Adding upstream version 0.2.0.upstream/0.2.0

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

6 files changed, 422 insertions, 0 deletions

diff --git a/m4/ax_append_flag.m4 b/m4/ax_append_flag.m4
new file mode 100644
index 0000000..dd6d8b6
--- /dev/null
+++ b/m4/ax_append_flag.m4
@@ -0,0 +1,50 @@
+# ===========================================================================
+#      https://www.gnu.org/software/autoconf-archive/ax_append_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
+#
+# DESCRIPTION
+#
+#   FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
+#   added in between.
+#
+#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
+#   CFLAGS) is used.  FLAGS-VARIABLE is not changed if it already contains
+#   FLAG.  If FLAGS-VARIABLE is unset in the shell, it is set to exactly
+#   FLAG.
+#
+#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved.  This file is offered as-is, without any
+#   warranty.
+
+#serial 8
+
+AC_DEFUN([AX_APPEND_FLAG],
+[dnl
+AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
+AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
+AS_VAR_SET_IF(FLAGS,[
+  AS_CASE([" AS_VAR_GET(FLAGS) "],
+    [*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
+    [
+     AS_VAR_APPEND(FLAGS,[" $1"])
+     AC_RUN_LOG([: FLAGS="$FLAGS"])
+    ])
+  ],
+  [
+  AS_VAR_SET(FLAGS,[$1])
+  AC_RUN_LOG([: FLAGS="$FLAGS"])
+  ])
+AS_VAR_POPDEF([FLAGS])dnl
+])dnl AX_APPEND_FLAG
diff --git a/m4/ax_cflags_warn_all.m4 b/m4/ax_cflags_warn_all.m4
new file mode 100644
index 0000000..9235a18
--- /dev/null
+++ b/m4/ax_cflags_warn_all.m4
@@ -0,0 +1,158 @@
+# ===========================================================================
+#    https://www.gnu.org/software/autoconf-archive/ax_cflags_warn_all.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CFLAGS_WARN_ALL   [(shellvar[, default[, action-if-found[, action-if-not-found]]])]
+#   AX_CXXFLAGS_WARN_ALL [(shellvar[, default[, action-if-found[, action-if-not-found]]])]
+#   AX_FCFLAGS_WARN_ALL  [(shellvar[, default[, action-if-found[, action-if-not-found]]])]
+#
+# DESCRIPTION
+#
+#   Specify compiler options that enable most reasonable warnings.  For the
+#   GNU Compiler Collection (GCC), for example, it will be "-Wall".  The
+#   result is added to shellvar, one of CFLAGS, CXXFLAGS or FCFLAGS if the
+#   first parameter is not specified.
+#
+#   Each of these macros accepts the following optional arguments:
+#
+#     - $1 - shellvar
+#         shell variable to use (CFLAGS, CXXFLAGS or FCFLAGS if not
+#         specified, depending on macro)
+#
+#     - $2 - default
+#         value to use for flags if compiler vendor cannot be determined (by
+#         default, "")
+#
+#     - $3 - action-if-found
+#         action to take if the compiler vendor has been successfully
+#         determined (by default, add the appropriate compiler flags to
+#         shellvar)
+#
+#     - $4 - action-if-not-found
+#         action to take if the compiler vendor has not been determined or
+#         is unknown (by default, add the default flags, or "" if not
+#         specified, to shellvar)
+#
+#   These macros use AX_COMPILER_VENDOR to determine which flags should be
+#   returned for a given compiler.  Not all compilers currently have flags
+#   defined for them; patches are welcome.  If need be, compiler flags may
+#   be made language-dependent: use a construct like the following:
+#
+#     [vendor_name], [m4_if(_AC_LANG_PREFIX,[C],   VAR="--relevant-c-flags",dnl
+#                     m4_if(_AC_LANG_PREFIX,[CXX], VAR="--relevant-c++-flags",dnl
+#                     m4_if(_AC_LANG_PREFIX,[FC],  VAR="--relevant-fortran-flags",dnl
+#                     VAR="$2"; FOUND="no")))],
+#
+#   Note: These macros also depend on AX_PREPEND_FLAG.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2010 Rhys Ulerich <rhys.ulerich@gmail.com>
+#   Copyright (c) 2018 John Zaitseff <J.Zaitseff@zap.org.au>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <https://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 25
+
+AC_DEFUN([AX_FLAGS_WARN_ALL], [
+    AX_REQUIRE_DEFINED([AX_PREPEND_FLAG])dnl
+    AC_REQUIRE([AX_COMPILER_VENDOR])dnl
+
+    AS_VAR_PUSHDEF([FLAGS], [m4_default($1,_AC_LANG_PREFIX[]FLAGS)])dnl
+    AS_VAR_PUSHDEF([VAR],   [ac_cv_[]_AC_LANG_ABBREV[]flags_warn_all])dnl
+    AS_VAR_PUSHDEF([FOUND], [ac_save_[]_AC_LANG_ABBREV[]flags_warn_all_found])dnl
+
+    AC_CACHE_CHECK([FLAGS for most reasonable warnings], VAR, [
+	VAR=""
+	FOUND="yes"
+	dnl  Cases are listed in the order found in ax_compiler_vendor.m4
+	AS_CASE("$ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor",
+	    [intel],		[VAR="-w2"],
+	    [ibm],		[VAR="-qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd"],
+	    [pathscale],	[],
+	    [clang],		[VAR="-Wall"],
+	    [cray],		[VAR="-h msglevel 2"],
+	    [fujitsu],		[],
+	    [sdcc],		[],
+	    [sx],		[VAR="-pvctl[,]fullmsg"],
+	    [portland],		[],
+	    [gnu],		[VAR="-Wall"],
+	    [sun],		[VAR="-v"],
+	    [hp],		[VAR="+w1"],
+	    [dec],		[VAR="-verbose -w0 -warnprotos"],
+	    [borland],		[],
+	    [comeau],		[],
+	    [kai],		[],
+	    [lcc],		[],
+	    [sgi],		[VAR="-fullwarn"],
+	    [microsoft],	[],
+	    [metrowerks],	[],
+	    [watcom],		[],
+	    [tcc],		[],
+	    [unknown],		[
+				    VAR="$2"
+				    FOUND="no"
+				],
+				[
+				    AC_MSG_WARN([Unknown compiler vendor returned by [AX_COMPILER_VENDOR]])
+				    VAR="$2"
+				    FOUND="no"
+				]
+	)
+
+	AS_IF([test "x$FOUND" = "xyes"], [dnl
+	    m4_default($3, [AS_IF([test "x$VAR" != "x"], [AX_PREPEND_FLAG([$VAR], [FLAGS])])])
+	], [dnl
+	    m4_default($4, [m4_ifval($2, [AX_PREPEND_FLAG([$VAR], [FLAGS])], [true])])
+	])dnl
+    ])dnl
+
+    AS_VAR_POPDEF([FOUND])dnl
+    AS_VAR_POPDEF([VAR])dnl
+    AS_VAR_POPDEF([FLAGS])dnl
+])dnl AX_FLAGS_WARN_ALL
+
+AC_DEFUN([AX_CFLAGS_WARN_ALL], [dnl
+    AC_LANG_PUSH([C])
+    AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
+    AC_LANG_POP([C])
+])dnl
+
+AC_DEFUN([AX_CXXFLAGS_WARN_ALL], [dnl
+    AC_LANG_PUSH([C++])
+    AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
+    AC_LANG_POP([C++])
+])dnl
+
+AC_DEFUN([AX_FCFLAGS_WARN_ALL], [dnl
+    AC_LANG_PUSH([Fortran])
+    AX_FLAGS_WARN_ALL([$1], [$2], [$3], [$4])
+    AC_LANG_POP([Fortran])
+])dnl
diff --git a/m4/ax_compiler_vendor.m4 b/m4/ax_compiler_vendor.m4
new file mode 100644
index 0000000..f06e865
--- /dev/null
+++ b/m4/ax_compiler_vendor.m4
@@ -0,0 +1,117 @@
+# ===========================================================================
+#    https://www.gnu.org/software/autoconf-archive/ax_compiler_vendor.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_COMPILER_VENDOR
+#
+# DESCRIPTION
+#
+#   Determine the vendor of the C, C++ or Fortran compiler.  The vendor is
+#   returned in the cache variable $ax_cv_c_compiler_vendor for C,
+#   $ax_cv_cxx_compiler_vendor for C++ or $ax_cv_fc_compiler_vendor for
+#   (modern) Fortran.  The value is one of "intel", "ibm", "pathscale",
+#   "clang" (LLVM), "cray", "fujitsu", "sdcc", "sx", "portland" (PGI), "gnu"
+#   (GCC), "sun" (Oracle Developer Studio), "hp", "dec", "borland",
+#   "comeau", "kai", "lcc", "sgi", "microsoft", "metrowerks", "watcom",
+#   "tcc" (Tiny CC) or "unknown" (if the compiler cannot be determined).
+#
+#   To check for a Fortran compiler, you must first call AC_FC_PP_SRCEXT
+#   with an appropriate preprocessor-enabled extension.  For example:
+#
+#     AC_LANG_PUSH([Fortran])
+#     AC_PROG_FC
+#     AC_FC_PP_SRCEXT([F])
+#     AX_COMPILER_VENDOR
+#     AC_LANG_POP([Fortran])
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
+#   Copyright (c) 2008 Matteo Frigo
+#   Copyright (c) 2018-19 John Zaitseff <J.Zaitseff@zap.org.au>
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <https://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 30
+
+AC_DEFUN([AX_COMPILER_VENDOR], [dnl
+    AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor, [dnl
+	dnl  If you modify this list of vendors, please add similar support
+	dnl  to ax_compiler_version.m4 if at all possible.
+	dnl
+	dnl  Note: Do NOT check for GCC first since some other compilers
+	dnl  define __GNUC__ to remain compatible with it.  Compilers that
+	dnl  are very slow to start (such as Intel) are listed first.
+
+	vendors="
+		intel:		__ICC,__ECC,__INTEL_COMPILER
+		ibm:		__xlc__,__xlC__,__IBMC__,__IBMCPP__,__ibmxl__
+		pathscale:	__PATHCC__,__PATHSCALE__
+		clang:		__clang__
+		cray:		_CRAYC
+		fujitsu:	__FUJITSU
+		sdcc:		SDCC,__SDCC
+		sx:		_SX
+		portland:	__PGI
+		gnu:		__GNUC__
+		sun:		__SUNPRO_C,__SUNPRO_CC,__SUNPRO_F90,__SUNPRO_F95
+		hp:		__HP_cc,__HP_aCC
+		dec:		__DECC,__DECCXX,__DECC_VER,__DECCXX_VER
+		borland:	__BORLANDC__,__CODEGEARC__,__TURBOC__
+		comeau:		__COMO__
+		kai:		__KCC
+		lcc:		__LCC__
+		sgi:		__sgi,sgi
+		microsoft:	_MSC_VER
+		metrowerks:	__MWERKS__
+		watcom:		__WATCOMC__
+		tcc:		__TINYC__
+		unknown:	UNKNOWN
+	"
+	for ventest in $vendors; do
+	    case $ventest in
+		*:)
+		    vendor=$ventest
+		    continue
+		    ;;
+		*)
+		    vencpp="defined("`echo $ventest | sed 's/,/) || defined(/g'`")"
+		    ;;
+	    esac
+
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if !($vencpp)
+      thisisanerror;
+#endif
+	    ]])], [break])
+	done
+
+	ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=`echo $vendor | cut -d: -f1`
+    ])
+])dnl
diff --git a/m4/ax_prepend_flag.m4 b/m4/ax_prepend_flag.m4
new file mode 100644
index 0000000..adac8c5
--- /dev/null
+++ b/m4/ax_prepend_flag.m4
@@ -0,0 +1,51 @@
+# ===========================================================================
+#     https://www.gnu.org/software/autoconf-archive/ax_prepend_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PREPEND_FLAG(FLAG, [FLAGS-VARIABLE])
+#
+# DESCRIPTION
+#
+#   FLAG is added to the front of the FLAGS-VARIABLE shell variable, with a
+#   space added in between.
+#
+#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
+#   CFLAGS) is used.  FLAGS-VARIABLE is not changed if it already contains
+#   FLAG.  If FLAGS-VARIABLE is unset in the shell, it is set to exactly
+#   FLAG.
+#
+#   NOTE: Implementation based on AX_APPEND_FLAG.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#   Copyright (c) 2018 John Zaitseff <J.Zaitseff@zap.org.au>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved.  This file is offered as-is, without any
+#   warranty.
+
+#serial 2
+
+AC_DEFUN([AX_PREPEND_FLAG],
+[dnl
+AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
+AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
+AS_VAR_SET_IF(FLAGS,[
+  AS_CASE([" AS_VAR_GET(FLAGS) "],
+    [*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
+    [
+     FLAGS="$1 $FLAGS"
+     AC_RUN_LOG([: FLAGS="$FLAGS"])
+    ])
+  ],
+  [
+  AS_VAR_SET(FLAGS,[$1])
+  AC_RUN_LOG([: FLAGS="$FLAGS"])
+  ])
+AS_VAR_POPDEF([FLAGS])dnl
+])dnl AX_PREPEND_FLAG
diff --git a/m4/ax_require_defined.m4 b/m4/ax_require_defined.m4
new file mode 100644
index 0000000..17c3eab
--- /dev/null
+++ b/m4/ax_require_defined.m4
@@ -0,0 +1,37 @@
+# ===========================================================================
+#    https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_REQUIRE_DEFINED(MACRO)
+#
+# DESCRIPTION
+#
+#   AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
+#   been defined and thus are available for use.  This avoids random issues
+#   where a macro isn't expanded.  Instead the configure script emits a
+#   non-fatal:
+#
+#     ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
+#
+#   It's like AC_REQUIRE except it doesn't expand the required macro.
+#
+#   Here's an example:
+#
+#     AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
+#
+# LICENSE
+#
+#   Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 2
+
+AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
+  m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
+])dnl AX_REQUIRE_DEFINED
diff --git a/m4/dl.sh b/m4/dl.sh
new file mode 100755
index 0000000..1d8d9f7
--- /dev/null
+++ b/m4/dl.sh
@@ -0,0 +1,9 @@
+#!/bin/sh -e
+
+m4_files="ax_prepend_flag.m4 ax_append_flag.m4 ax_cflags_warn_all.m4
+ ax_require_defined.m4 ax_compiler_vendor.m4"
+
+for ax in $m4_files; do
+  rm -f "$ax"
+  wget -O "$ax" "http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/$ax"
+done