diff options
Diffstat (limited to 'm4/lib-link.m4')
| -rw-r--r-- | m4/lib-link.m4 | 181 |
1 files changed, 130 insertions, 51 deletions
diff --git a/m4/lib-link.m4 b/m4/lib-link.m4 index 92929193..e3d26fc4 100644 --- a/m4/lib-link.m4 +++ b/m4/lib-link.m4 @@ -1,17 +1,19 @@ -# lib-link.m4 serial 8 (gettext-0.15) -dnl Copyright (C) 2001-2006 Free Software Foundation, Inc. +# lib-link.m4 serial 13 (gettext-0.17) +dnl Copyright (C) 2001-2007 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. -AC_PREREQ(2.50) +AC_PREREQ(2.54) dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and dnl the libraries corresponding to explicit and implicit dependencies. dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and dnl augments the CPPFLAGS variable. +dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname +dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. AC_DEFUN([AC_LIB_LINKFLAGS], [ AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) @@ -24,13 +26,16 @@ AC_DEFUN([AC_LIB_LINKFLAGS], ac_cv_lib[]Name[]_libs="$LIB[]NAME" ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME" ac_cv_lib[]Name[]_cppflags="$INC[]NAME" + ac_cv_lib[]Name[]_prefix="$LIB[]NAME[]_PREFIX" ]) LIB[]NAME="$ac_cv_lib[]Name[]_libs" LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs" INC[]NAME="$ac_cv_lib[]Name[]_cppflags" + LIB[]NAME[]_PREFIX="$ac_cv_lib[]Name[]_prefix" AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) AC_SUBST([LIB]NAME) AC_SUBST([LTLIB]NAME) + AC_SUBST([LIB]NAME[_PREFIX]) dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the dnl results of this search when this library appears as a dependency. HAVE_LIB[]NAME=yes @@ -46,6 +51,8 @@ dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty. +dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname +dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. AC_DEFUN([AC_LIB_HAVE_LINKFLAGS], [ AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) @@ -82,17 +89,23 @@ AC_DEFUN([AC_LIB_HAVE_LINKFLAGS], CPPFLAGS="$ac_save_CPPFLAGS" LIB[]NAME= LTLIB[]NAME= + LIB[]NAME[]_PREFIX= fi AC_SUBST([HAVE_LIB]NAME) AC_SUBST([LIB]NAME) AC_SUBST([LTLIB]NAME) + AC_SUBST([LIB]NAME[_PREFIX]) undefine([Name]) undefine([NAME]) ]) dnl Determine the platform dependent parameters needed to use rpath: -dnl libext, shlibext, hardcode_libdir_flag_spec, hardcode_libdir_separator, -dnl hardcode_direct, hardcode_minus_L. +dnl acl_libext, +dnl acl_shlibext, +dnl acl_hardcode_libdir_flag_spec, +dnl acl_hardcode_libdir_separator, +dnl acl_hardcode_direct, +dnl acl_hardcode_minus_L. AC_DEFUN([AC_LIB_RPATH], [ dnl Tell automake >= 1.10 to complain if config.rpath is missing. @@ -109,12 +122,14 @@ AC_DEFUN([AC_LIB_RPATH], acl_cv_rpath=done ]) wl="$acl_cv_wl" - libext="$acl_cv_libext" - shlibext="$acl_cv_shlibext" - hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" - hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" - hardcode_direct="$acl_cv_hardcode_direct" - hardcode_minus_L="$acl_cv_hardcode_minus_L" + acl_libext="$acl_cv_libext" + acl_shlibext="$acl_cv_shlibext" + acl_libname_spec="$acl_cv_libname_spec" + acl_library_names_spec="$acl_cv_library_names_spec" + acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" + acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" + acl_hardcode_direct="$acl_cv_hardcode_direct" + acl_hardcode_minus_L="$acl_cv_hardcode_minus_L" dnl Determine whether the user wants rpath handling at all. AC_ARG_ENABLE(rpath, [ --disable-rpath do not hardcode runtime library paths], @@ -124,20 +139,24 @@ AC_DEFUN([AC_LIB_RPATH], dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and dnl the libraries corresponding to explicit and implicit dependencies. dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables. +dnl Also, sets the LIB${NAME}_PREFIX variable to nonempty if libname was found +dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem. AC_DEFUN([AC_LIB_LINKFLAGS_BODY], [ AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) + dnl Autoconf >= 2.61 supports dots in --with options. + define([N_A_M_E],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[translit([$1],[.],[_])],[$1])]) dnl By default, look in $includedir and $libdir. use_additional=yes AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" ]) - AC_LIB_ARG_WITH([lib$1-prefix], -[ --with-lib$1-prefix[=DIR] search for lib$1 in DIR/include and DIR/lib - --without-lib$1-prefix don't search for lib$1 in includedir and libdir], + AC_LIB_ARG_WITH([lib]N_A_M_E[-prefix], +[ --with-lib]N_A_M_E[-prefix[=DIR] search for lib$1 in DIR/include and DIR/lib + --without-lib]N_A_M_E[-prefix don't search for lib$1 in includedir and libdir], [ if test "X$withval" = "Xno"; then use_additional=no @@ -158,6 +177,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], LIB[]NAME= LTLIB[]NAME= INC[]NAME= + LIB[]NAME[]_PREFIX= rpathdirs= ltrpathdirs= names_already_handled= @@ -197,22 +217,55 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], found_la= found_so= found_a= + eval libname=\"$acl_libname_spec\" # typically: libname=lib$name + if test -n "$acl_shlibext"; then + shrext=".$acl_shlibext" # typically: shrext=.so + else + shrext= + fi if test $use_additional = yes; then - if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext"; then - found_dir="$additional_libdir" - found_so="$additional_libdir/lib$name.$shlibext" - if test -f "$additional_libdir/lib$name.la"; then - found_la="$additional_libdir/lib$name.la" - fi - else - if test -f "$additional_libdir/lib$name.$libext"; then - found_dir="$additional_libdir" - found_a="$additional_libdir/lib$name.$libext" - if test -f "$additional_libdir/lib$name.la"; then - found_la="$additional_libdir/lib$name.la" + dir="$additional_libdir" + dnl The same code as in the loop below: + dnl First look for a shared library. + if test -n "$acl_shlibext"; then + if test -f "$dir/$libname$shrext"; then + found_dir="$dir" + found_so="$dir/$libname$shrext" + else + if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then + ver=`(cd "$dir" && \ + for f in "$libname$shrext".*; do echo "$f"; done \ + | sed -e "s,^$libname$shrext\\\\.,," \ + | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ + | sed 1q ) 2>/dev/null` + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then + found_dir="$dir" + found_so="$dir/$libname$shrext.$ver" + fi + else + eval library_names=\"$acl_library_names_spec\" + for f in $library_names; do + if test -f "$dir/$f"; then + found_dir="$dir" + found_so="$dir/$f" + break + fi + done fi fi fi + dnl Then look for a static library. + if test "X$found_dir" = "X"; then + if test -f "$dir/$libname.$acl_libext"; then + found_dir="$dir" + found_a="$dir/$libname.$acl_libext" + fi + fi + if test "X$found_dir" != "X"; then + if test -f "$dir/$libname.la"; then + found_la="$dir/$libname.la" + fi + fi fi if test "X$found_dir" = "X"; then for x in $LDFLAGS $LTLIB[]NAME; do @@ -220,21 +273,46 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], case "$x" in -L*) dir=`echo "X$x" | sed -e 's/^X-L//'` - if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext"; then - found_dir="$dir" - found_so="$dir/lib$name.$shlibext" - if test -f "$dir/lib$name.la"; then - found_la="$dir/lib$name.la" - fi - else - if test -f "$dir/lib$name.$libext"; then + dnl First look for a shared library. + if test -n "$acl_shlibext"; then + if test -f "$dir/$libname$shrext"; then found_dir="$dir" - found_a="$dir/lib$name.$libext" - if test -f "$dir/lib$name.la"; then - found_la="$dir/lib$name.la" + found_so="$dir/$libname$shrext" + else + if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then + ver=`(cd "$dir" && \ + for f in "$libname$shrext".*; do echo "$f"; done \ + | sed -e "s,^$libname$shrext\\\\.,," \ + | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ + | sed 1q ) 2>/dev/null` + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then + found_dir="$dir" + found_so="$dir/$libname$shrext.$ver" + fi + else + eval library_names=\"$acl_library_names_spec\" + for f in $library_names; do + if test -f "$dir/$f"; then + found_dir="$dir" + found_so="$dir/$f" + break + fi + done fi fi fi + dnl Then look for a static library. + if test "X$found_dir" = "X"; then + if test -f "$dir/$libname.$acl_libext"; then + found_dir="$dir" + found_a="$dir/$libname.$acl_libext" + fi + fi + if test "X$found_dir" != "X"; then + if test -f "$dir/$libname.la"; then + found_la="$dir/$libname.la" + fi + fi ;; esac if test "X$found_dir" != "X"; then @@ -268,12 +346,12 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], ltrpathdirs="$ltrpathdirs $found_dir" fi dnl The hardcoding into $LIBNAME is system dependent. - if test "$hardcode_direct" = yes; then + if test "$acl_hardcode_direct" = yes; then dnl Using DIR/libNAME.so during linking hardcodes DIR into the dnl resulting binary. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else - if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then + if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then dnl Use an explicit option to hardcode DIR into the resulting dnl binary. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" @@ -304,13 +382,13 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], if test -z "$haveit"; then LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" fi - if test "$hardcode_minus_L" != no; then + if test "$acl_hardcode_minus_L" != no; then dnl FIXME: Not sure whether we should use dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" dnl here. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else - dnl We cannot use $hardcode_runpath_var and LD_RUN_PATH + dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH dnl here, because this doesn't fit in flags passed to the dnl compiler. So give up. No hardcoding. This affects only dnl very old systems. @@ -337,6 +415,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], case "$found_dir" in */$acl_libdirstem | */$acl_libdirstem/) basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` + LIB[]NAME[]_PREFIX="$basedir" additional_includedir="$basedir/include" ;; esac @@ -498,18 +577,18 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], done done if test "X$rpathdirs" != "X"; then - if test -n "$hardcode_libdir_separator"; then + if test -n "$acl_hardcode_libdir_separator"; then dnl Weird platform: only the last -rpath option counts, the user must dnl pass all path elements in one option. We can arrange that for a dnl single library, but not when more than one $LIBNAMEs are used. alldirs= for found_dir in $rpathdirs; do - alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir" + alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" done - dnl Note: hardcode_libdir_flag_spec uses $libdir and $wl. + dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. acl_save_libdir="$libdir" libdir="$alldirs" - eval flag=\"$hardcode_libdir_flag_spec\" + eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" else @@ -517,7 +596,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], for found_dir in $rpathdirs; do acl_save_libdir="$libdir" libdir="$found_dir" - eval flag=\"$hardcode_libdir_flag_spec\" + eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" done @@ -566,7 +645,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) $1= if test "$enable_rpath" != no; then - if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then + if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then dnl Use an explicit option to hardcode directories into the resulting dnl binary. rpathdirs= @@ -600,16 +679,16 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], done else dnl The linker is used for linking directly. - if test -n "$hardcode_libdir_separator"; then + if test -n "$acl_hardcode_libdir_separator"; then dnl Weird platform: only the last -rpath option counts, the user dnl must pass all path elements in one option. alldirs= for dir in $rpathdirs; do - alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$dir" + alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" done acl_save_libdir="$libdir" libdir="$alldirs" - eval flag=\"$hardcode_libdir_flag_spec\" + eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" $1="$flag" else @@ -617,7 +696,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], for dir in $rpathdirs; do acl_save_libdir="$libdir" libdir="$dir" - eval flag=\"$hardcode_libdir_flag_spec\" + eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" $1="${$1}${$1:+ }$flag" done |