIB_EXT_ORDER][uprv_strlen(pkgDataFlags[LIB_EXT_ORDER])-1] == pkgDataFlags[SO_EXT][uprv_strlen(pkgDataFlags[SO_EXT])-1]) {
+                reverseExt = true;
+            }
+#endif
+            /* Using the base libName and version number, generate the library file names. */
+            createFileNames(o, mode, version_major, o->version == nullptr ? "" : o->version, o->libName, reverseExt, noVersion);
+
+            if ((o->version!=nullptr || IN_STATIC_MODE(mode)) && o->rebuild == false && o->pdsbuild == false) {
+                /* Check to see if a previous built data library file exists and check if it is the latest. */
+                snprintf(checkLibFile, sizeof(checkLibFile), "%s%s", targetDir, libFileNames[LIB_FILE_VERSION]);
+                if (T_FileStream_file_exists(checkLibFile)) {
+                    if (isFileModTimeLater(checkLibFile, o->srcDir, true) && isFileModTimeLater(checkLibFile, o->options)) {
+                        if (o->install != nullptr) {
+                          if(o->verbose) {
+                            fprintf(stdout, "# Installing already-built library into %s\n", o->install);
+                          }
+                          result = pkg_installLibrary(o->install, targetDir, noVersion);
+                        } else {
+                          if(o->verbose) {
+                            printf("# Not rebuilding %s - up to date.\n", checkLibFile);
+                          }
+                        }
+                        return result;
+                    } else if (o->verbose && (o->install!=nullptr)) {
+                      fprintf(stdout, "# Not installing up-to-date library %s into %s\n", checkLibFile, o->install);
+                    }
+                } else if(o->verbose && (o->install!=nullptr)) {
+                  fprintf(stdout, "# Not installing missing %s into %s\n", checkLibFile, o->install);
+                }
+            }
+
+            if (pkg_checkFlag(o) == nullptr) {
+                /* Error occurred. */
+                return result;
+            }
+#endif
+
+            if (!o->withoutAssembly && pkgDataFlags[GENCCODE_ASSEMBLY_TYPE][0] != 0) {
+                const char* genccodeAssembly = pkgDataFlags[GENCCODE_ASSEMBLY_TYPE];
+
+                if(o->verbose) {
+                  fprintf(stdout, "# Generating assembly code %s of type %s ..\n", gencFilePath, genccodeAssembly);
+                }
+                
+                /* Offset genccodeAssembly by 3 because "-a " */
+                if (genccodeAssembly &&
+                    (uprv_strlen(genccodeAssembly)>3) &&
+                    checkAssemblyHeaderName(genccodeAssembly+3)) {
+                    writeAssemblyCode(
+                        datFileNamePath,
+                        o->tmpDir,
+                        o->entryName,
+                        nullptr,
+                        gencFilePath,
+                        sizeof(gencFilePath));
+
+                    result = pkg_createWithAssemblyCode(targetDir, mode, gencFilePath);
+                    if (result != 0) {
+                        fprintf(stderr, "Error generating assembly code for data.\n");
+                        return result;
+                    } else if (IN_STATIC_MODE(mode)) {
+                      if(o->install != nullptr) {
+                        if(o->verbose) {
+                          fprintf(stdout, "# Installing static library into %s\n", o->install);
+                        }
+                        result = pkg_installLibrary(o->install, targetDir, noVersion);
+                      }
+                      return result;
+                    }
+                } else {
+                    fprintf(stderr,"Assembly type \"%s\" is unknown.\n", genccodeAssembly);
+                    return -1;
+                }
+            } else {
+                if(o->verbose) {
+                  fprintf(stdout, "# Writing object code to %s ..\n", gencFilePath);
+                }
+                if (o->withoutAssembly) {
+#ifdef BUILD_DATA_WITHOUT_ASSEMBLY
+                    result = pkg_createWithoutAssemblyCode(o, targetDir, mode);
+#else
+                    /* This error should not occur. */
+                    fprintf(stderr, "Error- BUILD_DATA_WITHOUT_ASSEMBLY is not defined. Internal error.\n");
+#endif
+                } else {
+#ifdef CAN_WRITE_OBJ_CODE
+                    /* Try to detect the arch type, use nullptr if unsuccessful */
+                    char optMatchArch[10] = { 0 };
+                    pkg_createOptMatchArch(optMatchArch);
+                    writeObjectCode(
+                        datFileNamePath,
+                        o->tmpDir,
+                        o->entryName,
+                        (optMatchArch[0] == 0 ? nullptr : optMatchArch),
+                        nullptr,
+                        gencFilePath,
+                        sizeof(gencFilePath),
+                        true);
+                    pkg_destroyOptMatchArch(optMatchArch);
+#if U_PLATFORM_IS_LINUX_BASED
+                    result = pkg_generateLibraryFile(targetDir, mode, gencFilePath);
+#elif defined(WINDOWS_WITH_MSVC)
+                    result = pkg_createWindowsDLL(mode, gencFilePath, o);
+#endif
+#elif defined(BUILD_DATA_WITHOUT_ASSEMBLY)
+                    result = pkg_createWithoutAssemblyCode(o, targetDir, mode);
+#else
+                    fprintf(stderr, "Error- neither CAN_WRITE_OBJ_CODE nor BUILD_DATA_WITHOUT_ASSEMBLY are defined. Internal error.\n");
+                    return 1;
+#endif
+                }
+
+                if (result != 0) {
+                    fprintf(stderr, "Error generating package data.\n");
+                    return result;
+                }
+            }
+#if !U_PLATFORM_USES_ONLY_WIN32_API
+            if(!IN_STATIC_MODE(mode)) {
+                /* Certain platforms uses archive library. (e.g. AIX) */
+                if(o->verbose) {
+                  fprintf(stdout, "# Creating data archive library file ..\n");
+                }
+                result = pkg_archiveLibrary(targetDir, o->version, reverseExt);
+                if (result != 0) {
+                    fprintf(stderr, "Error creating data archive library file.\n");
+                   return result;
+                }
+#if U_PLATFORM != U_PF_OS400
+                if (!noVersion) {
+                    /* Create symbolic links for the final library file. */
+#if U_PLATFORM == U_PF_OS390
+                    result = pkg_createSymLinks(targetDir, o->pdsbuild);
+#else
+                    result = pkg_createSymLinks(targetDir, noVersion);
+#endif
+                    if (result != 0) {
+                        fprintf(stderr, "Error creating symbolic links of the data library file.\n");
+                        return result;
+                    }
+                }
+#endif
+            } /* !IN_STATIC_MODE */
+#endif
+
+#if !U_PLATFORM_USES_ONLY_WIN32_API
+            /* Install the libraries if option was set. */
+            if (o->install != nullptr) {
+                if(o->verbose) {
+                  fprintf(stdout, "# Installing library file to %s ..\n", o->install);
+                }
+                result = pkg_installLibrary(o->install, targetDir, noVersion);
+                if (result != 0) {
+                    fprintf(stderr, "Error installing the data library.\n");
+                    return result;
+                }
+            }
+#endif
+        }
+    }
+    return result;
+}
+
+/* Initialize the pkgDataFlags with the option file given. */
+static int32_t initializePkgDataFlags(UPKGOptions *o) {
+    UErrorCode status = U_ZERO_ERROR;
+    int32_t result = 0;
+    int32_t currentBufferSize = SMALL_BUFFER_MAX_SIZE;
+    int32_t tmpResult = 0;
+
+    /* Initialize pkgdataFlags */
+    pkgDataFlags = (char**)uprv_malloc(sizeof(char*) * PKGDATA_FLAGS_SIZE);
+
+    /* If we run out of space, allocate more */
+#if !defined(WINDOWS_WITH_MSVC) || defined(USING_CYGWIN)
+    do {
+#endif
+        if (pkgDataFlags != nullptr) {
+            for (int32_t i = 0; i < PKGDATA_FLAGS_SIZE; i++) {
+                pkgDataFlags[i] = (char*)uprv_malloc(sizeof(char) * currentBufferSize);
+                if (pkgDataFlags[i] != nullptr) {
+                    pkgDataFlags[i][0] = 0;
+                } else {
+                    fprintf(stderr,"Error allocating memory for pkgDataFlags.\n");
+                    /* If an error occurs, ensure that the rest of the array is nullptr */
+                    for (int32_t n = i + 1; n < PKGDATA_FLAGS_SIZE; n++) {
+                        pkgDataFlags[n] = nullptr;
+                    }
+                    return -1;
+                }
+            }
+        } else {
+            fprintf(stderr,"Error allocating memory for pkgDataFlags.\n");
+            return -1;
+        }
+
+        if (o->options == nullptr) {
+            return result;
+        }
+
+#if !defined(WINDOWS_WITH_MSVC) || defined(USING_CYGWIN)
+        /* Read in options file. */
+        if(o->verbose) {
+          fprintf(stdout, "# Reading options file %s\n", o->options);
+        }
+        status = U_ZERO_ERROR;
+        tmpResult = parseFlagsFile(o->options, pkgDataFlags, currentBufferSize, FLAG_NAMES, (int32_t)PKGDATA_FLAGS_SIZE, &status);
+        if (status == U_BUFFER_OVERFLOW_ERROR) {
+            for (int32_t i = 0; i < PKGDATA_FLAGS_SIZE; i++) {
+                if (pkgDataFlags[i]) {
+                    uprv_free(pkgDataFlags[i]);
+                    pkgDataFlags[i] = nullptr;
+                }
+            }
+            currentBufferSize = tmpResult;
+        } else if (U_FAILURE(status)) {
+            fprintf(stderr,"Unable to open or read \"%s\" option file. status = %s\n", o->options, u_errorName(status));
+            return -1;
+        }
+#endif
+        if(o->verbose) {
+            fprintf(stdout, "# pkgDataFlags=\n");
+            for(int32_t i=0;i<PKGDATA_FLAGS_SIZE;i++) {
+                fprintf(stdout, "  [%d] %s:  %s\n", i, FLAG_NAMES[i], pkgDataFlags[i]);
+            }
+            fprintf(stdout, "\n");
+        }
+#if !defined(WINDOWS_WITH_MSVC) || defined(USING_CYGWIN)
+    } while (status == U_BUFFER_OVERFLOW_ERROR);
+#endif
+
+    return result;
+}
+
+
+/*
+ * Given the base libName and version numbers, generate the library file names and store it in libFileNames.
+ * Depending on the configuration, the library name may either end with version number or shared object suffix.
+ */
+static void createFileNames(UPKGOptions *o, const char mode, const char *version_major, const char *version, const char *libName, UBool reverseExt, UBool noVersion) {
+    const char* FILE_EXTENSION_SEP = uprv_strlen(pkgDataFlags[SO_EXT]) == 0 ? "" : ".";
+    const char* FILE_SUFFIX = pkgDataFlags[LIB_EXT_ORDER][0] == '.' ? "." : "";
+
+#if U_PLATFORM == U_PF_MINGW
+        /* MinGW does not need the library prefix when building in dll mode. */
+        if (IN_DLL_MODE(mode)) {
+            snprintf(libFileNames[LIB_FILE], sizeof(libFileNames[LIB_FILE]), "%s", libName);
+        } else {
+            snprintf(libFileNames[LIB_FILE], sizeof(libFileNames[LIB_FILE]), "%s%s%s",
+                    (strstr(libName, "icudt") ? "lib" : ""),
+                    pkgDataFlags[LIBPREFIX],
+                    libName);
+        }
+#else
+        snprintf(libFileNames[LIB_FILE], sizeof(libFileNames[LIB_FILE]), "%s%s",
+                pkgDataFlags[LIBPREFIX],
+                libName);
+#endif
+
+        if(o->verbose) {
+          fprintf(stdout, "# libFileName[LIB_FILE] = %s\n", libFileNames[LIB_FILE]);
+        }
+
+#if U_PLATFORM == U_PF_MINGW
+        // Name the import library lib*.dll.a
+        snprintf(libFileNames[LIB_FILE_MINGW], sizeof(libFileNames[LIB_FILE_MINGW]), "lib%s.dll.a", libName);
+#elif U_PLATFORM == U_PF_CYGWIN
+        snprintf(libFileNames[LIB_FILE_CYGWIN], sizeof(libFileNames[LIB_FILE_CYGWIN]), "cyg%s%s%s",
+                libName,
+                FILE_EXTENSION_SEP,
+                pkgDataFlags[SO_EXT]);
+        snprintf(libFileNames[LIB_FILE_CYGWIN_VERSION], sizeof(libFileNames[LIB_FILE_CYGWIN_VERSION]), "cyg%s%s%s%s",
+                libName,
+                version_major,
+                FILE_EXTENSION_SEP,
+                pkgDataFlags[SO_EXT]);
+
+        uprv_strcat(pkgDataFlags[SO_EXT], ".");
+        uprv_strcat(pkgDataFlags[SO_EXT], pkgDataFlags[A_EXT]);
+#elif U_PLATFORM == U_PF_OS400 || defined(_AIX)
+        snprintf(libFileNames[LIB_FILE_VERSION_TMP], sizeof(libFileNames[LIB_FILE_VERSION_TMP]), "%s%s%s",
+                libFileNames[LIB_FILE],
+                FILE_EXTENSION_SEP,
+                pkgDataFlags[SOBJ_EXT]);
+#elif U_PLATFORM == U_PF_OS390
+        snprintf(libFileNames[LIB_FILE_VERSION_TMP], sizeof(libFileNames[LIB_FILE_VERSION_TMP]), "%s%s%s%s%s",
+                    libFileNames[LIB_FILE],
+                    pkgDataFlags[LIB_EXT_ORDER][0] == '.' ? "." : "",
+                    reverseExt ? version : pkgDataFlags[SOBJ_EXT],
+                    FILE_EXTENSION_SEP,
+                    reverseExt ? pkgDataFlags[SOBJ_EXT] : version);
+
+        snprintf(libFileNames[LIB_FILE_OS390BATCH_VERSION], sizeof(libFileNames[LIB_FILE_OS390BATCH_VERSION]), "%s%s.x",
+                    libFileNames[LIB_FILE],
+                    version);
+        snprintf(libFileNames[LIB_FILE_OS390BATCH_MAJOR], sizeof(libFileNames[LIB_FILE_OS390BATCH_MAJOR]), "%s%s.x",
+                    libFileNames[LIB_FILE],
+                    version_major);
+#else
+        if (noVersion && !reverseExt) {
+            snprintf(libFileNames[LIB_FILE_VERSION_TMP], sizeof(libFileNames[LIB_FILE_VERSION_TMP]), "%s%s%s",
+                    libFileNames[LIB_FILE],
+                    FILE_SUFFIX,
+                    pkgDataFlags[SOBJ_EXT]);
+        } else {
+            snprintf(libFileNames[LIB_FILE_VERSION_TMP], sizeof(libFileNames[LIB_FILE_VERSION_TMP]), "%s%s%s%s%s",
+                    libFileNames[LIB_FILE],
+                    FILE_SUFFIX,
+                    reverseExt ? version : pkgDataFlags[SOBJ_EXT],
+                    FILE_EXTENSION_SEP,
+                    reverseExt ? pkgDataFlags[SOBJ_EXT] : version);
+        }
+#endif
+        if (noVersion && !reverseExt) {
+            snprintf(libFileNames[LIB_FILE_VERSION_MAJOR], sizeof(libFileNames[LIB_FILE_VERSION_TMP]), "%s%s%s",
+                    libFileNames[LIB_FILE],
+                    FILE_SUFFIX,
+                    pkgDataFlags[SO_EXT]);
+
+            snprintf(libFileNames[LIB_FILE_VERSION], sizeof(libFileNames[LIB_FILE_VERSION]), "%s%s%s",
+                    libFileNames[LIB_FILE],
+                    FILE_SUFFIX,
+                    pkgDataFlags[SO_EXT]);
+        } else {
+            snprintf(libFileNames[LIB_FILE_VERSION_MAJOR], sizeof(libFileNames[LIB_FILE_VERSION_MAJOR]), "%s%s%s%s%s",
+                    libFileNames[LIB_FILE],
+                    FILE_SUFFIX,
+                    reverseExt ? version_major : pkgDataFlags[SO_EXT],
+                    FILE_EXTENSION_SEP,
+                    reverseExt ? pkgDataFlags[SO_EXT] : version_major);
+
+            snprintf(libFileNames[LIB_FILE_VERSION], sizeof(libFileNames[LIB_FILE_VERSION]), "%s%s%s%s%s",
+                    libFileNames[LIB_FILE],
+                    FILE_SUFFIX,
+                    reverseExt ? version : pkgDataFlags[SO_EXT],
+                    FILE_EXTENSION_SEP,
+                    reverseExt ? pkgDataFlags[SO_EXT] : version);
+        }
+
+        if(o->verbose) {
+          fprintf(stdout, "# libFileName[LIB_FILE_VERSION] = %s\n", libFileNames[LIB_FILE_VERSION]);
+        }
+
+#if U_PF_MINGW <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
+        /* Cygwin and MinGW only deals with the version major number. */
+        uprv_strcpy(libFileNames[LIB_FILE_VERSION_TMP], libFileNames[LIB_FILE_VERSION_MAJOR]);
+#endif
+
+        if(IN_STATIC_MODE(mode)) {
+            snprintf(libFileNames[LIB_FILE_VERSION], sizeof(libFileNames[LIB_FILE_VERSION]), "%s.%s", libFileNames[LIB_FILE], pkgDataFlags[A_EXT]);
+            libFileNames[LIB_FILE_VERSION_MAJOR][0]=0;
+            if(o->verbose) {
+              fprintf(stdout, "# libFileName[LIB_FILE_VERSION] = %s  (static)\n", libFileNames[LIB_FILE_VERSION]);
+            }
+        }
+}
+
+/* Create the symbolic links for the final library file. */
+static int32_t pkg_createSymLinks(const char *targetDir, UBool specialHandling) {
+    int32_t result = 0;
+    char cmd[LARGE_BUFFER_MAX_SIZE];
+    char name1[SMALL_BUFFER_MAX_SIZE]; /* symlink file name */
+    char name2[SMALL_BUFFER_MAX_SIZE]; /* file name to symlink */
+    const char* FILE_EXTENSION_SEP = uprv_strlen(pkgDataFlags[SO_EXT]) == 0 ? "" : ".";
+
+#if U_PLATFORM != U_PF_CYGWIN
+    /* No symbolic link to make. */
+    if (uprv_strlen(libFileNames[LIB_FILE_VERSION]) == 0 || uprv_strlen(libFileNames[LIB_FILE_VERSION_MAJOR]) == 0 ||
+        uprv_strcmp(libFileNames[LIB_FILE_VERSION], libFileNames[LIB_FILE_VERSION_MAJOR]) == 0) {
+        return result;
+    }
+    
+    snprintf(cmd, sizeof(cmd), "cd %s && %s %s && %s %s %s",
+            targetDir,
+            RM_CMD,
+            libFileNames[LIB_FILE_VERSION_MAJOR],
+            LN_CMD,
+            libFileNames[LIB_FILE_VERSION],
+            libFileNames[LIB_FILE_VERSION_MAJOR]);
+    result = runCommand(cmd);
+    if (result != 0) {
+        fprintf(stderr, "Error creating symbolic links. Failed command: %s\n", cmd);
+        return result;
+    }
+#endif
+
+    if (specialHandling) {
+#if U_PLATFORM == U_PF_CYGWIN
+        snprintf(name1, sizeof(name1), "%s", libFileNames[LIB_FILE_CYGWIN]);
+        snprintf(name2, sizeof(name2), "%s", libFileNames[LIB_FILE_CYGWIN_VERSION]);
+#elif U_PLATFORM == U_PF_OS390
+        /* Create the symbolic links for the import data */
+        /* Use the cmd buffer to store path to import data file to check its existence */
+        snprintf(cmd, sizeof(cmd), "%s/%s", targetDir, libFileNames[LIB_FILE_OS390BATCH_VERSION]);
+        if (T_FileStream_file_exists(cmd)) {
+            snprintf(cmd, sizeof(cmd), "cd %s && %s %s && %s %s %s",
+                    targetDir,
+                    RM_CMD,
+                    libFileNames[LIB_FILE_OS390BATCH_MAJOR],
+                    LN_CMD,
+                    libFileNames[LIB_FILE_OS390BATCH_VERSION],
+                    libFileNames[LIB_FILE_OS390BATCH_MAJOR]);
+            result = runCommand(cmd);
+            if (result != 0) {
+                fprintf(stderr, "Error creating symbolic links. Failed command: %s\n", cmd);
+                return result;
+            }
+
+            snprintf(cmd, sizeof(cmd), "cd %s && %s %s.x && %s %s %s.x",
+                    targetDir,
+                    RM_CMD,
+                    libFileNames[LIB_FILE],
+                    LN_CMD,
+                    libFileNames[LIB_FILE_OS390BATCH_VERSION],
+                    libFileNames[LIB_FILE]);
+            result = runCommand(cmd);
+            if (result != 0) {
+                fprintf(stderr, "Error creating symbolic links. Failed command: %s\n", cmd);
+                return result;
+            }
+        }
+
+        /* Needs to be set here because special handling skips it */
+        snprintf(name1, sizeof(name1), "%s%s%s", libFileNames[LIB_FILE], FILE_EXTENSION_SEP, pkgDataFlags[SO_EXT]);
+        snprintf(name2, sizeof(name2), "%s", libFileNames[LIB_FILE_VERSION]);
+#else
+        goto normal_symlink_mode;
+#endif
+    } else {
+#if U_PLATFORM != U_PF_CYGWIN
+normal_symlink_mode:
+#endif
+        snprintf(name1, sizeof(name1), "%s%s%s", libFileNames[LIB_FILE], FILE_EXTENSION_SEP, pkgDataFlags[SO_EXT]);
+        snprintf(name2, sizeof(name2), "%s", libFileNames[LIB_FILE_VERSION]);
+    }
+
+    snprintf(cmd, sizeof(cmd), "cd %s && %s %s && %s %s %s",
+            targetDir,
+            RM_CMD,
+            name1,
+            LN_CMD,
+            name2,
+            name1);
+
+     result = runCommand(cmd);
+
+    return result;
+}
+
+static int32_t pkg_installLibrary(const char *installDir, const char *targetDir, UBool noVersion) {
+    int32_t result = 0;
+    char cmd[SMALL_BUFFER_MAX_SIZE];
+
+    auto ret = snprintf(cmd,
+            sizeof(cmd),
+            "cd %s && %s %s %s%s%s",
+            targetDir,
+            pkgDataFlags[INSTALL_CMD],
+            libFileNames[LIB_FILE_VERSION],
+            installDir, PKGDATA_FILE_SEP_STRING, libFileNames[LIB_FILE_VERSION]);
+    (void)ret;
+    U_ASSERT(0 <= ret && ret < SMALL_BUFFER_MAX_SIZE);
+
+    result = runCommand(cmd);
+
+    if (result != 0) {
+        fprintf(stderr, "Error installing library. Failed command: %s\n", cmd);
+        return result;
+    }
+
+#ifdef CYGWINMSVC
+    snprintf(cmd, sizeof(cmd), "cd %s && %s %s.lib %s",
+            targetDir,
+            pkgDataFlags[INSTALL_CMD],
+            libFileNames[LIB_FILE],
+            installDir
+            );
+    result = runCommand(cmd);
+
+    if (result != 0) {
+        fprintf(stderr, "Error installing library. Failed command: %s\n", cmd);
+        return result;
+    }
+#elif U_PLATFORM == U_PF_CYGWIN
+    snprintf(cmd, sizeof(cmd), "cd %s && %s %s %s",
+            targetDir,
+            pkgDataFlags[INSTALL_CMD],
+            libFileNames[LIB_FILE_CYGWIN_VERSION],
+            installDir
+            );
+    result = runCommand(cmd);
+
+    if (result != 0) {
+        fprintf(stderr, "Error installing library. Failed command: %s\n", cmd);
+        return result;
+    }
+
+#elif U_PLATFORM == U_PF_OS390
+    if (T_FileStream_file_exists(libFileNames[LIB_FILE_OS390BATCH_VERSION])) {
+        snprintf(cmd, sizeof(cmd), "%s %s %s",
+                pkgDataFlags[INSTALL_CMD],
+                libFileNames[LIB_FILE_OS390BATCH_VERSION],
+                installDir
+                );
+        result = runCommand(cmd);
+
+        if (result != 0) {
+            fprintf(stderr, "Error installing library. Failed command: %s\n", cmd);
+            return result;
+        }
+    }
+#endif
+
+    if (noVersion) {
+        return result;
+    } else {
+        return pkg_createSymLinks(installDir, true);
+    }
+}
+
+static int32_t pkg_installCommonMode(const char *installDir, const char *fileName) {
+    int32_t result = 0;
+    char cmd[SMALL_BUFFER_MAX_SIZE] = "";
+
+    if (!T_FileStream_file_exists(installDir)) {
+        UErrorCode status = U_ZERO_ERROR;
+
+        uprv_mkdir(installDir, &status);
+        if (U_FAILURE(status)) {
+            fprintf(stderr, "Error creating installation directory: %s\n", installDir);
+            return -1;
+        }
+    }
+#ifndef U_WINDOWS_WITH_MSVC
+    snprintf(cmd, sizeof(cmd), "%s %s %s", pkgDataFlags[INSTALL_CMD], fileName, installDir);
+#else
+    snprintf(cmd, sizeof(cmd), "%s %s %s %s", WIN_INSTALL_CMD, fileName, installDir, WIN_INSTALL_CMD_FLAGS);
+#endif
+
+    result = runCommand(cmd);
+    if (result != 0) {
+        fprintf(stderr, "Failed to install data file with command: %s\n", cmd);
+    }
+
+    return result;
+}
+
+#ifdef U_WINDOWS_MSVC
+/* Copy commands for installing the raw data files on Windows. */
+#define WIN_INSTALL_CMD "xcopy"
+#define WIN_INSTALL_CMD_FLAGS "/E /Y /K"
+#endif
+static int32_t pkg_installFileMode(const char *installDir, const char *srcDir, const char *fileListName) {
+    int32_t result = 0;
+    char cmd[SMALL_BUFFER_MAX_SIZE] = "";
+
+    if (!T_FileStream_file_exists(installDir)) {
+        UErrorCode status = U_ZERO_ERROR;
+
+        uprv_mkdir(installDir, &status);
+        if (U_FAILURE(status)) {
+            fprintf(stderr, "Error creating installation directory: %s\n", installDir);
+            return -1;
+        }
+    }
+#ifndef U_WINDOWS_WITH_MSVC
+    char buffer[SMALL_BUFFER_MAX_SIZE] = "";
+    int32_t bufferLength = 0;
+
+    FileStream *f = T_FileStream_open(fileListName, "r");
+    if (f != nullptr) {
+        for(;;) {
+            if (T_FileStream_readLine(f, buffer, SMALL_BUFFER_MAX_SIZE) != nullptr) {
+                bufferLength = static_cast<int32_t>(uprv_strlen(buffer));
+                /* Remove new line character. */
+                if (bufferLength > 0) {
+                    buffer[bufferLength-1] = 0;
+                }
+
+                auto ret = snprintf(cmd,
+                        sizeof(cmd),
+                        "%s %s%s%s %s%s%s",
+                        pkgDataFlags[INSTALL_CMD],
+                        srcDir, PKGDATA_FILE_SEP_STRING, buffer,
+                        installDir, PKGDATA_FILE_SEP_STRING, buffer);
+                (void)ret;
+                U_ASSERT(0 <= ret && ret < SMALL_BUFFER_MAX_SIZE);
+
+                result = runCommand(cmd);
+                if (result != 0) {
+                    fprintf(stderr, "Failed to install data file with command: %s\n", cmd);
+                    break;
+                }
+            } else {
+                if (!T_FileStream_eof(f)) {
+                    fprintf(stderr, "Failed to read line from file: %s\n", fileListName);
+                    result = -1;
+                }
+                break;
+            }
+        }
+        T_FileStream_close(f);
+    } else {
+        result = -1;
+        fprintf(stderr, "Unable to open list file: %s\n", fileListName);
+    }
+#else
+    snprintf(cmd, sizeof(cmd), "%s %s %s %s", WIN_INSTALL_CMD, srcDir, installDir, WIN_INSTALL_CMD_FLAGS);
+    result = runCommand(cmd);
+    if (result != 0) {
+        fprintf(stderr, "Failed to install data file with command: %s\n", cmd);
+    }
+#endif
+
+    return result;
+}
+
+/* Archiving of the library file may be needed depending on the platform and options given.
+ * If archiving is not needed, copy over the library file name.
+ */
+static int32_t pkg_archiveLibrary(const char *targetDir, const char *version, UBool reverseExt) {
+    int32_t result = 0;
+    char cmd[LARGE_BUFFER_MAX_SIZE];
+
+    /* If the shared object suffix and the final object suffix is different and the final object suffix and the
+     * archive file suffix is the same, then the final library needs to be archived.
+     */
+    if (uprv_strcmp(pkgDataFlags[SOBJ_EXT], pkgDataFlags[SO_EXT]) != 0 && uprv_strcmp(pkgDataFlags[A_EXT], pkgDataFlags[SO_EXT]) == 0) {
+        snprintf(libFileNames[LIB_FILE_VERSION], sizeof(libFileNames[LIB_FILE_VERSION]), "%s%s%s.%s",
+                libFileNames[LIB_FILE],
+                pkgDataFlags[LIB_EXT_ORDER][0] == '.' ? "." : "",
+                reverseExt ? version : pkgDataFlags[SO_EXT],
+                reverseExt ? pkgDataFlags[SO_EXT] : version);
+
+        snprintf(cmd, sizeof(cmd), "%s %s %s%s %s%s",
+                pkgDataFlags[AR],
+                pkgDataFlags[ARFLAGS],
+                targetDir,
+                libFileNames[LIB_FILE_VERSION],
+                targetDir,
+                libFileNames[LIB_FILE_VERSION_TMP]);
+
+        result = runCommand(cmd); 
+        if (result != 0) { 
+            fprintf(stderr, "Error creating archive library. Failed command: %s\n", cmd);
+            return result; 
+        } 
+        
+        snprintf(cmd, sizeof(cmd), "%s %s%s", 
+            pkgDataFlags[RANLIB], 
+            targetDir, 
+            libFileNames[LIB_FILE_VERSION]);
+        
+        result = runCommand(cmd); 
+        if (result != 0) {
+            fprintf(stderr, "Error creating archive library. Failed command: %s\n", cmd);
+            return result;
+        }
+
+        /* Remove unneeded library file. */
+        snprintf(cmd, sizeof(cmd), "%s %s%s",
+                RM_CMD,
+                targetDir,
+                libFileNames[LIB_FILE_VERSION_TMP]);
+
+        result = runCommand(cmd);
+        if (result != 0) {
+            fprintf(stderr, "Error creating archive library. Failed command: %s\n", cmd);
+            return result;
+        }
+
+    } else {
+        uprv_strcpy(libFileNames[LIB_FILE_VERSION], libFileNames[LIB_FILE_VERSION_TMP]);
+    }
+
+    return result;
+}
+
+/*
+ * Using the compiler information from the configuration file set by -O option, generate the library file.
+ * command may be given to allow for a larger buffer for cmd.
+ */
+static int32_t pkg_generateLibraryFile(const char *targetDir, const char mode, const char *objectFile, char *command, UBool specialHandling) {
+    int32_t result = 0;
+    char *cmd = nullptr;
+    UBool freeCmd = false;
+    int32_t length = 0;
+
+    (void)specialHandling;  // Suppress unused variable compiler warnings on platforms where all usage
+                            // of this parameter is #ifdefed out.
+
+    /* This is necessary because if packaging is done without assembly code, objectFile might be extremely large
+     * containing many object files and so the calling function should supply a command buffer that is large
+     * enough to handle this. Otherwise, use the default size.
+     */
+    if (command != nullptr) {
+        cmd = command;
+    }
+
+    if (IN_STATIC_MODE(mode)) {
+        if (cmd == nullptr) {
+            length = static_cast<int32_t>(uprv_strlen(pkgDataFlags[AR]) + uprv_strlen(pkgDataFlags[ARFLAGS]) + uprv_strlen(targetDir) +
+                     uprv_strlen(libFileNames[LIB_FILE_VERSION]) + uprv_strlen(objectFile) + uprv_strlen(pkgDataFlags[RANLIB]) + BUFFER_PADDING_SIZE);
+            if ((cmd = (char *)uprv_malloc(sizeof(char) * length)) == nullptr) {
+                fprintf(stderr, "Unable to allocate memory for command.\n");
+                return -1;
+            }
+            freeCmd = true;
+        }
+        sprintf(cmd, "%s %s %s%s %s",
+                pkgDataFlags[AR],
+                pkgDataFlags[ARFLAGS],
+                targetDir,
+                libFileNames[LIB_FILE_VERSION],
+                objectFile);
+
+        result = runCommand(cmd);
+        if (result == 0) {
+            sprintf(cmd, "%s %s%s", 
+                    pkgDataFlags[RANLIB], 
+                    targetDir, 
+                    libFileNames[LIB_FILE_VERSION]); 
+        
+            result = runCommand(cmd);
+        }
+    } else /* if (IN_DLL_MODE(mode)) */ {
+        if (cmd == nullptr) {
+            length = static_cast<int32_t>(uprv_strlen(pkgDataFlags[GENLIB]) + uprv_strlen(pkgDataFlags[LDICUDTFLAGS]) +
+                     ((uprv_strlen(targetDir) + uprv_strlen(libFileNames[LIB_FILE_VERSION_TMP])) * 2) +
+                     uprv_strlen(objectFile) + uprv_strlen(pkgDataFlags[LD_SONAME]) +
+                     uprv_strlen(pkgDataFlags[LD_SONAME][0] == 0 ? "" : libFileNames[LIB_FILE_VERSION_MAJOR]) +
+                     uprv_strlen(pkgDataFlags[RPATH_FLAGS]) + uprv_strlen(pkgDataFlags[BIR_FLAGS]) + BUFFER_PADDING_SIZE);
+#if U_PLATFORM == U_PF_CYGWIN
+            length += static_cast<int32_t>(uprv_strlen(targetDir) + uprv_strlen(libFileNames[LIB_FILE_CYGWIN_VERSION]));
+#elif U_PLATFORM == U_PF_MINGW
+            length += static_cast<int32_t>(uprv_strlen(targetDir) + uprv_strlen(libFileNames[LIB_FILE_MINGW]));
+#endif
+            if ((cmd = (char *)uprv_malloc(sizeof(char) * length)) == nullptr) {
+                fprintf(stderr, "Unable to allocate memory for command.\n");
+                return -1;
+            }
+            freeCmd = true;
+        }
+#if U_PLATFORM == U_PF_MINGW
+        sprintf(cmd, "%s%s%s %s -o %s%s %s %s%s %s %s",
+                pkgDataFlags[GENLIB],
+                targetDir,
+                libFileNames[LIB_FILE_MINGW],
+                pkgDataFlags[LDICUDTFLAGS],
+                targetDir,
+                libFileNames[LIB_FILE_VERSION_TMP],
+#elif U_PLATFORM == U_PF_CYGWIN
+        sprintf(cmd, "%s%s%s %s -o %s%s %s %s%s %s %s",
+                pkgDataFlags[GENLIB],
+                targetDir,
+                libFileNames[LIB_FILE_VERSION_TMP],
+                pkgDataFlags[LDICUDTFLAGS],
+                targetDir,
+                libFileNames[LIB_FILE_CYGWIN_VERSION],
+#elif U_PLATFORM == U_PF_AIX
+        sprintf(cmd, "%s %s%s;%s %s -o %s%s %s %s%s %s %s",
+                RM_CMD,
+                targetDir,
+                libFileNames[LIB_FILE_VERSION_TMP],
+                pkgDataFlags[GENLIB],
+                pkgDataFlags[LDICUDTFLAGS],
+                targetDir,
+                libFileNames[LIB_FILE_VERSION_TMP],
+#else
+        sprintf(cmd, "%s %s -o %s%s %s %s%s %s %s",
+                pkgDataFlags[GENLIB],
+                pkgDataFlags[LDICUDTFLAGS],
+                targetDir,
+                libFileNames[LIB_FILE_VERSION_TMP],
+#endif
+                objectFile,
+                pkgDataFlags[LD_SONAME],
+                pkgDataFlags[LD_SONAME][0] == 0 ? "" : libFileNames[LIB_FILE_VERSION_MAJOR],
+                pkgDataFlags[RPATH_FLAGS],
+                pkgDataFlags[BIR_FLAGS]);
+
+        /* Generate the library file. */
+        result = runCommand(cmd);
+
+#if U_PLATFORM == U_PF_OS390
+        char *env_tmp;
+        char PDS_LibName[512];
+        char PDS_Name[512];
+
+        PDS_Name[0] = 0;
+        PDS_LibName[0] = 0;
+        if (specialHandling && uprv_strcmp(libFileNames[LIB_FILE],"libicudata") == 0) {
+            if (env_tmp = getenv("ICU_PDS_NAME")) {
+                sprintf(PDS_Name, "%s%s",
+                        env_tmp,
+                        "DA");
+                strcat(PDS_Name, getenv("ICU_PDS_NAME_SUFFIX"));
+            } else if (env_tmp = getenv("PDS_NAME_PREFIX")) {
+                sprintf(PDS_Name, "%s%s",
+                        env_tmp,
+                        U_ICU_VERSION_SHORT "DA");
+            } else {
+                sprintf(PDS_Name, "%s%s",
+                        "IXMI",
+                        U_ICU_VERSION_SHORT "DA");
+            }
+        } else if (!specialHandling && uprv_strcmp(libFileNames[LIB_FILE],"libicudata_stub") == 0) {
+            if (env_tmp = getenv("ICU_PDS_NAME")) {
+                sprintf(PDS_Name, "%s%s",
+                        env_tmp,
+                        "D1");
+                strcat(PDS_Name, getenv("ICU_PDS_NAME_SUFFIX"));
+            } else if (env_tmp = getenv("PDS_NAME_PREFIX")) {
+                sprintf(PDS_Name, "%s%s",
+                        env_tmp,
+                        U_ICU_VERSION_SHORT "D1");
+            } else {
+                sprintf(PDS_Name, "%s%s",
+                        "IXMI",
+                        U_ICU_VERSION_SHORT "D1");
+            }
+        }
+
+        if (PDS_Name[0]) {
+            sprintf(PDS_LibName,"%s%s%s%s%s",
+                    "\"//'",
+                    getenv("LOADMOD"),
+                    "(",
+                    PDS_Name,
+                    ")'\"");
+            sprintf(cmd, "%s %s -o %s %s %s%s %s %s",
+                   pkgDataFlags[GENLIB],
+                   pkgDataFlags[LDICUDTFLAGS],
+                   PDS_LibName,
+                   objectFile,
+                   pkgDataFlags[LD_SONAME],
+                   pkgDataFlags[LD_SONAME][0] == 0 ? "" : libFileNames[LIB_FILE_VERSION_MAJOR],
+                   pkgDataFlags[RPATH_FLAGS],
+                   pkgDataFlags[BIR_FLAGS]);
+
+            result = runCommand(cmd);
+        }
+#endif
+    }
+
+    if (result != 0) {
+        fprintf(stderr, "Error generating library file. Failed command: %s\n", cmd);
+    }
+
+    if (freeCmd) {
+        uprv_free(cmd);
+    }
+
+    return result;
+}
+
+static int32_t pkg_createWithAssemblyCode(const char *targetDir, const char mode, const char *gencFilePath) {
+    char tempObjectFile[SMALL_BUFFER_MAX_SIZE] = "";
+    int32_t result = 0;
+    int32_t length = 0;
+
+    /* Remove the ending .s and replace it with .o for the new object file. */
+    uprv_strcpy(tempObjectFile, gencFilePath);
+    tempObjectFile[uprv_strlen(tempObjectFile)-1] = 'o';
+
+    length = static_cast<int32_t>(uprv_strlen(pkgDataFlags[COMPILER]) + uprv_strlen(pkgDataFlags[LIBFLAGS])
+             + uprv_strlen(tempObjectFile) + uprv_strlen(gencFilePath) + BUFFER_PADDING_SIZE);
+
+    LocalMemory<char> cmd((char *)uprv_malloc(sizeof(char) * length));
+    if (cmd.isNull()) {
+        return -1;
+    }
+
+    /* Generate the object file. */
+    snprintf(cmd.getAlias(), length, "%s %s -o %s %s",
+            pkgDataFlags[COMPILER],
+            pkgDataFlags[LIBFLAGS],
+            tempObjectFile,
+            gencFilePath);
+
+    result = runCommand(cmd.getAlias());
+
+    if (result != 0) {
+        fprintf(stderr, "Error creating with assembly code. Failed command: %s\n", cmd.getAlias());
+        return result;
+    }
+
+    return pkg_generateLibraryFile(targetDir, mode, tempObjectFile);
+}
+
+#ifdef BUILD_DATA_WITHOUT_ASSEMBLY
+/*
+ * Generation of the data library without assembly code needs to compile each data file
+ * individually and then link it all together.
+ * Note: Any update to the directory structure of the data needs to be reflected here.
+ */
+enum {
+    DATA_PREFIX_BRKITR,
+    DATA_PREFIX_COLL,
+    DATA_PREFIX_CURR,
+    DATA_PREFIX_LANG,
+    DATA_PREFIX_RBNF,
+    DATA_PREFIX_REGION,
+    DATA_PREFIX_TRANSLIT,
+    DATA_PREFIX_ZONE,
+    DATA_PREFIX_UNIT,
+    DATA_PREFIX_LENGTH
+};
+
+const static char DATA_PREFIX[DATA_PREFIX_LENGTH][10] = {
+        "brkitr",
+        "coll",
+        "curr",
+        "lang",
+        "rbnf",
+        "region",
+        "translit",
+        "zone",
+        "unit"
+};
+
+static int32_t pkg_createWithoutAssemblyCode(UPKGOptions *o, const char *targetDir, const char mode) {
+    int32_t result = 0;
+    CharList *list = o->filePaths;
+    CharList *listNames = o->files;
+    int32_t listSize = pkg_countCharList(list);
+    char *buffer;
+    char *cmd;
+    char gencmnFile[SMALL_BUFFER_MAX_SIZE] = "";
+    char tempObjectFile[SMALL_BUFFER_MAX_SIZE] = "";
+#ifdef USE_SINGLE_CCODE_FILE
+    char icudtAll[SMALL_BUFFER_MAX_SIZE] = "";
+    FileStream *icudtAllFile = nullptr;
+    
+    snprintf(icudtAll, sizeof(icudtAll), "%s%s%sall.c",
+            o->tmpDir,
+            PKGDATA_FILE_SEP_STRING, 
+            libFileNames[LIB_FILE]);
+    /* Remove previous icudtall.c file. */
+    if (T_FileStream_file_exists(icudtAll) && (result = remove(icudtAll)) != 0) {
+        fprintf(stderr, "Unable to remove old icudtall file: %s\n", icudtAll);
+        return result;
+    }
+
+    if((icudtAllFile = T_FileStream_open(icudtAll, "w"))==nullptr) {
+        fprintf(stderr, "Unable to write to icudtall file: %s\n", icudtAll);
+        return result;
+    }
+#endif
+
+    if (list == nullptr || listNames == nullptr) {
+        /* list and listNames should never be nullptr since we are looping through the CharList with
+         * the given size.
+         */
+        return -1;
+    }
+
+    if ((cmd = (char *)uprv_malloc((listSize + 2) * SMALL_BUFFER_MAX_SIZE)) == nullptr) {
+        fprintf(stderr, "Unable to allocate memory for cmd.\n");
+        return -1;
+    } else if ((buffer = (char *)uprv_malloc((listSize + 1) * SMALL_BUFFER_MAX_SIZE)) == nullptr) {
+        fprintf(stderr, "Unable to allocate memory for buffer.\n");
+        uprv_free(cmd);
+        return -1;
+    }
+
+    for (int32_t i = 0; i < (listSize + 1); i++) {
+        const char *file ;
+        const char *name;
+
+        if (i == 0) {
+            /* The first iteration calls the gencmn function and initializes the buffer. */
+            createCommonDataFile(o->tmpDir, o->shortName, o->entryName, nullptr, o->srcDir, o->comment, o->fileListFiles->str, 0, true, o->verbose, gencmnFile);
+            buffer[0] = 0;
+#ifdef USE_SINGLE_CCODE_FILE
+            uprv_strcpy(tempObjectFile, gencmnFile);
+            tempObjectFile[uprv_strlen(tempObjectFile) - 1] = 'o';
+            
+            sprintf(cmd, "%s %s -o %s %s",
+                        pkgDataFlags[COMPILER],
+                        pkgDataFlags[LIBFLAGS],
+                        tempObjectFile,
+                        gencmnFile);
+            
+            result = runCommand(cmd);
+            if (result != 0) {
+                break;
+            }
+            
+            sprintf(buffer, "%s",tempObjectFile);
+#endif
+        } else {
+            char newName[SMALL_BUFFER_MAX_SIZE];
+            char dataName[SMALL_BUFFER_MAX_SIZE];
+            char dataDirName[SMALL_BUFFER_MAX_SIZE];
+            const char *pSubstring;
+            file = list->str;
+            name = listNames->str;
+
+            newName[0] = dataName[0] = 0;
+            for (int32_t n = 0; n < DATA_PREFIX_LENGTH; n++) {
+                dataDirName[0] = 0;
+                sprintf(dataDirName, "%s%s", DATA_PREFIX[n], PKGDATA_FILE_SEP_STRING);
+                /* If the name contains a prefix (indicating directory), alter the new name accordingly. */
+                pSubstring = uprv_strstr(name, dataDirName);
+                if (pSubstring != nullptr) {
+                    char newNameTmp[SMALL_BUFFER_MAX_SIZE] = "";
+                    const char *p = name + uprv_strlen(dataDirName);
+                    for (int32_t i = 0;;i++) {
+                        if (p[i] == '.') {
+                            newNameTmp[i] = '_';
+                            continue;
+                        }
+                        newNameTmp[i] = p[i];
+                        if (p[i] == 0) {
+                            break;
+                        }
+                    }
+                    auto ret = snprintf(newName,
+                            sizeof(newName),
+                            "%s_%s",
+                            DATA_PREFIX[n],
+                            newNameTmp);
+                    (void)ret;
+                    U_ASSERT(0 <= ret && ret < SMALL_BUFFER_MAX_SIZE);
+                    ret = snprintf(dataName,
+                            sizeof(dataName),
+                            "%s_%s",
+                            o->shortName,
+                            DATA_PREFIX[n]);
+                    (void)ret;
+                    U_ASSERT(0 <= ret && ret < SMALL_BUFFER_MAX_SIZE);
+                }
+                if (newName[0] != 0) {
+                    break;
+                }
+            }
+
+            if(o->verbose) {
+              printf("# Generating %s \n", gencmnFile);
+            }
+
+            writeCCode(
+                file,
+                o->tmpDir,
+                nullptr,
+                dataName[0] != 0 ? dataName : o->shortName,
+                newName[0] != 0 ? newName : nullptr,
+                gencmnFile,
+                sizeof(gencmnFile));
+
+#ifdef USE_SINGLE_CCODE_FILE
+            sprintf(cmd, "#include \"%s\"\n", gencmnFile);
+            T_FileStream_writeLine(icudtAllFile, cmd);
+            /* don't delete the file */
+#endif
+        }
+
+#ifndef USE_SINGLE_CCODE_FILE
+        uprv_strcpy(tempObjectFile, gencmnFile);
+        tempObjectFile[uprv_strlen(tempObjectFile) - 1] = 'o';
+        
+        sprintf(cmd, "%s %s -o %s %s",
+                    pkgDataFlags[COMPILER],
+                    pkgDataFlags[LIBFLAGS],
+                    tempObjectFile,
+                    gencmnFile);
+        result = runCommand(cmd);
+        if (result != 0) {
+            fprintf(stderr, "Error creating library without assembly code. Failed command: %s\n", cmd);
+            break;
+        }
+
+        uprv_strcat(buffer, " ");
+        uprv_strcat(buffer, tempObjectFile);
+
+#endif
+        
+        if (i > 0) {
+            list = list->next;
+            listNames = listNames->next;
+        }
+    }
+
+#ifdef USE_SINGLE_CCODE_FILE
+    T_FileStream_close(icudtAllFile);
+    uprv_strcpy(tempObjectFile, icudtAll);
+    tempObjectFile[uprv_strlen(tempObjectFile) - 1] = 'o';
+
+    sprintf(cmd, "%s %s -I. -o %s %s",
+        pkgDataFlags[COMPILER],
+        pkgDataFlags[LIBFLAGS],
+        tempObjectFile,
+        icudtAll);
+    
+    result = runCommand(cmd);
+    if (result == 0) {
+        uprv_strcat(buffer, " ");
+        uprv_strcat(buffer, tempObjectFile);
+    } else {
+        fprintf(stderr, "Error creating library without assembly code. Failed command: %s\n", cmd);
+    }
+#endif
+
+    if (result == 0) {
+        /* Generate the library file. */
+#if U_PLATFORM == U_PF_OS390
+        result = pkg_generateLibraryFile(targetDir, mode, buffer, cmd, (o->pdsbuild && IN_DLL_MODE(mode)));
+#else
+        result = pkg_generateLibraryFile(targetDir,mode, buffer, cmd);
+#endif
+    }
+
+    uprv_free(buffer);
+    uprv_free(cmd);
+
+    return result;
+}
+#endif
+
+#ifdef WINDOWS_WITH_MSVC
+#define LINK_CMD "link.exe /nologo /release /out:"
+#define LINK_FLAGS "/NXCOMPAT /DYNAMICBASE /DLL /NOENTRY /MANIFEST:NO /implib:"
+
+#define LINK_EXTRA_UWP_FLAGS "/APPCONTAINER "
+#define LINK_EXTRA_UWP_FLAGS_X86_ONLY "/SAFESEH "
+
+#define LINK_EXTRA_FLAGS_MACHINE "/MACHINE:"
+#define LIB_CMD "LIB.exe /nologo /out:"
+#define LIB_FILE "icudt.lib"
+#define LIB_EXT UDATA_LIB_SUFFIX
+#define DLL_EXT UDATA_SO_SUFFIX
+
+static int32_t pkg_createWindowsDLL(const char mode, const char *gencFilePath, UPKGOptions *o) {
+    int32_t result = 0;
+    char cmd[LARGE_BUFFER_MAX_SIZE];
+    if (IN_STATIC_MODE(mode)) {
+        char staticLibFilePath[SMALL_BUFFER_MAX_SIZE] = "";
+
+#ifdef CYGWINMSVC
+        snprintf(staticLibFilePath, sizeof(staticLibFilePath), "%s%s%s%s%s",
+                o->targetDir,
+                PKGDATA_FILE_SEP_STRING,
+                pkgDataFlags[LIBPREFIX],
+                o->libName,
+                LIB_EXT);
+#else
+        snprintf(staticLibFilePath, sizeof(staticLibFilePath), "%s%s%s%s%s",
+                o->targetDir,
+                PKGDATA_FILE_SEP_STRING,
+                (strstr(o->libName, "icudt") ? "s" : ""),
+                o->libName,
+                LIB_EXT);
+#endif
+
+        snprintf(cmd, sizeof(cmd), "%s\"%s\" \"%s\"",
+                LIB_CMD,
+                staticLibFilePath,
+                gencFilePath);
+    } else if (IN_DLL_MODE(mode)) {
+        char dllFilePath[SMALL_BUFFER_MAX_SIZE] = "";
+        char libFilePath[SMALL_BUFFER_MAX_SIZE] = "";
+        char resFilePath[SMALL_BUFFER_MAX_SIZE] = "";
+        char tmpResFilePath[SMALL_BUFFER_MAX_SIZE] = "";
+
+#ifdef CYGWINMSVC
+        uprv_strcpy(dllFilePath, o->targetDir);
+#else
+        uprv_strcpy(dllFilePath, o->srcDir);
+#endif
+        uprv_strcat(dllFilePath, PKGDATA_FILE_SEP_STRING);
+        uprv_strcpy(libFilePath, dllFilePath);
+
+#ifdef CYGWINMSVC
+        uprv_strcat(libFilePath, o->libName);
+        uprv_strcat(libFilePath, ".lib");
+        
+        uprv_strcat(dllFilePath, o->libName);
+        uprv_strcat(dllFilePath, o->version);
+#else
+        if (strstr(o->libName, "icudt")) {
+            uprv_strcat(libFilePath, LIB_FILE);
+        } else {
+            uprv_strcat(libFilePath, o->libName);
+            uprv_strcat(libFilePath, ".lib");
+        }
+        uprv_strcat(dllFilePath, o->entryName);
+#endif
+        uprv_strcat(dllFilePath, DLL_EXT);
+        
+        uprv_strcpy(tmpResFilePath, o->tmpDir);
+        uprv_strcat(tmpResFilePath, PKGDATA_FILE_SEP_STRING);
+        uprv_strcat(tmpResFilePath, ICUDATA_RES_FILE);
+
+        if (T_FileStream_file_exists(tmpResFilePath)) {
+            snprintf(resFilePath, sizeof(resFilePath), "\"%s\"", tmpResFilePath);
+        }
+
+        /* Check if dll file and lib file exists and that it is not newer than genc file. */
+        if (!o->rebuild && (T_FileStream_file_exists(dllFilePath) && isFileModTimeLater(dllFilePath, gencFilePath)) &&
+            (T_FileStream_file_exists(libFilePath) && isFileModTimeLater(libFilePath, gencFilePath))) {
+          if(o->verbose) {
+            printf("# Not rebuilding %s - up to date.\n", gencFilePath);
+          }
+          return 0;
+        }
+
+        char extraFlags[SMALL_BUFFER_MAX_SIZE] = "";
+#ifdef WINDOWS_WITH_MSVC
+        if (options[WIN_UWP_BUILD].doesOccur) {
+            uprv_strcat(extraFlags, LINK_EXTRA_UWP_FLAGS);
+
+            if (options[WIN_DLL_ARCH].doesOccur) {
+                if (uprv_strcmp(options[WIN_DLL_ARCH].value, "X86") == 0) {
+                    uprv_strcat(extraFlags, LINK_EXTRA_UWP_FLAGS_X86_ONLY);
+                }
+            }
+        }
+
+        if (options[WIN_DLL_ARCH].doesOccur) {
+            uprv_strcat(extraFlags, LINK_EXTRA_FLAGS_MACHINE);
+            uprv_strcat(extraFlags, options[WIN_DLL_ARCH].value);
+        }
+
+#endif
+        snprintf(cmd, sizeof(cmd), "%s\"%s\" %s %s\"%s\" \"%s\" %s",
+            LINK_CMD,
+            dllFilePath,
+            extraFlags,
+            LINK_FLAGS,
+            libFilePath,
+            gencFilePath,
+            resFilePath
+        );
+    }
+
+    result = runCommand(cmd, true);
+    if (result != 0) {
+        fprintf(stderr, "Error creating Windows DLL library. Failed command: %s\n", cmd);
+    }
+
+    return result;
+}
+#endif
+
+static UPKGOptions *pkg_checkFlag(UPKGOptions *o) {
+#if U_PLATFORM == U_PF_AIX
+    /* AIX needs a map file. */
+    char *flag = nullptr;
+    int32_t length = 0;
+    char tmpbuffer[SMALL_BUFFER_MAX_SIZE];
+    const char MAP_FILE_EXT[] = ".map";
+    FileStream *f = nullptr;
+    char mapFile[SMALL_BUFFER_MAX_SIZE] = "";
+    int32_t start = -1;
+    uint32_t count = 0;
+    const char rm_cmd[] = "rm -f all ;";
+
+    flag = pkgDataFlags[GENLIB];
+
+    /* This portion of the code removes 'rm -f all' in the GENLIB.
+     * Only occurs in AIX.
+     */
+    if (uprv_strstr(flag, rm_cmd) != nullptr) {
+        char *tmpGenlibFlagBuffer = nullptr;
+        int32_t i, offset;
+
+        length = static_cast<int32_t>(uprv_strlen(flag) + 1);
+        tmpGenlibFlagBuffer = (char *)uprv_malloc(length);
+        if (tmpGenlibFlagBuffer == nullptr) {
+            /* Memory allocation error */
+            fprintf(stderr,"Unable to allocate buffer of size: %d.\n", length);
+            return nullptr;
+        }
+
+        uprv_strcpy(tmpGenlibFlagBuffer, flag);
+
+        offset = static_cast<int32_t>(uprv_strlen(rm_cmd));
+
+        for (i = 0; i < (length - offset); i++) {
+            flag[i] = tmpGenlibFlagBuffer[offset + i];
+        }
+
+        /* Zero terminate the string */
+        flag[i] = 0;
+
+        uprv_free(tmpGenlibFlagBuffer);
+    }
+
+    flag = pkgDataFlags[BIR_FLAGS];
+    length = static_cast<int32_t>(uprv_strlen(pkgDataFlags[BIR_FLAGS]));
+
+    for (int32_t i = 0; i < length; i++) {
+        if (flag[i] == MAP_FILE_EXT[count]) {
+            if (count == 0) {
+                start = i;
+            }
+            count++;
+        } else {
+            count = 0;
+        }
+
+        if (count == uprv_strlen(MAP_FILE_EXT)) {
+            break;
+        }
+    }
+
+    if (start >= 0) {
+        int32_t index = 0;
+        for (int32_t i = 0;;i++) {
+            if (i == start) {
+                for (int32_t n = 0;;n++) {
+                    if (o->shortName[n] == 0) {
+                        break;
+                    }
+                    tmpbuffer[index++] = o->shortName[n];
+                }
+            }
+
+            tmpbuffer[index++] = flag[i];
+
+            if (flag[i] == 0) {
+                break;
+            }
+        }
+
+        uprv_memset(flag, 0, length);
+        uprv_strcpy(flag, tmpbuffer);
+
+        uprv_strcpy(mapFile, o->shortName);
+        uprv_strcat(mapFile, MAP_FILE_EXT);
+
+        f = T_FileStream_open(mapFile, "w");
+        if (f == nullptr) {
+            fprintf(stderr,"Unable to create map file: %s.\n", mapFile);
+            return nullptr;
+        } else {
+            snprintf(tmpbuffer, sizeof(tmpbuffer), "%s%s ", o->entryName, UDATA_CMN_INTERMEDIATE_SUFFIX);
+    
+            T_FileStream_writeLine(f, tmpbuffer);
+    
+            T_FileStream_close(f);
+        }
+    }
+#elif U_PLATFORM == U_PF_CYGWIN || U_PLATFORM == U_PF_MINGW
+    /* Cygwin needs to change flag options. */
+    char *flag = nullptr;
+    int32_t length = 0;
+
+    flag = pkgDataFlags[GENLIB];
+    length = static_cast<int32_t>(uprv_strlen(pkgDataFlags[GENLIB]));
+
+    int32_t position = length - 1;
+
+    for(;position >= 0;position--) {
+        if (flag[position] == '=') {
+            position++;
+            break;
+        }
+    }
+
+    uprv_memset(flag + position, 0, length - position);
+#elif U_PLATFORM == U_PF_OS400
+    /* OS/400 needs to fix the ld options (swap single quote with double quote) */
+    char *flag = nullptr;
+    int32_t length = 0;
+
+    flag = pkgDataFlags[GENLIB];
+    length = static_cast<int32_t>(uprv_strlen(pkgDataFlags[GENLIB]));
+
+    int32_t position = length - 1;
+
+    for(int32_t i = 0; i < length; i++) {
+        if (flag[i] == '\'') {
+            flag[i] = '\"';
+        }
+    }
+#endif
+    // Don't really need a return value, just need to stop compiler warnings about
+    // the unused parameter 'o' on platforms where it is not otherwise used.
+    return o;   
+}
+
+static void loadLists(UPKGOptions *o, UErrorCode *status)
+{
+    CharList   *l, *tail = nullptr, *tail2 = nullptr;
+    FileStream *in;
+    char        line[16384];
+    char       *linePtr, *lineNext;
+    const uint32_t   lineMax = 16300;
+    char       *tmp;
+    int32_t     tmpLength = 0;
+    char       *s;
+    int32_t     ln=0; /* line number */
+
+    for(l = o->fileListFiles; l; l = l->next) {
+        if(o->verbose) {
+            fprintf(stdout, "# pkgdata: Reading %s..\n", l->str);
+        }
+        /* TODO: stdin */
+        in = T_FileStream_open(l->str, "r"); /* open files list */
+
+        if(!in) {
+            fprintf(stderr, "Error opening <%s>.\n", l->str);
+            *status = U_FILE_ACCESS_ERROR;
+            return;
+        }
+
+        while(T_FileStream_readLine(in, line, sizeof(line))!=nullptr) { /* for each line */
+            ln++;
+            if(uprv_strlen(line)>lineMax) {
+                fprintf(stderr, "%s:%d - line too long (over %d chars)\n", l->str, (int)ln, (int)lineMax);
+                exit(1);
+            }
+            /* remove spaces at the beginning */
+            linePtr = line;
+            /* On z/OS, disable call to isspace (#9996).  Investigate using uprv_isspace instead (#9999) */
+#if U_PLATFORM != U_PF_OS390
+            while(isspace(*linePtr)) {
+                linePtr++;
+            }
+#endif
+            s=linePtr;
+            /* remove trailing newline characters */
+            while(*s!=0) {
+                if(*s=='\r' || *s=='\n') {
+                    *s=0;
+                    break;
+                }
+                ++s;
+            }
+            if((*linePtr == 0) || (*linePtr == '#')) {
+                continue; /* comment or empty line */
+            }
+
+            /* Now, process the line */
+            lineNext = nullptr;
+
+            while(linePtr && *linePtr) { /* process space-separated items */
+                while(*linePtr == ' ') {
+                    linePtr++;
+                }
+                /* Find the next quote */
+                if(linePtr[0] == '"')
+                {
+                    lineNext = uprv_strchr(linePtr+1, '"');
+                    if(lineNext == nullptr) {
+                        fprintf(stderr, "%s:%d - missing trailing double quote (\")\n",
+                            l->str, (int)ln);
+                        exit(1);
+                    } else {
+                        lineNext++;
+                        if(*lineNext) {
+                            if(*lineNext != ' ') {
+                                fprintf(stderr, "%s:%d - malformed quoted line at position %d, expected ' ' got '%c'\n",
+                                    l->str, (int)ln, (int)(lineNext-line), (*lineNext)?*lineNext:'0');
+                                exit(1);
+                            }
+                            *lineNext = 0;
+                            lineNext++;
+                        }
+                    }
+                } else {
+                    lineNext = uprv_strchr(linePtr, ' ');
+                    if(lineNext) {
+                        *lineNext = 0; /* terminate at space */
+                        lineNext++;
+                    }
+                }
+
+                /* add the file */
+                s = (char*)getLongPathname(linePtr);
+
+                /* normal mode.. o->files is just the bare list without package names */
+                o->files = pkg_appendToList(o->files, &tail, uprv_strdup(linePtr));
+                if(uprv_pathIsAbsolute(s) || s[0] == '.') {
+                    fprintf(stderr, "pkgdata: Error: absolute path encountered. Old style paths are not supported. Use relative paths such as 'fur.res' or 'translit%cfur.res'.\n\tBad path: '%s'\n", U_FILE_SEP_CHAR, s);
+                    exit(U_ILLEGAL_ARGUMENT_ERROR);
+                }
+                /* The +5 is to add a little extra space for, among other things, PKGDATA_FILE_SEP_STRING */
+                tmpLength = static_cast<int32_t>(uprv_strlen(o->srcDir) + uprv_strlen(s) + 5);
+                if((tmp = (char *)uprv_malloc(tmpLength)) == nullptr) {
+                    fprintf(stderr, "pkgdata: Error: Unable to allocate tmp buffer size: %d\n", tmpLength);
+                    exit(U_MEMORY_ALLOCATION_ERROR);
+                }
+                uprv_strcpy(tmp, o->srcDir);
+                uprv_strcat(tmp, o->srcDir[uprv_strlen(o->srcDir)-1] == U_FILE_SEP_CHAR ? "" : PKGDATA_FILE_SEP_STRING);
+                uprv_strcat(tmp, s);
+                o->filePaths = pkg_appendToList(o->filePaths, &tail2, tmp);
+                linePtr = lineNext;
+            } /* for each entry on line */
+        } /* for each line */
+        T_FileStream_close(in);
+    } /* for each file list file */
+}
+
+/* Helper for pkg_getPkgDataPath() */
+#if U_HAVE_POPEN
+static UBool getPkgDataPath(const char *cmd, UBool verbose, char *buf, size_t items) {
+    icu::CharString cmdBuf;
+    UErrorCode status = U_ZERO_ERROR;
+    LocalPipeFilePointer p;
+    size_t n;
+
+    cmdBuf.append(cmd, status);
+    if (verbose) {
+        fprintf(stdout, "# Calling: %s\n", cmdBuf.data());
+    }
+    p.adoptInstead( popen(cmdBuf.data(), "r") );
+
+    if (p.isNull() || (n = fread(buf, 1, items-1, p.getAlias())) <= 0) {
+        fprintf(stderr, "%s: Error calling '%s'\n", progname, cmd);
+        *buf = 0;
+        return false;
+    }
+
+    return true;
+}
+#endif
+
+/* Get path to pkgdata.inc. Try pkg-config first, falling back to icu-config. */
+static int32_t pkg_getPkgDataPath(UBool verbose, UOption *option) {
+#if U_HAVE_POPEN
+    static char buf[512] = "";
+    UBool pkgconfigIsValid = true;
+    const char *pkgconfigCmd = "pkg-config --variable=pkglibdir icu-uc";
+    const char *icuconfigCmd = "icu-config --incpkgdatafile";
+    const char *pkgdata = "pkgdata.inc";
+
+    if (!getPkgDataPath(pkgconfigCmd, verbose, buf, UPRV_LENGTHOF(buf))) {
+        if (!getPkgDataPath(icuconfigCmd, verbose, buf, UPRV_LENGTHOF(buf))) {
+            fprintf(stderr, "%s: icu-config not found. Fix PATH or specify -O option\n", progname);
+            return -1;
+        }
+
+        pkgconfigIsValid = false;
+    }
+
+    for (int32_t length = strlen(buf) - 1; length >= 0; length--) {
+        if (buf[length] == '\n' || buf[length] == ' ') {
+            buf[length] = 0;
+        } else {
+            break;
+        }
+    }
+
+    if (!*buf) {
+        fprintf(stderr, "%s: Unable to locate pkgdata.inc. Unable to parse the results of '%s'. Check paths or use the -O option to specify the path to pkgdata.inc.\n", progname, pkgconfigIsValid ? pkgconfigCmd : icuconfigCmd);
+        return -1;
+    }
+
+    if (pkgconfigIsValid) {
+        uprv_strcat(buf, U_FILE_SEP_STRING);
+        uprv_strcat(buf, pkgdata);
+    }
+
+    buf[strlen(buf)] = 0;
+
+    option->value = buf;
+    option->doesOccur = true;
+
+    return 0;
+#else
+    return -1;
+#endif
+}
+
+#ifdef CAN_WRITE_OBJ_CODE
+ /* Create optMatchArch for genccode architecture detection */
+static void pkg_createOptMatchArch(char *optMatchArch) {
+#if !defined(WINDOWS_WITH_MSVC) || defined(USING_CYGWIN)
+    const char* code = "void oma(){}";
+    const char* source = "oma.c";
+    const char* obj = "oma.obj";
+    FileStream* stream = nullptr;
+
+    stream = T_FileStream_open(source,"w");
+    if (stream != nullptr) {
+        T_FileStream_writeLine(stream, code);
+        T_FileStream_close(stream);
+
+        char cmd[LARGE_BUFFER_MAX_SIZE];
+        snprintf(cmd, sizeof(cmd), "%s %s -o %s",
+            pkgDataFlags[COMPILER],
+            source,
+            obj);
+
+        if (runCommand(cmd) == 0){
+            sprintf(optMatchArch, "%s", obj);
+        }
+        else {
+            fprintf(stderr, "Failed to compile %s\n", source);
+        }
+        if(!T_FileStream_remove(source)){
+            fprintf(stderr, "T_FileStream_remove failed to delete %s\n", source);
+        }
+    }
+    else {
+        fprintf(stderr, "T_FileStream_open failed to open %s for writing\n", source);
+    }
+#endif
+}
+static void pkg_destroyOptMatchArch(char *optMatchArch) {
+    if(T_FileStream_file_exists(optMatchArch) && !T_FileStream_remove(optMatchArch)){
+        fprintf(stderr, "T_FileStream_remove failed to delete %s\n", optMatchArch);
+    }
+}
+#endif
diff --git a/intl/icu/source/tools/pkgdata/pkgdata.vcxproj b/intl/icu/source/tools/pkgdata/pkgdata.vcxproj
new file mode 100644
index 0000000000..0975456bda
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/pkgdata.vcxproj
@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{4C8454FE-81D3-4CA3-9927-29BA96F03DAC}</ProjectGuid>
+  </PropertyGroup>
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseOfMfc>false</UseOfMfc>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <!-- The following import will include the 'default' configuration options for VS projects. -->
+  <Import Project="..\..\allinone\Build.Windows.ProjectConfiguration.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <OutDir>.\$(Platform)\$(Configuration)\</OutDir>
+    <IntDir>.\$(Platform)\$(Configuration)\</IntDir>
+    <!-- The ICU projects use "Win32" to mean "x86", so we need to special case it. -->
+    <OutDir Condition="'$(Platform)'=='Win32'">.\x86\$(Configuration)\</OutDir>
+    <IntDir Condition="'$(Platform)'=='Win32'">.\x86\$(Configuration)\</IntDir>
+    <!-- Disable Incremental Linking for Release builds as it prevents Link-time Code Generation -->
+    <LinkIncremental Condition="'$(Configuration)'=='Debug'">true</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)'=='Release'">false</LinkIncremental>
+  </PropertyGroup>
+  <!-- Options that are common to *all* configurations -->
+  <ItemDefinitionGroup>
+    <Midl>
+      <TypeLibraryName>$(OutDir)/pkgdata.tlb</TypeLibraryName>
+    </Midl>
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <CompileAs>Default</CompileAs>
+      <DisableLanguageExtensions>true</DisableLanguageExtensions>
+      <AdditionalIncludeDirectories>../../../include;../../common;../toolutil;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PrecompiledHeaderOutputFile>$(OutDir)/pkgdata.pch</PrecompiledHeaderOutputFile>
+      <AssemblerListingLocation>$(OutDir)/</AssemblerListingLocation>
+      <ObjectFileName>$(OutDir)/</ObjectFileName>
+      <ProgramDataBaseFileName>$(OutDir)/pkgdata.pdb</ProgramDataBaseFileName>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <OutputFile>$(OutDir)/pkgdata.exe</OutputFile>
+      <AdditionalLibraryDirectories>..\..\..\$(IcuLibOutputDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+    </Link>
+    <CustomBuildStep>
+      <Command>copy "$(TargetPath)" ..\..\..\$(IcuBinOutputDir)</Command>
+      <Outputs>..\..\..\$(IcuBinOutputDir)\$(TargetFileName);%(Outputs)</Outputs>
+    </CustomBuildStep>
+  </ItemDefinitionGroup>
+  <!-- Options that are common to all 'Debug' project configurations -->
+  <ItemDefinitionGroup Condition="'$(Configuration)'=='Debug'">
+    <ClCompile>
+      <BrowseInformation>true</BrowseInformation>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>icuucd.lib;icutud.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <!-- Options that are common to all 'Release' project configurations -->
+  <ItemDefinitionGroup Condition="'$(Configuration)'=='Release'">
+    <ClCompile>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>icuuc.lib;icutu.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="pkgdata.cpp" />
+    <ClCompile Include="pkgtypes.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pkgtypes.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/intl/icu/source/tools/pkgdata/pkgdata.vcxproj.filters b/intl/icu/source/tools/pkgdata/pkgdata.vcxproj.filters
new file mode 100644
index 0000000000..dc530aba11
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/pkgdata.vcxproj.filters
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{73901add-40cd-4d05-a0ba-d336fa136062}</UniqueIdentifier>
+      <Extensions>cpp;c;cxx;rc;def;r;odl;idl;hpj;bat</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{0dcaab2b-a92a-430e-8185-de2a2ababd2a}</UniqueIdentifier>
+      <Extensions>h;hpp;hxx;hm;inl</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{4a7309b1-40ce-4bb5-b80d-2cc01b68e8d0}</UniqueIdentifier>
+      <Extensions>ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="pkgdata.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="pkgtypes.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="pkgtypes.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/intl/icu/source/tools/pkgdata/pkgtypes.c b/intl/icu/source/tools/pkgdata/pkgtypes.c
new file mode 100644
index 0000000000..26bd945df7
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/pkgtypes.c
@@ -0,0 +1,303 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/**************************************************************************
+*
+*   Copyright (C) 2000-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+***************************************************************************
+*   file name:  pkgdata.c
+*   encoding:   ANSI X3.4 (1968)
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2000may16
+*   created by: Steven \u24C7 Loomis
+*
+*  common types for pkgdata
+*/
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "unicode/utypes.h"
+#include "unicode/putil.h"
+#include "cmemory.h"
+#include "cstring.h"
+#include "pkgtypes.h"
+#include "putilimp.h"
+
+const char *pkg_writeCharListWrap(FileStream *s, CharList *l, const char *delim, const char *brk, int32_t quote)
+{
+    int32_t ln = 0;
+    char buffer[1024];
+    while(l != NULL)
+    {
+        if(l->str)
+        {
+            uprv_strncpy(buffer, l->str, 1020);
+            buffer[1019]=0;
+
+            if(quote < 0) { /* remove quotes */
+                if(buffer[uprv_strlen(buffer)-1] == '"') {
+                    buffer[uprv_strlen(buffer)-1] = '\0';
+                }
+                if(buffer[0] == '"') {
+                    uprv_strcpy(buffer, buffer+1);
+                }
+            } else if(quote > 0) { /* add quotes */
+                if(l->str[0] != '"') {
+                    uprv_strcpy(buffer, "\"");
+                    uprv_strncat(buffer, l->str,1020);
+                }
+                if(l->str[uprv_strlen(l->str)-1] != '"') {
+                    uprv_strcat(buffer, "\"");
+                }
+            }
+            T_FileStream_write(s, buffer, (int32_t)uprv_strlen(buffer));
+
+            ln += (int32_t)uprv_strlen(l->str);
+        }
+
+        if(l->next && delim)
+        {
+            if(ln > 60 && brk) {
+                ln  = 0;
+                T_FileStream_write(s, brk, (int32_t)uprv_strlen(brk));
+            }
+            T_FileStream_write(s, delim, (int32_t)uprv_strlen(delim));
+        }
+        l = l->next;
+    }
+    return NULL;
+}
+
+
+const char *pkg_writeCharList(FileStream *s, CharList *l, const char *delim, int32_t quote)
+{
+    char buffer[1024];
+    while(l != NULL)
+    {
+        if(l->str)
+        {
+            uprv_strncpy(buffer, l->str, 1023);
+            buffer[1023]=0;
+            if(uprv_strlen(l->str) >= 1023)
+            {
+                fprintf(stderr, "%s:%d: Internal error, line too long (greater than 1023 chars)\n",
+                        __FILE__, __LINE__);
+                exit(0);
+            }
+            if(quote < 0) { /* remove quotes */
+                if(buffer[uprv_strlen(buffer)-1] == '"') {
+                    buffer[uprv_strlen(buffer)-1] = '\0';
+                }
+                if(buffer[0] == '"') {
+                    uprv_strcpy(buffer, buffer+1);
+                }
+            } else if(quote > 0) { /* add quotes */
+                if(l->str[0] != '"') {
+                    uprv_strcpy(buffer, "\"");
+                    uprv_strcat(buffer, l->str);
+                }
+                if(l->str[uprv_strlen(l->str)-1] != '"') {
+                    uprv_strcat(buffer, "\"");
+                }
+            }
+            T_FileStream_write(s, buffer, (int32_t)uprv_strlen(buffer));
+        }
+
+        if(l->next && delim)
+        {
+            T_FileStream_write(s, delim, (int32_t)uprv_strlen(delim));
+        }
+        l = l->next;
+    }
+    return NULL;
+}
+
+
+/*
+ * Count items . 0 if null
+ */
+uint32_t pkg_countCharList(CharList *l)
+{
+  uint32_t c = 0;
+  while(l != NULL)
+  {
+    c++;
+    l = l->next;
+  }
+
+  return c;
+}
+
+/*
+ * Prepend string to CharList
+ */
+CharList *pkg_prependToList(CharList *l, const char *str)
+{
+  CharList *newList;
+  newList = uprv_malloc(sizeof(CharList));
+
+  /* test for NULL */
+  if(newList == NULL) {
+    return NULL;
+  }
+
+  newList->str = str;
+  newList->next = l;
+  return newList;
+}
+
+/*
+ * append string to CharList. *end or even end can be null if you don't
+ * know it.[slow]
+ * Str is adopted!
+ */
+CharList *pkg_appendToList(CharList *l, CharList** end, const char *str)
+{
+  CharList *endptr = NULL, *tmp;
+
+  if(end == NULL)
+  {
+    end = &endptr;
+  }
+
+  /* FIND the end */
+  if((*end == NULL) && (l != NULL))
+  {
+    tmp = l;
+    while(tmp->next)
+    {
+      tmp = tmp->next;
+    }
+
+    *end = tmp;
+  }
+
+  /* Create a new empty list and append it */
+  if(l == NULL)
+    {
+      l = pkg_prependToList(NULL, str);
+    }
+  else
+    {
+      (*end)->next = pkg_prependToList(NULL, str);
+    }
+
+  /* Move the end pointer. */
+  if(*end)
+    {
+      (*end) = (*end)->next;
+    }
+  else
+    {
+      *end = l;
+    }
+
+  return l;
+}
+
+char * convertToNativePathSeparators(char *path) {
+#if defined(U_MAKE_IS_NMAKE)
+    char *itr;
+    while ((itr = uprv_strchr(path, U_FILE_ALT_SEP_CHAR))) {
+        *itr = U_FILE_SEP_CHAR;
+    }
+#endif
+    return path;
+}
+
+CharList *pkg_appendUniqueDirToList(CharList *l, CharList** end, const char *strAlias) {
+    char aBuf[1024];
+    char *rPtr;
+    rPtr = uprv_strrchr(strAlias, U_FILE_SEP_CHAR);
+#if (U_FILE_SEP_CHAR != U_FILE_ALT_SEP_CHAR)
+    {
+        char *aPtr = uprv_strrchr(strAlias, U_FILE_ALT_SEP_CHAR);
+        if(!rPtr || /* regular char wasn't found or.. */
+            (aPtr && (aPtr > rPtr)))
+        { /* alt ptr exists and is to the right of r ptr */
+            rPtr = aPtr; /* may copy NULL which is OK */
+        }
+    }
+#endif
+    if(!rPtr) {
+        return l; /* no dir path */
+    }
+    if((rPtr-strAlias) >= UPRV_LENGTHOF(aBuf)) {
+        fprintf(stderr, "## ERR: Path too long [%d chars]: %s\n", (int)sizeof(aBuf), strAlias);
+        return l;
+    }
+    strncpy(aBuf, strAlias,(rPtr-strAlias));
+    aBuf[rPtr-strAlias]=0;  /* no trailing slash */
+    convertToNativePathSeparators(aBuf);
+
+    if(!pkg_listContains(l, aBuf)) {
+        return pkg_appendToList(l, end, uprv_strdup(aBuf));
+    } else {
+        return l; /* already found */
+    }
+}
+
+#if 0
+static CharList *
+pkg_appendFromStrings(CharList *l, CharList** end, const char *s, int32_t len)
+{
+  CharList *endptr = NULL;
+  const char *p;
+  char *t;
+  const char *targ;
+  if(end == NULL) {
+    end = &endptr;
+  }
+
+  if(len==-1) {
+    len = uprv_strlen(s);
+  }
+  targ = s+len;
+
+  while(*s && s<targ) {
+    while(s<targ&&isspace(*s)) s++;
+    for(p=s;s<targ&&!isspace(*p);p++);
+    if(p!=s) {
+      t = uprv_malloc(p-s+1);
+      uprv_strncpy(t,s,p-s);
+      t[p-s]=0;
+      l=pkg_appendToList(l,end,t);
+      fprintf(stderr, " P %s\n", t);
+    }
+    s=p;
+  }
+
+  return l;
+}
+#endif
+
+
+/*
+ * Delete list
+ */
+void pkg_deleteList(CharList *l)
+{
+  CharList *tmp;
+  while(l != NULL)
+  {
+    uprv_free((void*)l->str);
+    tmp = l;
+    l = l->next;
+    uprv_free(tmp);
+  }
+}
+
+UBool  pkg_listContains(CharList *l, const char *str)
+{
+  for(;l;l=l->next){
+    if(!uprv_strcmp(l->str, str)) {
+      return true;
+    }
+  }
+
+  return false;
+}
diff --git a/intl/icu/source/tools/pkgdata/pkgtypes.h b/intl/icu/source/tools/pkgdata/pkgtypes.h
new file mode 100644
index 0000000000..51c11e0a14
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/pkgtypes.h
@@ -0,0 +1,172 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/**************************************************************************
+*
+*   Copyright (C) 2000-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+***************************************************************************
+*   file name:  pkgdata.c
+*   encoding:   ANSI X3.4 (1968)
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2000may16
+*   created by: Steven \u24C7 Loomis
+*
+*  common types for pkgdata
+*/
+
+#ifndef _PKGTYPES
+#define _PKGTYPES
+
+/* headers */
+#include "unicode/utypes.h"
+#include "filestrm.h"
+
+/* linked list */
+struct _CharList;
+
+typedef struct _CharList
+{
+  const char       *str;
+  struct _CharList *next;
+} CharList;
+
+
+
+/*
+ * write CharList 'l' into stream 's' using delimiter 'delim' (delim can be nullptr). quoted: -1 remove, 0 as is, 1 add quotes
+ */
+const char *pkg_writeCharList(FileStream *s, CharList *l, const char *delim, int32_t quoted);
+
+/*
+ * Same, but use line breaks. quoted: -1 remove, 0 as is, 1 add quotes
+ */
+const char *pkg_writeCharListWrap(FileStream *s, CharList *l, const char *delim, const char *brk, int32_t quoted);
+
+
+/*
+ * Count items . 0 if null
+ */
+uint32_t pkg_countCharList(CharList *l);
+
+/*
+ * Prepend string to CharList. Str is adopted!
+ */
+CharList *pkg_prependToList(CharList *l, const char *str);
+
+/*
+ * append string to CharList. *end or even end can be null if you don't
+ * know it.[slow]
+ * Str is adopted!
+ */
+CharList *pkg_appendToList(CharList *l, CharList** end, const char *str);
+
+/*
+ * strAlias is an alias to a full or relative path to a FILE.  This function
+ * will search strAlias for the directory name (with strrchr). Then, it will
+ * determine if that directory is already in list l.  If not, it will add it
+ * with strdup(strAlias).
+ * @param l list to append to , or nullptr
+ * @param end end pointer-to-pointer.  Can point to null, or be null.
+ * @param strAlias alias to full path string
+ * @return new list
+ */
+CharList *pkg_appendUniqueDirToList(CharList *l, CharList** end, const char *strAlias);
+
+/*
+ * does list contain string?  Returns: t/f
+ */
+UBool  pkg_listContains(CharList *l, const char *str);
+
+/*
+ * Delete list
+ */
+void pkg_deleteList(CharList *l);
+
+/*
+ * Mode package function
+ */
+struct UPKGOptions_;
+typedef   void (UPKGMODE)(struct UPKGOptions_ *, FileStream *s, UErrorCode *status);
+
+/*
+ * Static mode - write the readme file
+ * @param opt UPKGOptions
+ * @param libName Name of the .lib, etc file
+ * @param status ICU error code
+ */
+void pkg_sttc_writeReadme(struct UPKGOptions_ *opt, const char *libName, UErrorCode *status);
+
+/*
+ * Options to be passed throughout the program
+ */
+
+typedef struct UPKGOptions_
+{
+  CharList   *fileListFiles; /* list of files containing files for inclusion in the package */
+  CharList   *filePaths;     /* All the files, with long paths */
+  CharList   *files;         /* All the files */
+  CharList   *outFiles;      /* output files [full paths] */
+
+  const char *shortName;   /* name of what we're building */
+  const char *cShortName;   /* name of what we're building as a C identifier */
+  const char *entryName;   /* special entrypoint name */
+  const char *targetDir;  /* dir for packaged data to go */
+  const char *dataDir;    /* parent of dir for package (default: tmpdir) */
+  const char *tmpDir;
+  const char *srcDir;
+  const char *options;     /* Options arg */
+  const char *mode;        /* Mode of building */
+  const char *version;     /* Library version */
+  const char *comment;     /* comment string */
+  const char *install;     /* Where to install to (nullptr = don't install) */
+  const char *icuroot;     /* where does ICU lives */
+  const char *libName;     /* name for library (default: shortName) */
+  UBool      rebuild;
+  UBool      verbose;
+  UBool      quiet;
+  UBool      withoutAssembly;
+  UBool      pdsbuild;     /* for building PDS in z/OS */
+} UPKGOptions;
+
+char * convertToNativePathSeparators(char *path);
+
+
+/* set up common defines for library naming */
+
+#if U_PLATFORM_HAS_WIN32_API
+# ifndef UDATA_SO_SUFFIX
+#  define UDATA_SO_SUFFIX ".dll"
+# endif
+# define LIB_PREFIX ""
+# define LIB_STATIC_PREFIX ""
+# define OBJ_SUFFIX ".obj"
+# define UDATA_LIB_SUFFIX ".lib"
+
+#elif U_PLATFORM == U_PF_CYGWIN
+# define LIB_PREFIX "cyg"
+# define LIB_STATIC_PREFIX "lib"
+# define OBJ_SUFFIX ".o"
+# define UDATA_LIB_SUFFIX ".a"
+
+#else  /* POSIX? */
+# define LIB_PREFIX "lib"
+# define LIB_STATIC_PREFIX "lib"
+# define OBJ_SUFFIX ".o"
+# define UDATA_LIB_SUFFIX ".a"
+#endif
+
+#define ASM_SUFFIX ".s"
+
+/* defines for common file names */
+#define UDATA_CMN_PREFIX ""
+#define UDATA_CMN_SUFFIX ".dat"
+#define UDATA_CMN_INTERMEDIATE_SUFFIX "_dat"
+
+#define ICUDATA_RES_FILE "icudata.res"
+
+#define PKGDATA_DERIVED_PATH '\t'
+
+#endif
diff --git a/intl/icu/source/tools/pkgdata/sources.txt b/intl/icu/source/tools/pkgdata/sources.txt
new file mode 100644
index 0000000000..8a5b202fa9
--- /dev/null
+++ b/intl/icu/source/tools/pkgdata/sources.txt
@@ -0,0 +1,2 @@
+pkgdata.cpp
+pkgtypes.c