diff options
Diffstat (limited to 'gnulib-m4/lib-link.m4')
| -rw-r--r-- | gnulib-m4/lib-link.m4 | 184 |
1 files changed, 110 insertions, 74 deletions
diff --git a/gnulib-m4/lib-link.m4 b/gnulib-m4/lib-link.m4 index df77db98..ed5186af 100644 --- a/gnulib-m4/lib-link.m4 +++ b/gnulib-m4/lib-link.m4 @@ -1,12 +1,12 @@ -# lib-link.m4 serial 26 (gettext-0.18.2) -dnl Copyright (C) 2001-2018 Free Software Foundation, Inc. +# lib-link.m4 serial 32 +dnl Copyright (C) 2001-2022 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([2.54]) +AC_PREREQ([2.61]) dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and dnl the libraries corresponding to explicit and implicit dependencies. @@ -124,8 +124,8 @@ 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. - m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])]) + dnl Complain if config.rpath is missing. + AC_REQUIRE_AUX_FILE([config.rpath]) AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host @@ -187,17 +187,17 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])]) - dnl Autoconf >= 2.61 supports dots in --with options. - pushdef([P_A_C_K],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[m4_translit(PACK,[.],[_])],PACK)]) dnl By default, look in $includedir and $libdir. use_additional=yes AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" ]) - AC_ARG_WITH(P_A_C_K[-prefix], -[[ --with-]]P_A_C_K[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib - --without-]]P_A_C_K[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], + AC_ARG_WITH(PACK[-prefix], +[[ --with-]]PACK[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib + --without-]]PACK[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], [ if test "X$withval" = "Xno"; then use_additional=no @@ -206,17 +206,23 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" + eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" + eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" ]) else additional_includedir="$withval/include" additional_libdir="$withval/$acl_libdirstem" - if test "$acl_libdirstem2" != "$acl_libdirstem" \ - && test ! -d "$withval/$acl_libdirstem"; then - additional_libdir="$withval/$acl_libdirstem2" - fi + additional_libdir2="$withval/$acl_libdirstem2" + additional_libdir3="$withval/$acl_libdirstem3" fi fi ]) + if test "X$additional_libdir2" = "X$additional_libdir"; then + additional_libdir2= + fi + if test "X$additional_libdir3" = "X$additional_libdir"; then + additional_libdir3= + fi dnl Search the library and its dependencies in $additional_libdir and dnl $LDFLAGS. Using breadth-first-seach. LIB[]NAME= @@ -272,48 +278,54 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], shrext= fi if test $use_additional = yes; then - dir="$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" + for additional_libdir_variable in additional_libdir additional_libdir2 additional_libdir3; do + if test "X$found_dir" = "X"; then + eval dir=\$$additional_libdir_variable + if test -n "$dir"; then + dnl The same code as in the loop below: + dnl First look for a shared library. + if test -n "$acl_shlibext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$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.$ver" && acl_is_expected_elfclass < "$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/$f" && acl_is_expected_elfclass < "$dir/$f"; then + found_dir="$dir" + found_so="$dir/$f" + break + fi + done + fi + fi fi - else - eval library_names=\"$acl_library_names_spec\" - for f in $library_names; do - if test -f "$dir/$f"; then + dnl Then look for a static library. + if test "X$found_dir" = "X"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then found_dir="$dir" - found_so="$dir/$f" - break + found_a="$dir/$libname.$acl_libext" fi - done + fi + if test "X$found_dir" != "X"; then + if test -f "$dir/$libname.la"; then + found_la="$dir/$libname.la" + fi + fi fi fi - fi - dnl Then look for a static library. - if test "X$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 + done fi if test "X$found_dir" = "X"; then for x in $LDFLAGS $LTLIB[]NAME; do @@ -323,7 +335,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], dir=`echo "X$x" | sed -e 's/^X-L//'` dnl First look for a shared library. if test -n "$acl_shlibext"; then - if test -f "$dir/$libname$shrext"; then + if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then found_dir="$dir" found_so="$dir/$libname$shrext" else @@ -333,14 +345,14 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], | 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.$ver"; then + if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$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/$f"; then + if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then found_dir="$dir" found_so="$dir/$f" break @@ -351,7 +363,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], fi dnl Then look for a static library. if test "X$found_dir" = "X"; then - if test -f "$dir/$libname.$acl_libext"; then + if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then found_dir="$dir" found_a="$dir/$libname.$acl_libext" fi @@ -377,7 +389,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], dnl standard /usr/lib. if test "$enable_rpath" = no \ || test "X$found_dir" = "X/usr/$acl_libdirstem" \ - || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then + || test "X$found_dir" = "X/usr/$acl_libdirstem2" \ + || test "X$found_dir" = "X/usr/$acl_libdirstem3"; then dnl No hardcoding is needed. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else @@ -477,6 +490,13 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], fi additional_includedir="$basedir/include" ;; + */$acl_libdirstem3 | */$acl_libdirstem3/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem3/"'*$,,'` + if test "$name" = '$1'; then + LIB[]NAME[]_PREFIX="$basedir" + fi + additional_includedir="$basedir/include" + ;; esac if test "X$additional_includedir" != "X"; then dnl Potentially add $additional_includedir to $INCNAME. @@ -527,19 +547,21 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], for dep in $dependency_libs; do case "$dep" in -L*) - additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` - dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. + dependency_libdir=`echo "X$dep" | sed -e 's/^X-L//'` + dnl Potentially add $dependency_libdir to $LIBNAME and $LTLIBNAME. dnl But don't add it dnl 1. if it's the standard /usr/lib, dnl 2. if it's /usr/local/lib and we are using GCC on Linux, dnl 3. if it's already present in $LDFLAGS or the already dnl constructed $LIBNAME, dnl 4. if it doesn't exist as a directory. - if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \ - && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then + if test "X$dependency_libdir" != "X/usr/$acl_libdirstem" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem2" \ + && test "X$dependency_libdir" != "X/usr/$acl_libdirstem3"; then haveit= - if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \ - || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then + if test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem2" \ + || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem3"; then if test -n "$GCC"; then case $host_os in linux* | gnu* | k*bsd*-gnu) haveit=yes;; @@ -550,29 +572,29 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], haveit= for x in $LDFLAGS $LIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-L$additional_libdir"; then + if test "X$x" = "X-L$dependency_libdir"; then haveit=yes break fi done if test -z "$haveit"; then - if test -d "$additional_libdir"; then - dnl Really add $additional_libdir to $LIBNAME. - LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LIBNAME. + LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$dependency_libdir" fi fi haveit= for x in $LDFLAGS $LTLIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-L$additional_libdir"; then + if test "X$x" = "X-L$dependency_libdir"; then haveit=yes break fi done if test -z "$haveit"; then - if test -d "$additional_libdir"; then - dnl Really add $additional_libdir to $LTLIBNAME. - LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" + if test -d "$dependency_libdir"; then + dnl Really add $dependency_libdir to $LTLIBNAME. + LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$dependency_libdir" fi fi fi @@ -609,7 +631,20 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], ;; -l*) dnl Handle this in the next round. - names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` + dnl But on GNU systems, ignore -lc options, because + dnl - linking with libc is the default anyway, + dnl - linking with libc.a may produce an error + dnl "/usr/bin/ld: dynamic STT_GNU_IFUNC symbol `strcmp' with pointer equality in `/usr/lib/libc.a(strcmp.o)' can not be used when making an executable; recompile with -fPIE and relink with -pie" + dnl or may produce an executable that always crashes, see + dnl <https://lists.gnu.org/archive/html/grep-devel/2020-09/msg00052.html>. + dep=`echo "X$dep" | sed -e 's/^X-l//'` + if test "X$dep" != Xc \ + || case $host_os in + linux* | gnu* | k*bsd*-gnu) false ;; + *) true ;; + esac; then + names_next_round="$names_next_round $dep" + fi ;; *.la) dnl Handle this in the next round. Throw away the .la's @@ -670,7 +705,6 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY], LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" done fi - popdef([P_A_C_K]) popdef([PACKLIBS]) popdef([PACKUP]) popdef([PACK]) @@ -721,7 +755,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], dir="$next" dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ - && test "X$dir" != "X/usr/$acl_libdirstem2"; then + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then rpathdirs="$rpathdirs $dir" fi next= @@ -731,7 +766,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ - && test "X$dir" != "X/usr/$acl_libdirstem2"; then + && test "X$dir" != "X/usr/$acl_libdirstem2" \ + && test "X$dir" != "X/usr/$acl_libdirstem3"; then rpathdirs="$rpathdirs $dir" fi next= ;; |