1 files changed, 354 insertions, 0 deletions
diff --git a/src/zstd/lib/Makefile b/src/zstd/lib/Makefile
new file mode 100644
index 000000000..7c6dff024
--- /dev/null
+++ b/src/zstd/lib/Makefile
@@ -0,0 +1,354 @@
+# ################################################################
+# Copyright (c) 2015-2020, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# You may select, at your option, one of the above-listed licenses.
+# ################################################################
+
+Q = $(if $(filter 1,$(V) $(VERBOSE)),,@)
+
+# When cross-compiling from linux to windows, you might
+# need to specify this as "Windows." Fedora build fails
+# without it.
+#
+# Note: mingw-w64 build from linux to windows does not
+# fail on other tested distros (ubuntu, debian) even
+# without manually specifying the TARGET_SYSTEM.
+TARGET_SYSTEM ?= $(OS)
+
+# Version numbers
+LIBVER_MAJOR_SCRIPT:=`sed -n '/define ZSTD_VERSION_MAJOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ./zstd.h`
+LIBVER_MINOR_SCRIPT:=`sed -n '/define ZSTD_VERSION_MINOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ./zstd.h`
+LIBVER_PATCH_SCRIPT:=`sed -n '/define ZSTD_VERSION_RELEASE/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < ./zstd.h`
+LIBVER_SCRIPT:= $(LIBVER_MAJOR_SCRIPT).$(LIBVER_MINOR_SCRIPT).$(LIBVER_PATCH_SCRIPT)
+LIBVER_MAJOR := $(shell echo $(LIBVER_MAJOR_SCRIPT))
+LIBVER_MINOR := $(shell echo $(LIBVER_MINOR_SCRIPT))
+LIBVER_PATCH := $(shell echo $(LIBVER_PATCH_SCRIPT))
+LIBVER := $(shell echo $(LIBVER_SCRIPT))
+VERSION?= $(LIBVER)
+CCVER := $(shell $(CC) --version)
+
+CPPFLAGS+= -DXXH_NAMESPACE=ZSTD_
+ifeq ($(TARGET_SYSTEM),Windows_NT)   # MinGW assumed
+CPPFLAGS   += -D__USE_MINGW_ANSI_STDIO   # compatibility with %zu formatting
+endif
+DEBUGFLAGS= -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
+            -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
+            -Wstrict-prototypes -Wundef -Wpointer-arith \
+            -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
+            -Wredundant-decls -Wmissing-prototypes -Wc++-compat
+CFLAGS  += $(DEBUGFLAGS) $(MOREFLAGS)
+FLAGS    = $(CPPFLAGS) $(CFLAGS)
+
+HAVE_COLORNEVER = $(shell echo a | grep --color=never a > /dev/null 2> /dev/null && echo 1 || echo 0)
+GREP_OPTIONS ?=
+ifeq ($HAVE_COLORNEVER, 1)
+GREP_OPTIONS += --color=never
+endif
+GREP = grep $(GREP_OPTIONS)
+
+ZSTDCOMMON_FILES := $(sort $(wildcard common/*.c))
+ZSTDCOMP_FILES := $(sort $(wildcard compress/*.c))
+ZSTDDECOMP_FILES := $(sort $(wildcard decompress/*.c))
+ZDICT_FILES := $(sort $(wildcard dictBuilder/*.c))
+ZDEPR_FILES := $(sort $(wildcard deprecated/*.c))
+ZSTD_FILES := $(ZSTDCOMMON_FILES)
+
+ifeq ($(findstring GCC,$(CCVER)),GCC)
+decompress/zstd_decompress_block.o :	CFLAGS+=-fno-tree-vectorize
+endif
+
+# This is a helper variable that configures a bunch of other variables to new,
+# space-optimized defaults.
+ZSTD_LIB_MINIFY ?= 0
+ifneq ($(ZSTD_LIB_MINIFY), 0)
+	HAVE_CC_OZ ?= $(shell echo "" | $(CC) -Oz -x c -c - -o /dev/null 2> /dev/null && echo 1 || echo 0)
+	ZSTD_LEGACY_SUPPORT ?= 0
+	ZSTD_LIB_DEPRECATED ?= 0
+	HUF_FORCE_DECOMPRESS_X1 ?= 1
+	ZSTD_FORCE_DECOMPRESS_SHORT ?= 1
+	ZSTD_NO_INLINE ?= 1
+	ZSTD_STRIP_ERROR_STRINGS ?= 1
+	ifneq ($(HAVE_CC_OZ), 0)
+		# Some compilers (clang) support an even more space-optimized setting.
+		CFLAGS += -Oz
+	else
+		CFLAGS += -Os
+	endif
+	CFLAGS += -fno-stack-protector -fomit-frame-pointer -fno-ident \
+	          -DDYNAMIC_BMI2=0 -DNDEBUG
+else
+	CFLAGS += -O3
+endif
+
+# Modules
+ZSTD_LIB_COMPRESSION ?= 1
+ZSTD_LIB_DECOMPRESSION ?= 1
+ZSTD_LIB_DICTBUILDER ?= 1
+ZSTD_LIB_DEPRECATED ?= 1
+
+# Legacy support
+ZSTD_LEGACY_SUPPORT ?= 5
+ZSTD_LEGACY_MULTITHREADED_API ?= 0
+
+# Build size optimizations
+HUF_FORCE_DECOMPRESS_X1 ?= 0
+HUF_FORCE_DECOMPRESS_X2 ?= 0
+ZSTD_FORCE_DECOMPRESS_SHORT ?= 0
+ZSTD_FORCE_DECOMPRESS_LONG ?= 0
+ZSTD_NO_INLINE ?= 0
+ZSTD_STRIP_ERROR_STRINGS ?= 0
+
+ifeq ($(ZSTD_LIB_COMPRESSION), 0)
+	ZSTD_LIB_DICTBUILDER = 0
+	ZSTD_LIB_DEPRECATED = 0
+endif
+
+ifeq ($(ZSTD_LIB_DECOMPRESSION), 0)
+	ZSTD_LEGACY_SUPPORT = 0
+	ZSTD_LIB_DEPRECATED = 0
+endif
+
+ifneq ($(ZSTD_LIB_COMPRESSION), 0)
+	ZSTD_FILES += $(ZSTDCOMP_FILES)
+endif
+
+ifneq ($(ZSTD_LIB_DECOMPRESSION), 0)
+	ZSTD_FILES += $(ZSTDDECOMP_FILES)
+endif
+
+ifneq ($(ZSTD_LIB_DEPRECATED), 0)
+	ZSTD_FILES += $(ZDEPR_FILES)
+endif
+
+ifneq ($(ZSTD_LIB_DICTBUILDER), 0)
+	ZSTD_FILES += $(ZDICT_FILES)
+endif
+
+ifneq ($(HUF_FORCE_DECOMPRESS_X1), 0)
+	CFLAGS += -DHUF_FORCE_DECOMPRESS_X1
+endif
+
+ifneq ($(HUF_FORCE_DECOMPRESS_X2), 0)
+	CFLAGS += -DHUF_FORCE_DECOMPRESS_X2
+endif
+
+ifneq ($(ZSTD_FORCE_DECOMPRESS_SHORT), 0)
+	CFLAGS += -DZSTD_FORCE_DECOMPRESS_SHORT
+endif
+
+ifneq ($(ZSTD_FORCE_DECOMPRESS_LONG), 0)
+	CFLAGS += -DZSTD_FORCE_DECOMPRESS_LONG
+endif
+
+ifneq ($(ZSTD_NO_INLINE), 0)
+	CFLAGS += -DZSTD_NO_INLINE
+endif
+
+ifneq ($(ZSTD_STRIP_ERROR_STRINGS), 0)
+	CFLAGS += -DZSTD_STRIP_ERROR_STRINGS
+endif
+
+ifneq ($(ZSTD_LEGACY_MULTITHREADED_API), 0)
+	CFLAGS += -DZSTD_LEGACY_MULTITHREADED_API
+endif
+
+ifneq ($(ZSTD_LEGACY_SUPPORT), 0)
+ifeq ($(shell test $(ZSTD_LEGACY_SUPPORT) -lt 8; echo $$?), 0)
+	ZSTD_FILES += $(shell ls legacy/*.c | $(GREP) 'v0[$(ZSTD_LEGACY_SUPPORT)-7]')
+endif
+endif
+CPPFLAGS  += -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT)
+
+ZSTD_OBJ   := $(patsubst %.c,%.o,$(ZSTD_FILES))
+
+# macOS linker doesn't support -soname, and use different extension
+# see : https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryDesignGuidelines.html
+ifeq ($(shell uname), Darwin)
+	SHARED_EXT = dylib
+	SHARED_EXT_MAJOR = $(LIBVER_MAJOR).$(SHARED_EXT)
+	SHARED_EXT_VER = $(LIBVER).$(SHARED_EXT)
+	SONAME_FLAGS = -install_name $(LIBDIR)/libzstd.$(SHARED_EXT_MAJOR) -compatibility_version $(LIBVER_MAJOR) -current_version $(LIBVER)
+else
+	SONAME_FLAGS = -Wl,-soname=libzstd.$(SHARED_EXT).$(LIBVER_MAJOR)
+	SHARED_EXT = so
+	SHARED_EXT_MAJOR = $(SHARED_EXT).$(LIBVER_MAJOR)
+	SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
+endif
+
+
+.PHONY: default lib-all all clean install uninstall
+
+default: lib-release
+
+# alias
+lib-all: all
+
+all: lib
+
+libzstd.a: ARFLAGS = rcs
+libzstd.a: $(ZSTD_OBJ)
+	@echo compiling static library
+	$(Q)$(AR) $(ARFLAGS) $@ $^
+
+ifneq (,$(filter Windows%,$(TARGET_SYSTEM)))
+
+LIBZSTD = dll\libzstd.dll
+$(LIBZSTD): $(ZSTD_FILES)
+	@echo compiling dynamic library $(LIBVER)
+	$(CC) $(FLAGS) -DZSTD_DLL_EXPORT=1 -Wl,--out-implib,dll\libzstd.dll.a -shared $^ -o $@
+
+else
+
+LIBZSTD = libzstd.$(SHARED_EXT_VER)
+$(LIBZSTD): LDFLAGS += -shared -fPIC -fvisibility=hidden
+$(LIBZSTD): $(ZSTD_FILES)
+	@echo compiling dynamic library $(LIBVER)
+	$(Q)$(CC) $(FLAGS) $^ $(LDFLAGS) $(SONAME_FLAGS) -o $@
+	@echo creating versioned links
+	$(Q)ln -sf $@ libzstd.$(SHARED_EXT_MAJOR)
+	$(Q)ln -sf $@ libzstd.$(SHARED_EXT)
+
+endif
+
+.PHONY: libzstd
+libzstd : $(LIBZSTD)
+
+.PHONY: lib
+lib : libzstd.a libzstd
+
+.PHONY: lib-mt
+%-mt : CPPFLAGS += -DZSTD_MULTITHREAD
+%-mt : LDFLAGS  += -pthread
+%-mt : %
+	@echo multi-threading build completed
+
+.PHONY: lib-release
+%-release : DEBUGFLAGS :=
+%-release : %
+	@echo release build completed
+
+
+# Special case : building library in single-thread mode _and_ without zstdmt_compress.c
+ZSTDMT_FILES = compress/zstdmt_compress.c
+ZSTD_NOMT_FILES = $(filter-out $(ZSTDMT_FILES),$(ZSTD_FILES))
+libzstd-nomt: LDFLAGS += -shared -fPIC -fvisibility=hidden
+libzstd-nomt: $(ZSTD_NOMT_FILES)
+	@echo compiling single-thread dynamic library $(LIBVER)
+	@echo files : $(ZSTD_NOMT_FILES)
+	$(Q)$(CC) $(FLAGS) $^ $(LDFLAGS) $(SONAME_FLAGS) -o $@
+
+clean:
+	$(Q)$(RM) -r *.dSYM   # macOS-specific
+	$(Q)$(RM) core *.o *.a *.gcda *.$(SHARED_EXT) *.$(SHARED_EXT).* libzstd.pc
+	$(Q)$(RM) dll/libzstd.dll dll/libzstd.lib libzstd-nomt*
+	$(Q)$(RM) common/*.o compress/*.o decompress/*.o dictBuilder/*.o legacy/*.o deprecated/*.o
+	@echo Cleaning library completed
+
+#-----------------------------------------------------------------------------
+# make install is validated only for below listed environments
+#-----------------------------------------------------------------------------
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku))
+
+all: libzstd.pc
+
+DESTDIR     ?=
+# directory variables : GNU conventions prefer lowercase
+# see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
+# support both lower and uppercase (BSD), use uppercase in script
+prefix      ?= /usr/local
+PREFIX      ?= $(prefix)
+exec_prefix ?= $(PREFIX)
+EXEC_PREFIX ?= $(exec_prefix)
+libdir      ?= $(EXEC_PREFIX)/lib
+LIBDIR      ?= $(libdir)
+includedir  ?= $(PREFIX)/include
+INCLUDEDIR  ?= $(includedir)
+
+PCLIBDIR ?= $(shell echo "$(LIBDIR)" | sed -n -E -e "s@^$(EXEC_PREFIX)(/|$$)@@p")
+PCINCDIR ?= $(shell echo "$(INCLUDEDIR)" | sed -n -E -e "s@^$(PREFIX)(/|$$)@@p")
+
+ifeq (,$(PCLIBDIR))
+# Additional prefix check is required, since the empty string is technically a
+# valid PCLIBDIR
+ifeq (,$(shell echo "$(LIBDIR)" | sed -n -E -e "\\@^$(EXEC_PREFIX)(/|$$)@ p"))
+$(error configured libdir ($(LIBDIR)) is outside of prefix ($(PREFIX)), can't generate pkg-config file)
+endif
+endif
+
+ifeq (,$(PCINCDIR))
+# Additional prefix check is required, since the empty string is technically a
+# valid PCINCDIR
+ifeq (,$(shell echo "$(INCLUDEDIR)" | sed -n -E -e "\\@^$(PREFIX)(/|$$)@ p"))
+$(error configured includedir ($(INCLUDEDIR)) is outside of exec_prefix ($(EXEC_PREFIX)), can't generate pkg-config file)
+endif
+endif
+
+ifneq (,$(filter $(shell uname),FreeBSD NetBSD DragonFly))
+PKGCONFIGDIR ?= $(PREFIX)/libdata/pkgconfig
+else
+PKGCONFIGDIR ?= $(LIBDIR)/pkgconfig
+endif
+
+ifneq (,$(filter $(shell uname),SunOS))
+INSTALL ?= ginstall
+else
+INSTALL ?= install
+endif
+
+INSTALL_PROGRAM ?= $(INSTALL)
+INSTALL_DATA    ?= $(INSTALL) -m 644
+
+
+libzstd.pc:
+libzstd.pc: libzstd.pc.in
+	@echo creating pkgconfig
+	$(Q)@sed -E -e 's|@PREFIX@|$(PREFIX)|' \
+          -e 's|@LIBDIR@|$(PCLIBDIR)|' \
+          -e 's|@INCLUDEDIR@|$(PCINCDIR)|' \
+          -e 's|@VERSION@|$(VERSION)|' \
+          $< >$@
+
+install: install-pc install-static install-shared install-includes
+	@echo zstd static and shared library installed
+
+install-pc: libzstd.pc
+	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(PKGCONFIGDIR)/
+	$(Q)$(INSTALL_DATA) libzstd.pc $(DESTDIR)$(PKGCONFIGDIR)/
+
+install-static: libzstd.a
+	@echo Installing static library
+	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(LIBDIR)/
+	$(Q)$(INSTALL_DATA) libzstd.a $(DESTDIR)$(LIBDIR)
+
+install-shared: libzstd
+	@echo Installing shared library
+	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(LIBDIR)/
+	$(Q)$(INSTALL_PROGRAM) $(LIBZSTD) $(DESTDIR)$(LIBDIR)
+	$(Q)ln -sf $(LIBZSTD) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT_MAJOR)
+	$(Q)ln -sf $(LIBZSTD) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT)
+
+install-includes:
+	@echo Installing includes
+	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(INCLUDEDIR)/
+	$(Q)$(INSTALL_DATA) zstd.h $(DESTDIR)$(INCLUDEDIR)
+	$(Q)$(INSTALL_DATA) common/zstd_errors.h $(DESTDIR)$(INCLUDEDIR)
+	$(Q)$(INSTALL_DATA) deprecated/zbuff.h $(DESTDIR)$(INCLUDEDIR)     # prototypes generate deprecation warnings
+	$(Q)$(INSTALL_DATA) dictBuilder/zdict.h $(DESTDIR)$(INCLUDEDIR)
+
+uninstall:
+	$(Q)$(RM) $(DESTDIR)$(LIBDIR)/libzstd.a
+	$(Q)$(RM) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT)
+	$(Q)$(RM) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT_MAJOR)
+	$(Q)$(RM) $(DESTDIR)$(LIBDIR)/$(LIBZSTD)
+	$(Q)$(RM) $(DESTDIR)$(PKGCONFIGDIR)/libzstd.pc
+	$(Q)$(RM) $(DESTDIR)$(INCLUDEDIR)/zstd.h
+	$(Q)$(RM) $(DESTDIR)$(INCLUDEDIR)/zstd_errors.h
+	$(Q)$(RM) $(DESTDIR)$(INCLUDEDIR)/zbuff.h   # Deprecated streaming functions
+	$(Q)$(RM) $(DESTDIR)$(INCLUDEDIR)/zdict.h
+	@echo zstd libraries successfully uninstalled
+
+endif