NEWS.stable: log cherry-pick [e446f25]->[c092018] relocatable-shell: Update suggested...

[gnulib.git] / m4 / lib-link.m4

diff --git a/m4/lib-link.m4 b/m4/lib-link.m4
index 1602895..3522d99 100644 (file)
--- a/m4/lib-link.m4
+++ b/m4/lib-link.m4
@@ -1,12 +1,12 @@
-# lib-link.m4 serial 15 (gettext-0.18)
-dnl Copyright (C) 2001-2008 Free Software Foundation, Inc.
+# lib-link.m4 serial 26 (gettext-0.18.2)
+dnl Copyright (C) 2001-2014 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.
 
 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([2.54])

 
 dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
 dnl the libraries corresponding to explicit and implicit dependencies.
 
 dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and
 dnl the libraries corresponding to explicit and implicit dependencies.


@@ -18,9 +18,9 @@ AC_DEFUN([AC_LIB_LINKFLAGS],
 [
   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
   AC_REQUIRE([AC_LIB_RPATH])
 [
   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
   AC_REQUIRE([AC_LIB_RPATH])

-  pushdef([Name],[translit([$1],[./-], [___])])
-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([Name],[m4_translit([$1],[./+-], [____])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])

   AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
     AC_LIB_LINKFLAGS_BODY([$1], [$2])
     ac_cv_lib[]Name[]_libs="$LIB[]NAME"
   AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [
     AC_LIB_LINKFLAGS_BODY([$1], [$2])
     ac_cv_lib[]Name[]_libs="$LIB[]NAME"


@@ -43,12 +43,13 @@ AC_DEFUN([AC_LIB_LINKFLAGS],
   popdef([Name])
 ])
 
   popdef([Name])
 ])
 

-dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode)
+dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode, [missing-message])

 dnl searches for libname and the libraries corresponding to explicit and
 dnl implicit dependencies, together with the specified include files and
 dnl searches for libname and the libraries corresponding to explicit and
 dnl implicit dependencies, together with the specified include files and

-dnl the ability to compile and link the specified testcode. If found, it
-dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and
-dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and
+dnl the ability to compile and link the specified testcode. The missing-message
+dnl defaults to 'no' and may contain additional hints for the user.
+dnl If found, it sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME}
+dnl and LTLIB${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${NAME}_PREFIX variable to nonempty if libname
 dnl #defines HAVE_LIB${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


@@ -57,9 +58,9 @@ AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
 [
   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
   AC_REQUIRE([AC_LIB_RPATH])
 [
   AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
   AC_REQUIRE([AC_LIB_RPATH])

-  pushdef([Name],[translit([$1],[./-], [___])])
-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([Name],[m4_translit([$1],[./+-], [____])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])

 
   dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
   dnl accordingly.
 
   dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME
   dnl accordingly.


@@ -73,13 +74,26 @@ AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
 
   AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
     ac_save_LIBS="$LIBS"
 
   AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
     ac_save_LIBS="$LIBS"

-    LIBS="$LIBS $LIB[]NAME"
-    AC_TRY_LINK([$3], [$4], [ac_cv_lib[]Name=yes], [ac_cv_lib[]Name=no])
+    dnl If $LIB[]NAME contains some -l options, add it to the end of LIBS,
+    dnl because these -l options might require -L options that are present in
+    dnl LIBS. -l options benefit only from the -L options listed before it.
+    dnl Otherwise, add it to the front of LIBS, because it may be a static
+    dnl library that depends on another static library that is present in LIBS.
+    dnl Static libraries benefit only from the static libraries listed after
+    dnl it.
+    case " $LIB[]NAME" in
+      *" -l"*) LIBS="$LIBS $LIB[]NAME" ;;
+      *)       LIBS="$LIB[]NAME $LIBS" ;;
+    esac
+    AC_LINK_IFELSE(
+      [AC_LANG_PROGRAM([[$3]], [[$4]])],
+      [ac_cv_lib[]Name=yes],
+      [ac_cv_lib[]Name='m4_if([$5], [], [no], [[$5]])'])

     LIBS="$ac_save_LIBS"
   ])
   if test "$ac_cv_lib[]Name" = yes; then
     HAVE_LIB[]NAME=yes
     LIBS="$ac_save_LIBS"
   ])
   if test "$ac_cv_lib[]Name" = yes; then
     HAVE_LIB[]NAME=yes

-    AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the $1 library.])
+    AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the lib][$1 library.])

     AC_MSG_CHECKING([how to link with lib[]$1])
     AC_MSG_RESULT([$LIB[]NAME])
   else
     AC_MSG_CHECKING([how to link with lib[]$1])
     AC_MSG_RESULT([$LIB[]NAME])
   else


@@ -102,6 +116,8 @@ AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
 dnl Determine the platform dependent parameters needed to use rpath:
 dnl   acl_libext,
 dnl   acl_shlibext,
 dnl Determine the platform dependent parameters needed to use rpath:
 dnl   acl_libext,
 dnl   acl_shlibext,

+dnl   acl_libname_spec,
+dnl   acl_library_names_spec,

 dnl   acl_hardcode_libdir_flag_spec,
 dnl   acl_hardcode_libdir_separator,
 dnl   acl_hardcode_direct,
 dnl   acl_hardcode_libdir_flag_spec,
 dnl   acl_hardcode_libdir_separator,
 dnl   acl_hardcode_direct,


@@ -114,7 +130,7 @@ AC_DEFUN([AC_LIB_RPATH],
   AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD, $with_gnu_ld
   AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host
   AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
   AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD, $with_gnu_ld
   AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host
   AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir

-  AC_CACHE_CHECK([for shared library run path origin], acl_cv_rpath, [
+  AC_CACHE_CHECK([for shared library run path origin], [acl_cv_rpath], [

     CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
     ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
     . ./conftest.sh
     CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
     ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
     . ./conftest.sh


@@ -131,7 +147,7 @@ AC_DEFUN([AC_LIB_RPATH],
   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.
   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,
+  AC_ARG_ENABLE([rpath],

     [  --disable-rpath         do not hardcode runtime library paths],
     :, enable_rpath=yes)
 ])
     [  --disable-rpath         do not hardcode runtime library paths],
     :, enable_rpath=yes)
 ])


@@ -144,15 +160,15 @@ dnl package. This declaration must occur before an AC_LIB_LINKFLAGS or similar
 dnl macro call that searches for libname.
 AC_DEFUN([AC_LIB_FROMPACKAGE],
 [
 dnl macro call that searches for libname.
 AC_DEFUN([AC_LIB_FROMPACKAGE],
 [

-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])

   define([acl_frompackage_]NAME, [$2])
   popdef([NAME])
   pushdef([PACK],[$2])
   define([acl_frompackage_]NAME, [$2])
   popdef([NAME])
   pushdef([PACK],[$2])

-  pushdef([PACKUP],[translit(PACK,[abcdefghijklmnopqrstuvwxyz./-],
-                                  [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
+                                     [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])

   define([acl_libsinpackage_]PACKUP,
   define([acl_libsinpackage_]PACKUP,

-    m4_ifdef([acl_libsinpackage_]PACKUP, [acl_libsinpackage_]PACKUP[[, ]],)[lib$1])
+    m4_ifdef([acl_libsinpackage_]PACKUP, [m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1])

   popdef([PACKUP])
   popdef([PACK])
 ])
   popdef([PACKUP])
   popdef([PACK])
 ])


@@ -165,14 +181,14 @@ dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem.
 AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
 [
   AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
 AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
 [
   AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])

-  pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
-                                [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
+                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])

   pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])])
   pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])])

-  pushdef([PACKUP],[translit(PACK,[abcdefghijklmnopqrstuvwxyz./-],
-                                  [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
+  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([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],[translit(PACK,[.],[_])],PACK)])
+  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([
   dnl By default, look in $includedir and $libdir.
   use_additional=yes
   AC_LIB_WITH_FINAL_PREFIX([


@@ -194,6 +210,10 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
       else
         additional_includedir="$withval/include"
         additional_libdir="$withval/$acl_libdirstem"
       else
         additional_includedir="$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

       fi
     fi
 ])
       fi
     fi
 ])


@@ -203,6 +223,9 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
   LTLIB[]NAME=
   INC[]NAME=
   LIB[]NAME[]_PREFIX=
   LTLIB[]NAME=
   INC[]NAME=
   LIB[]NAME[]_PREFIX=

+  dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been
+  dnl computed. So it has to be reset here.
+  HAVE_LIB[]NAME=

   rpathdirs=
   ltrpathdirs=
   names_already_handled=
   rpathdirs=
   ltrpathdirs=
   names_already_handled=


@@ -222,7 +245,7 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
         names_already_handled="$names_already_handled $name"
         dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
         dnl or AC_LIB_HAVE_LINKFLAGS call.
         names_already_handled="$names_already_handled $name"
         dnl See if it was already located by an earlier AC_LIB_LINKFLAGS
         dnl or AC_LIB_HAVE_LINKFLAGS call.

-        uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'`
+        uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'`

         eval value=\"\$HAVE_LIB$uppername\"
         if test -n "$value"; then
           if test "$value" = yes; then
         eval value=\"\$HAVE_LIB$uppername\"
         if test -n "$value"; then
           if test "$value" = yes; then


@@ -352,7 +375,9 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
               dnl Linking with a shared library. We attempt to hardcode its
               dnl directory into the executable's runpath, unless it's the
               dnl standard /usr/lib.
               dnl Linking with a shared library. We attempt to hardcode its
               dnl directory into the executable's runpath, unless it's the
               dnl standard /usr/lib.

-              if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/$acl_libdirstem"; then
+              if test "$enable_rpath" = no \
+                 || test "X$found_dir" = "X/usr/$acl_libdirstem" \
+                 || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then

                 dnl No hardcoding is needed.
                 LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
               else
                 dnl No hardcoding is needed.
                 LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so"
               else


@@ -440,7 +465,16 @@ 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,/$acl_libdirstem/"'*$,,'`
             case "$found_dir" in
               */$acl_libdirstem | */$acl_libdirstem/)
                 basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`

-                LIB[]NAME[]_PREFIX="$basedir"
+                if test "$name" = '$1'; then
+                  LIB[]NAME[]_PREFIX="$basedir"
+                fi
+                additional_includedir="$basedir/include"
+                ;;
+              */$acl_libdirstem2 | */$acl_libdirstem2/)
+                basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'`
+                if test "$name" = '$1'; then
+                  LIB[]NAME[]_PREFIX="$basedir"
+                fi

                 additional_includedir="$basedir/include"
                 ;;
             esac
                 additional_includedir="$basedir/include"
                 ;;
             esac


@@ -501,9 +535,11 @@ AC_DEFUN([AC_LIB_LINKFLAGS_BODY],
                     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.
                     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"; then
+                    if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \
+                       && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then

                       haveit=
                       haveit=

-                      if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
+                      if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \
+                         || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then

                         if test -n "$GCC"; then
                           case $host_os in
                             linux* | gnu* | k*bsd*-gnu) haveit=yes;;
                         if test -n "$GCC"; then
                           case $host_os in
                             linux* | gnu* | k*bsd*-gnu) haveit=yes;;


@@ -684,7 +720,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS],
         if test -n "$next"; then
           dir="$next"
           dnl No need to hardcode the standard /usr/lib.
         if test -n "$next"; then
           dir="$next"
           dnl No need to hardcode the standard /usr/lib.

-          if test "X$dir" != "X/usr/$acl_libdirstem"; then
+          if test "X$dir" != "X/usr/$acl_libdirstem" \
+             && test "X$dir" != "X/usr/$acl_libdirstem2"; then

             rpathdirs="$rpathdirs $dir"
           fi
           next=
             rpathdirs="$rpathdirs $dir"
           fi
           next=


@@ -693,7 +730,8 @@ AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS],
             -L) next=yes ;;
             -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'`
                  dnl No need to hardcode the standard /usr/lib.
             -L) next=yes ;;
             -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'`
                  dnl No need to hardcode the standard /usr/lib.

-                 if test "X$dir" != "X/usr/$acl_libdirstem"; then
+                 if test "X$dir" != "X/usr/$acl_libdirstem" \
+                    && test "X$dir" != "X/usr/$acl_libdirstem2"; then

                    rpathdirs="$rpathdirs $dir"
                  fi
                  next= ;;
                    rpathdirs="$rpathdirs $dir"
                  fi
                  next= ;;