-# lib-link.m4 serial 31
-dnl Copyright (C) 2001-2019 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([2.61])
-
-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])
- AC_REQUIRE([AC_LIB_RPATH])
- 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_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
- popdef([NAME])
- popdef([Name])
-])
-
-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 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 was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem.
-AC_DEFUN([AC_LIB_HAVE_LINKFLAGS],
-[
- AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
- AC_REQUIRE([AC_LIB_RPATH])
- 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.
- AC_LIB_LINKFLAGS_BODY([$1], [$2])
-
- dnl Add $INC[]NAME to CPPFLAGS before performing the following checks,
- dnl because if the user has installed lib[]Name and not disabled its use
- dnl via --without-lib[]Name-prefix, he wants to use it.
- ac_save_CPPFLAGS="$CPPFLAGS"
- AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME)
-
- AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [
- ac_save_LIBS="$LIBS"
- 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
- 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
- HAVE_LIB[]NAME=no
- dnl If $LIB[]NAME didn't lead to a usable library, we don't need
- dnl $INC[]NAME either.
- CPPFLAGS="$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])
- popdef([NAME])
- popdef([Name])
-])
-
-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_minus_L.
-AC_DEFUN([AC_LIB_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
- AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
- AC_CACHE_CHECK([for shared library run path origin], [acl_cv_rpath], [
- CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \
- ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh
- . ./conftest.sh
- rm -f ./conftest.sh
- acl_cv_rpath=done
- ])
- wl="$acl_cv_wl"
- 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],
- :, enable_rpath=yes)
-])
-
-dnl AC_LIB_FROMPACKAGE(name, package)
-dnl declares that libname comes from the given package. The configure file
-dnl will then not have a --with-libname-prefix option but a
-dnl --with-package-prefix option. Several libraries can come from the same
-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],
-[
- pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
- [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
- define([acl_frompackage_]NAME, [$2])
- popdef([NAME])
- pushdef([PACK],[$2])
- pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
- [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
- define([acl_libsinpackage_]PACKUP,
- m4_ifdef([acl_libsinpackage_]PACKUP, [m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1])
- popdef([PACKUP])
- popdef([PACK])
-])
-
-dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and
-dnl the libraries corresponding to explicit and implicit dependencies.
-dnl Sets the LIB${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])
- pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-],
- [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
- pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])])
- pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-],
- [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])])
- pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])])
- dnl By default, look in $includedir and $libdir.
- use_additional=yes
- AC_LIB_WITH_FINAL_PREFIX([
- eval additional_includedir=\"$includedir\"
- eval additional_libdir=\"$libdir\"
- eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\"
- eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\"
- ])
- AC_ARG_WITH(PACK[-prefix],
-[[ --with-]]PACK[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib
- --without-]]PACK[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]],
-[
- if test "X$withval" = "Xno"; then
- use_additional=no
- else
- if test "X$withval" = "X"; then
- AC_LIB_WITH_FINAL_PREFIX([
- eval additional_includedir=\"$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"
- 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 $LDFLAGS. Using breadth-first-seach.
- LIB[]NAME=
- LTLIB[]NAME=
- INC[]NAME=
- LIB[]NAME[]_PREFIX=
- dnl HAVE_LIB${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=
- names_next_round='$1 $2'
- while test -n "$names_next_round"; do
- names_this_round="$names_next_round"
- names_next_round=
- for name in $names_this_round; do
- already_handled=
- for n in $names_already_handled; do
- if test "$n" = "$name"; then
- already_handled=yes
- break
- fi
- done
- if test -z "$already_handled"; then
- 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____|'`
- eval value=\"\$HAVE_LIB$uppername\"
- if test -n "$value"; then
- if test "$value" = yes; then
- eval value=\"\$LIB$uppername\"
- test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value"
- eval value=\"\$LTLIB$uppername\"
- test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value"
- else
- dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined
- dnl that this library doesn't exist. So just drop it.
- :
- fi
- else
- dnl Search the library lib$name in $additional_libdir and $LDFLAGS
- dnl and the already constructed $LIBNAME/$LTLIBNAME.
- found_dir=
- 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 $use_additional = yes; then
- for additional_libdir_variable in additional_libdir additional_libdir2 additional_libdir3; do
- if test "X$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
- 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="$dir"
- found_a="$dir/$libname.$acl_libext"
- fi
- fi
- if test "X$found_dir" != "X"; then
- if test -f "$dir/$libname.la"; then
- found_la="$dir/$libname.la"
- fi
- fi
- fi
- fi
- done
- fi
- if test "X$found_dir" = "X"; then
- for x in $LDFLAGS $LTLIB[]NAME; do
- AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
- case "$x" in
- -L*)
- dir=`echo "X$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" && 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
- 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="$dir"
- found_a="$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
- break
- fi
- done
- fi
- if test "X$found_dir" != "X"; then
- dnl Found the library.
- LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name"
- if test "X$found_so" != "X"; then
- 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/$acl_libdirstem" \
- || test "X$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
- dnl Use an explicit option to hardcode DIR into the resulting
- dnl binary.
- dnl Potentially add DIR to ltrpathdirs.
- dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
- haveit=
- for x in $ltrpathdirs; do
- if test "X$x" = "X$found_dir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- ltrpathdirs="$ltrpathdirs $found_dir"
- fi
- dnl The hardcoding into $LIBNAME is system dependent.
- if test "$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:+ }$found_so"
- else
- if test -n "$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"
- dnl Potentially add DIR to rpathdirs.
- dnl The rpathdirs will be appended to $LIBNAME at the end.
- haveit=
- for x in $rpathdirs; do
- if test "X$x" = "X$found_dir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- rpathdirs="$rpathdirs $found_dir"
- fi
- else
- dnl Rely on "-L$found_dir".
- dnl But don't add it if it's already contained in the LDFLAGS
- dnl or the already constructed $LIBNAME
- haveit=
- for x in $LDFLAGS $LIB[]NAME; do
- AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
- if test "X$x" = "X-L$found_dir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir"
- fi
- 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 $acl_hardcode_runpath_var and LD_RUN_PATH
- dnl here, because this doesn't fit in flags passed to the
- dnl compiler. So give up. No hardcoding. This affects only
- dnl very old systems.
- dnl FIXME: Not sure whether we should use
- dnl "-L$found_dir -l$name" or "-L$found_dir $found_so"
- dnl here.
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
- fi
- fi
- fi
- fi
- else
- if test "X$found_a" != "X"; then
- dnl Linking with a static library.
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a"
- else
- dnl We shouldn't come here, but anyway it's good to have a
- dnl fallback.
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name"
- fi
- fi
- dnl Assume the include files are nearby.
- additional_includedir=
- case "$found_dir" in
- */$acl_libdirstem | */$acl_libdirstem/)
- basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'`
- 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="$basedir/include"
- ;;
- */$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.
- dnl But don't add it
- dnl 1. if it's the standard /usr/include,
- dnl 2. if it's /usr/local/include and we are using GCC on Linux,
- dnl 3. if it's already present in $CPPFLAGS or the already
- dnl constructed $INCNAME,
- dnl 4. if it doesn't exist as a directory.
- if test "X$additional_includedir" != "X/usr/include"; then
- haveit=
- if test "X$additional_includedir" = "X/usr/local/include"; then
- if test -n "$GCC"; then
- case $host_os in
- linux* | gnu* | k*bsd*-gnu) haveit=yes;;
- esac
- fi
- fi
- if test -z "$haveit"; then
- for x in $CPPFLAGS $INC[]NAME; do
- AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
- if test "X$x" = "X-I$additional_includedir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- if test -d "$additional_includedir"; then
- dnl Really add $additional_includedir to $INCNAME.
- INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir"
- fi
- fi
- fi
- fi
- fi
- dnl Look for dependencies.
- if test -n "$found_la"; then
- dnl Read the .la file. It defines the variables
- dnl dlname, library_names, old_library, dependency_libs, current,
- dnl age, revision, installed, dlopen, dlpreopen, libdir.
- save_libdir="$libdir"
- case "$found_la" in
- */* | *\\*) . "$found_la" ;;
- *) . "./$found_la" ;;
- esac
- libdir="$save_libdir"
- dnl We use only dependency_libs.
- for dep in $dependency_libs; do
- case "$dep" in
- -L*)
- 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 $LIBNAME,
- dnl 4. if it doesn't exist as a directory.
- if test "X$dependency_libdir" != "X/usr/$acl_libdirstem" \
- && test "X$dependency_libdir" != "X/usr/$acl_libdirstem2" \
- && test "X$dependency_libdir" != "X/usr/$acl_libdirstem3"; then
- haveit=
- if test "X$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 $host_os in
- linux* | gnu* | k*bsd*-gnu) haveit=yes;;
- esac
- fi
- fi
- if test -z "$haveit"; then
- haveit=
- for x in $LDFLAGS $LIB[]NAME; do
- AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
- if test "X$x" = "X-L$dependency_libdir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- if test -d "$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$x" = "X-L$dependency_libdir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- if test -d "$dependency_libdir"; then
- dnl Really add $dependency_libdir to $LTLIBNAME.
- LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$dependency_libdir"
- fi
- fi
- fi
- fi
- ;;
- -R*)
- dir=`echo "X$dep" | sed -e 's/^X-R//'`
- if test "$enable_rpath" != no; then
- dnl Potentially add DIR to rpathdirs.
- dnl The rpathdirs will be appended to $LIBNAME at the end.
- haveit=
- for x in $rpathdirs; do
- if test "X$x" = "X$dir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- rpathdirs="$rpathdirs $dir"
- fi
- dnl Potentially add DIR to ltrpathdirs.
- dnl The ltrpathdirs will be appended to $LTLIBNAME at the end.
- haveit=
- for x in $ltrpathdirs; do
- if test "X$x" = "X$dir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- ltrpathdirs="$ltrpathdirs $dir"
- fi
- fi
- ;;
- -l*)
- dnl Handle this in the next round.
- names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'`
- ;;
- *.la)
- dnl Handle this in the next round. Throw away the .la's
- dnl directory; it is already contained in a preceding -L
- dnl option.
- names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'`
- ;;
- *)
- dnl Most likely an immediate library name.
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep"
- LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep"
- ;;
- esac
- done
- fi
- else
- dnl Didn't find the library; assume it is in the system directories
- dnl known to the linker and runtime loader. (All the system
- dnl directories known to the linker should also be known to the
- dnl runtime loader, otherwise the system is severely misconfigured.)
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name"
- LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name"
- fi
- fi
- fi
- done
- done
- if test "X$rpathdirs" != "X"; then
- if test -n "$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}${alldirs:+$acl_hardcode_libdir_separator}$found_dir"
- done
- dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl.
- acl_save_libdir="$libdir"
- libdir="$alldirs"
- eval flag=\"$acl_hardcode_libdir_flag_spec\"
- libdir="$acl_save_libdir"
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
- else
- dnl The -rpath options are cumulative.
- for found_dir in $rpathdirs; do
- acl_save_libdir="$libdir"
- libdir="$found_dir"
- eval flag=\"$acl_hardcode_libdir_flag_spec\"
- libdir="$acl_save_libdir"
- LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag"
- done
- fi
- fi
- if test "X$ltrpathdirs" != "X"; then
- dnl When using libtool, the option that works for both libraries and
- dnl executables is -R. The -R options are cumulative.
- for found_dir in $ltrpathdirs; do
- LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir"
- done
- fi
- popdef([PACKLIBS])
- popdef([PACKUP])
- popdef([PACK])
- popdef([NAME])
-])
-
-dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR,
-dnl unless already present in VAR.
-dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes
-dnl contains two or three consecutive elements that belong together.
-AC_DEFUN([AC_LIB_APPENDTOVAR],
-[
- for element in [$2]; do
- haveit=
- for x in $[$1]; do
- AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
- if test "X$x" = "X$element"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- [$1]="${[$1]}${[$1]:+ }$element"
- fi
- done
-])
-
-dnl For those cases where a variable contains several -L and -l options
-dnl referring to unknown libraries and directories, this macro determines the
-dnl necessary additional linker options for the runtime path.
-dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL])
-dnl sets LDADDVAR to linker options needed together with LIBSVALUE.
-dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed,
-dnl otherwise linking without libtool is assumed.
-AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS],
-[
- AC_REQUIRE([AC_LIB_RPATH])
- AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
- $1=
- if test "$enable_rpath" != 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=
- next=
- for opt in $2; do
- if test -n "$next"; then
- dir="$next"
- dnl No need to hardcode the standard /usr/lib.
- if test "X$dir" != "X/usr/$acl_libdirstem" \
- && test "X$dir" != "X/usr/$acl_libdirstem2" \
- && test "X$dir" != "X/usr/$acl_libdirstem3"; then
- rpathdirs="$rpathdirs $dir"
- fi
- next=
- else
- case $opt in
- -L) next=yes ;;
- -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'`
- dnl No need to hardcode the standard /usr/lib.
- if test "X$dir" != "X/usr/$acl_libdirstem" \
- && test "X$dir" != "X/usr/$acl_libdirstem2" \
- && test "X$dir" != "X/usr/$acl_libdirstem3"; then
- rpathdirs="$rpathdirs $dir"
- fi
- next= ;;
- *) next= ;;
- esac
- fi
- done
- if test "X$rpathdirs" != "X"; then
- if test -n ""$3""; then
- dnl libtool is used for linking. Use -R options.
- for dir in $rpathdirs; do
- $1="${$1}${$1:+ }-R$dir"
- done
- else
- dnl The linker is used for linking directly.
- 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}${alldirs:+$acl_hardcode_libdir_separator}$dir"
- done
- acl_save_libdir="$libdir"
- libdir="$alldirs"
- eval flag=\"$acl_hardcode_libdir_flag_spec\"
- libdir="$acl_save_libdir"
- $1="$flag"
- else
- dnl The -rpath options are cumulative.
- for dir in $rpathdirs; do
- acl_save_libdir="$libdir"
- libdir="$dir"
- eval flag=\"$acl_hardcode_libdir_flag_spec\"
- libdir="$acl_save_libdir"
- $1="${$1}${$1:+ }$flag"
- done
- fi
- fi
- fi
- fi
- fi
- AC_SUBST([$1])
-])
projects / deliverable / binutils-gdb.git / commitdiff
