mirror of
https://gitlab.gnome.org/GNOME/libxslt
synced 2025-08-05 23:35:48 +03:00
autotools: Link with --undefined-version
This commit is contained in:
Nick Wellnhofer
3
.gitignore
vendored
3
.gitignore
vendored
@@ -36,7 +36,8 @@ libxslt.spec
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libxslt.spec.in.orig
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libxslt/xsltconfig.h
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ltmain.sh
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m4/
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m4/libtool*
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m4/lt*
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missing
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py-compile
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python/gen_prog
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@@ -95,7 +95,11 @@ dnl
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AC_MSG_CHECKING([how to pass version script to the linker ($LD)])
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VERSION_SCRIPT_FLAGS=none
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if $LD --help 2>&1 | grep "version-script" >/dev/null 2>/dev/null; then
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VERSION_SCRIPT_FLAGS=-Wl,--version-script=
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dnl lld 16 defaults to --no-undefined-version but the version script
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dnl can contain symbols disabled by configuration options.
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VERSION_SCRIPT_FLAGS=''
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AX_APPEND_LINK_FLAGS([-Wl,--undefined-version], [VERSION_SCRIPT_FLAGS])
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AX_APPEND_FLAG([-Wl,--version-script=], [VERSION_SCRIPT_FLAGS])
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elif $LD --help 2>&1 | grep "M mapfile" >/dev/null 2>/dev/null; then
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VERSION_SCRIPT_FLAGS="-Wl,-M -Wl,"
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fi
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50
m4/ax_append_flag.m4
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50
m4/ax_append_flag.m4
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@@ -0,0 +1,50 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_append_flag.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
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#
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# DESCRIPTION
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#
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# FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
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# added in between.
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#
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# If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
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# CFLAGS) is used. FLAGS-VARIABLE is not changed if it already contains
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# FLAG. If FLAGS-VARIABLE is unset in the shell, it is set to exactly
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# FLAG.
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#
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# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
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#
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# LICENSE
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#
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# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
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# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 8
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AC_DEFUN([AX_APPEND_FLAG],
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[dnl
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AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
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AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
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AS_VAR_SET_IF(FLAGS,[
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AS_CASE([" AS_VAR_GET(FLAGS) "],
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[*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
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[
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AS_VAR_APPEND(FLAGS,[" $1"])
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AC_RUN_LOG([: FLAGS="$FLAGS"])
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])
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],
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[
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AS_VAR_SET(FLAGS,[$1])
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AC_RUN_LOG([: FLAGS="$FLAGS"])
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])
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AS_VAR_POPDEF([FLAGS])dnl
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])dnl AX_APPEND_FLAG
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44
m4/ax_append_link_flags.m4
Normal file
44
m4/ax_append_link_flags.m4
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@@ -0,0 +1,44 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
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#
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# DESCRIPTION
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#
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# For every FLAG1, FLAG2 it is checked whether the linker works with the
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# flag. If it does, the flag is added FLAGS-VARIABLE
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#
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# If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is
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# used. During the check the flag is always added to the linker's flags.
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#
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# If EXTRA-FLAGS is defined, it is added to the linker's default flags
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# when the check is done. The check is thus made with the flags: "LDFLAGS
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# EXTRA-FLAGS FLAG". This can for example be used to force the linker to
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# issue an error when a bad flag is given.
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#
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# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
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#
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# NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG.
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# Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS.
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#
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# LICENSE
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#
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# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 7
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AC_DEFUN([AX_APPEND_LINK_FLAGS],
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[AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
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AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
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for flag in $1; do
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AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3], [$4])
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done
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])dnl AX_APPEND_LINK_FLAGS
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53
m4/ax_check_link_flag.m4
Normal file
53
m4/ax_check_link_flag.m4
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@@ -0,0 +1,53 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
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#
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# DESCRIPTION
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#
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# Check whether the given FLAG works with the linker or gives an error.
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# (Warnings, however, are ignored)
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#
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# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
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# success/failure.
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#
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# If EXTRA-FLAGS is defined, it is added to the linker's default flags
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# when the check is done. The check is thus made with the flags: "LDFLAGS
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# EXTRA-FLAGS FLAG". This can for example be used to force the linker to
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# issue an error when a bad flag is given.
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#
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# INPUT gives an alternative input source to AC_LINK_IFELSE.
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#
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# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
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# macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG.
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#
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# LICENSE
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#
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# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
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# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 6
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AC_DEFUN([AX_CHECK_LINK_FLAG],
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[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
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AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl
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AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [
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ax_check_save_flags=$LDFLAGS
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LDFLAGS="$LDFLAGS $4 $1"
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AC_LINK_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
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[AS_VAR_SET(CACHEVAR,[yes])],
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[AS_VAR_SET(CACHEVAR,[no])])
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LDFLAGS=$ax_check_save_flags])
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AS_VAR_IF(CACHEVAR,yes,
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[m4_default([$2], :)],
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[m4_default([$3], :)])
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AS_VAR_POPDEF([CACHEVAR])dnl
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])dnl AX_CHECK_LINK_FLAGS
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37
m4/ax_require_defined.m4
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37
m4/ax_require_defined.m4
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@@ -0,0 +1,37 @@
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_REQUIRE_DEFINED(MACRO)
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#
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# DESCRIPTION
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#
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# AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
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# been defined and thus are available for use. This avoids random issues
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# where a macro isn't expanded. Instead the configure script emits a
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# non-fatal:
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#
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# ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
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#
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# It's like AC_REQUIRE except it doesn't expand the required macro.
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#
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# Here's an example:
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#
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# AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
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#
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# LICENSE
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#
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# Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 2
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AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
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m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
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])dnl AX_REQUIRE_DEFINED
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