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# lib-link.m4 serial 13 (gettext-0.17) |
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dnl Copyright (C) 2001-2007 Free Software Foundation, Inc. |
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dnl This file is free software; the Free Software Foundation |
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dnl gives unlimited permission to copy and/or distribute it, |
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dnl with or without modifications, as long as this notice is preserved. |
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|
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dnl From Bruno Haible. |
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|
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AC_PREREQ(2.54) |
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|
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dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and |
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dnl the libraries corresponding to explicit and implicit dependencies. |
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dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and |
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dnl augments the CPPFLAGS variable. |
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dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname |
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dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. |
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AC_DEFUN([AC_LIB_LINKFLAGS], |
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[ |
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AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
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AC_REQUIRE([AC_LIB_RPATH]) |
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define([Name],[translit([$1],[./-], [___])]) |
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define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], |
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [ |
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AC_LIB_LINKFLAGS_BODY([$1], [$2]) |
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ac_cv_lib[]Name[]_libs="$LIB[]NAME" |
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ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME" |
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ac_cv_lib[]Name[]_cppflags="$INC[]NAME" |
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ac_cv_lib[]Name[]_prefix="$LIB[]NAME[]_PREFIX" |
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]) |
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LIB[]NAME="$ac_cv_lib[]Name[]_libs" |
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LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs" |
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INC[]NAME="$ac_cv_lib[]Name[]_cppflags" |
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LIB[]NAME[]_PREFIX="$ac_cv_lib[]Name[]_prefix" |
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AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) |
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AC_SUBST([LIB]NAME) |
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AC_SUBST([LTLIB]NAME) |
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AC_SUBST([LIB]NAME[_PREFIX]) |
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dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the |
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dnl results of this search when this library appears as a dependency. |
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HAVE_LIB[]NAME=yes |
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undefine([Name]) |
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undefine([NAME]) |
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]) |
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|
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dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode) |
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dnl searches for libname and the libraries corresponding to explicit and |
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dnl implicit dependencies, together with the specified include files and |
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dnl the ability to compile and link the specified testcode. If found, it |
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dnl sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} and |
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dnl LTLIB${NAME} variables and augments the CPPFLAGS variable, and |
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dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs |
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dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty. |
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dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname |
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dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. |
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AC_DEFUN([AC_LIB_HAVE_LINKFLAGS], |
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[ |
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AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
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AC_REQUIRE([AC_LIB_RPATH]) |
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define([Name],[translit([$1],[./-], [___])]) |
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define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], |
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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|
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dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME |
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dnl accordingly. |
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AC_LIB_LINKFLAGS_BODY([$1], [$2]) |
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|
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dnl Add $INC[]NAME to CPPFLAGS before performing the following checks, |
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dnl because if the user has installed lib[]Name and not disabled its use |
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dnl via --without-lib[]Name-prefix, he wants to use it. |
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ac_save_CPPFLAGS="$CPPFLAGS" |
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AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) |
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|
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AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [ |
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ac_save_LIBS="$LIBS" |
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LIBS="$LIBS $LIB[]NAME" |
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AC_TRY_LINK([$3], [$4], [ac_cv_lib[]Name=yes], [ac_cv_lib[]Name=no]) |
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LIBS="$ac_save_LIBS" |
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]) |
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if test "$ac_cv_lib[]Name" = yes; then |
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HAVE_LIB[]NAME=yes |
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AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the $1 library.]) |
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AC_MSG_CHECKING([how to link with lib[]$1]) |
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AC_MSG_RESULT([$LIB[]NAME]) |
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else |
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HAVE_LIB[]NAME=no |
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dnl If $LIB[]NAME didn't lead to a usable library, we don't need |
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dnl $INC[]NAME either. |
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CPPFLAGS="$ac_save_CPPFLAGS" |
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LIB[]NAME= |
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LTLIB[]NAME= |
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LIB[]NAME[]_PREFIX= |
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fi |
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AC_SUBST([HAVE_LIB]NAME) |
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AC_SUBST([LIB]NAME) |
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AC_SUBST([LTLIB]NAME) |
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AC_SUBST([LIB]NAME[_PREFIX]) |
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undefine([Name]) |
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undefine([NAME]) |
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]) |
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|
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dnl Determine the platform dependent parameters needed to use rpath: |
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dnl acl_libext, |
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dnl acl_shlibext, |
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dnl acl_hardcode_libdir_flag_spec, |
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dnl acl_hardcode_libdir_separator, |
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dnl acl_hardcode_direct, |
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dnl acl_hardcode_minus_L. |
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AC_DEFUN([AC_LIB_RPATH], |
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[ |
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dnl Tell automake >= 1.10 to complain if config.rpath is missing. |
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m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])]) |
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AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS |
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AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld |
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host |
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AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir |
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AC_CACHE_CHECK([for shared library run path origin], acl_cv_rpath, [ |
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CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \ |
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${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh |
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. ./conftest.sh |
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rm -f ./conftest.sh |
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acl_cv_rpath=done |
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]) |
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wl="$acl_cv_wl" |
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acl_libext="$acl_cv_libext" |
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acl_shlibext="$acl_cv_shlibext" |
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acl_libname_spec="$acl_cv_libname_spec" |
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acl_library_names_spec="$acl_cv_library_names_spec" |
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acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" |
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acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" |
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acl_hardcode_direct="$acl_cv_hardcode_direct" |
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acl_hardcode_minus_L="$acl_cv_hardcode_minus_L" |
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dnl Determine whether the user wants rpath handling at all. |
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AC_ARG_ENABLE(rpath, |
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[ --disable-rpath do not hardcode runtime library paths], |
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:, enable_rpath=yes) |
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]) |
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|
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dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and |
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dnl the libraries corresponding to explicit and implicit dependencies. |
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dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables. |
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dnl Also, sets the LIB${NAME}_PREFIX variable to nonempty if libname was found |
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dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem. |
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AC_DEFUN([AC_LIB_LINKFLAGS_BODY], |
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[ |
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AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
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define([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], |
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[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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dnl Autoconf >= 2.61 supports dots in --with options. |
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define([N_A_M_E],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[translit([$1],[.],[_])],[$1])]) |
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dnl By default, look in $includedir and $libdir. |
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use_additional=yes |
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AC_LIB_WITH_FINAL_PREFIX([ |
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eval additional_includedir=\"$includedir\" |
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eval additional_libdir=\"$libdir\" |
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]) |
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AC_LIB_ARG_WITH([lib]N_A_M_E[-prefix], |
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[ --with-lib]N_A_M_E[-prefix[=DIR] search for lib$1 in DIR/include and DIR/lib |
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--without-lib]N_A_M_E[-prefix don't search for lib$1 in includedir and libdir], |
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[ |
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if test "X$withval" = "Xno"; then |
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use_additional=no |
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else |
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if test "X$withval" = "X"; then |
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AC_LIB_WITH_FINAL_PREFIX([ |
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eval additional_includedir=\"$includedir\" |
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eval additional_libdir=\"$libdir\" |
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]) |
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else |
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additional_includedir="$withval/include" |
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additional_libdir="$withval/$acl_libdirstem" |
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fi |
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fi |
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]) |
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dnl Search the library and its dependencies in $additional_libdir and |
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dnl $LDFLAGS. Using breadth-first-seach. |
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LIB[]NAME= |
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LTLIB[]NAME= |
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INC[]NAME= |
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LIB[]NAME[]_PREFIX= |
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rpathdirs= |
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ltrpathdirs= |
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names_already_handled= |
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names_next_round='$1 $2' |
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while test -n "$names_next_round"; do |
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names_this_round="$names_next_round" |
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names_next_round= |
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for name in $names_this_round; do |
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already_handled= |
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for n in $names_already_handled; do |
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if test "$n" = "$name"; then |
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already_handled=yes |
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break |
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fi |
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done |
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if test -z "$already_handled"; then |
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names_already_handled="$names_already_handled $name" |
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dnl See if it was already located by an earlier AC_LIB_LINKFLAGS |
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dnl or AC_LIB_HAVE_LINKFLAGS call. |
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uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'` |
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eval value=\"\$HAVE_LIB$uppername\" |
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if test -n "$value"; then |
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if test "$value" = yes; then |
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eval value=\"\$LIB$uppername\" |
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test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" |
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eval value=\"\$LTLIB$uppername\" |
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test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" |
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else |
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dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined |
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dnl that this library doesn't exist. So just drop it. |
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: |
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fi |
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else |
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dnl Search the library lib$name in $additional_libdir and $LDFLAGS |
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dnl and the already constructed $LIBNAME/$LTLIBNAME. |
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found_dir= |
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found_la= |
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found_so= |
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found_a= |
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eval libname=\"$acl_libname_spec\" # typically: libname=lib$name |
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if test -n "$acl_shlibext"; then |
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shrext=".$acl_shlibext" # typically: shrext=.so |
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else |
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shrext= |
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fi |
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if test $use_additional = yes; then |
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dir="$additional_libdir" |
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dnl The same code as in the loop below: |
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dnl First look for a shared library. |
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if test -n "$acl_shlibext"; then |
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if test -f "$dir/$libname$shrext"; then |
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found_dir="$dir" |
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found_so="$dir/$libname$shrext" |
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else |
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if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then |
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ver=`(cd "$dir" && \ |
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for f in "$libname$shrext".*; do echo "$f"; done \ |
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| sed -e "s,^$libname$shrext\\\\.,," \ |
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| sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ |
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| sed 1q ) 2>/dev/null` |
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if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then |
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found_dir="$dir" |
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found_so="$dir/$libname$shrext.$ver" |
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fi |
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else |
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eval library_names=\"$acl_library_names_spec\" |
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for f in $library_names; do |
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if test -f "$dir/$f"; then |
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found_dir="$dir" |
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found_so="$dir/$f" |
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break |
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fi |
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done |
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fi |
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fi |
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fi |
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dnl Then look for a static library. |
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if test "X$found_dir" = "X"; then |
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if test -f "$dir/$libname.$acl_libext"; then |
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found_dir="$dir" |
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found_a="$dir/$libname.$acl_libext" |
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fi |
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fi |
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if test "X$found_dir" != "X"; then |
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if test -f "$dir/$libname.la"; then |
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found_la="$dir/$libname.la" |
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fi |
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fi |
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fi |
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if test "X$found_dir" = "X"; then |
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for x in $LDFLAGS $LTLIB[]NAME; do |
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AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
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case "$x" in |
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-L*) |
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dir=`echo "X$x" | sed -e 's/^X-L//'` |
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dnl First look for a shared library. |
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if test -n "$acl_shlibext"; then |
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if test -f "$dir/$libname$shrext"; then |
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found_dir="$dir" |
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found_so="$dir/$libname$shrext" |
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else |
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if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then |
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ver=`(cd "$dir" && \ |
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for f in "$libname$shrext".*; do echo "$f"; done \ |
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| sed -e "s,^$libname$shrext\\\\.,," \ |
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| sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ |
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| sed 1q ) 2>/dev/null` |
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if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then |
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found_dir="$dir" |
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found_so="$dir/$libname$shrext.$ver" |
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fi |
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else |
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eval library_names=\"$acl_library_names_spec\" |
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for f in $library_names; do |
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if test -f "$dir/$f"; then |
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found_dir="$dir" |
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found_so="$dir/$f" |
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break |
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fi |
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done |
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fi |
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fi |
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fi |
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dnl Then look for a static library. |
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if test "X$found_dir" = "X"; then |
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if test -f "$dir/$libname.$acl_libext"; then |
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found_dir="$dir" |
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found_a="$dir/$libname.$acl_libext" |
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fi |
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fi |
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if test "X$found_dir" != "X"; then |
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if test -f "$dir/$libname.la"; then |
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found_la="$dir/$libname.la" |
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fi |
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fi |
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;; |
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esac |
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if test "X$found_dir" != "X"; then |
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break |
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fi |
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done |
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fi |
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if test "X$found_dir" != "X"; then |
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dnl Found the library. |
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LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" |
| 326 |
if test "X$found_so" != "X"; then |
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dnl Linking with a shared library. We attempt to hardcode its |
| 328 |
dnl directory into the executable's runpath, unless it's the |
| 329 |
dnl standard /usr/lib. |
| 330 |
if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/$acl_libdirstem"; then |
| 331 |
dnl No hardcoding is needed. |
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LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
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else |
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dnl Use an explicit option to hardcode DIR into the resulting |
| 335 |
dnl binary. |
| 336 |
dnl Potentially add DIR to ltrpathdirs. |
| 337 |
dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. |
| 338 |
haveit= |
| 339 |
for x in $ltrpathdirs; do |
| 340 |
if test "X$x" = "X$found_dir"; then |
| 341 |
haveit=yes |
| 342 |
break |
| 343 |
fi |
| 344 |
done |
| 345 |
if test -z "$haveit"; then |
| 346 |
ltrpathdirs="$ltrpathdirs $found_dir" |
| 347 |
fi |
| 348 |
dnl The hardcoding into $LIBNAME is system dependent. |
| 349 |
if test "$acl_hardcode_direct" = yes; then |
| 350 |
dnl Using DIR/libNAME.so during linking hardcodes DIR into the |
| 351 |
dnl resulting binary. |
| 352 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
| 353 |
else |
| 354 |
if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then |
| 355 |
dnl Use an explicit option to hardcode DIR into the resulting |
| 356 |
dnl binary. |
| 357 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
| 358 |
dnl Potentially add DIR to rpathdirs. |
| 359 |
dnl The rpathdirs will be appended to $LIBNAME at the end. |
| 360 |
haveit= |
| 361 |
for x in $rpathdirs; do |
| 362 |
if test "X$x" = "X$found_dir"; then |
| 363 |
haveit=yes |
| 364 |
break |
| 365 |
fi |
| 366 |
done |
| 367 |
if test -z "$haveit"; then |
| 368 |
rpathdirs="$rpathdirs $found_dir" |
| 369 |
fi |
| 370 |
else |
| 371 |
dnl Rely on "-L$found_dir". |
| 372 |
dnl But don't add it if it's already contained in the LDFLAGS |
| 373 |
dnl or the already constructed $LIBNAME |
| 374 |
haveit= |
| 375 |
for x in $LDFLAGS $LIB[]NAME; do |
| 376 |
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
| 377 |
if test "X$x" = "X-L$found_dir"; then |
| 378 |
haveit=yes |
| 379 |
break |
| 380 |
fi |
| 381 |
done |
| 382 |
if test -z "$haveit"; then |
| 383 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" |
| 384 |
fi |
| 385 |
if test "$acl_hardcode_minus_L" != no; then |
| 386 |
dnl FIXME: Not sure whether we should use |
| 387 |
dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" |
| 388 |
dnl here. |
| 389 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
| 390 |
else |
| 391 |
dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH |
| 392 |
dnl here, because this doesn't fit in flags passed to the |
| 393 |
dnl compiler. So give up. No hardcoding. This affects only |
| 394 |
dnl very old systems. |
| 395 |
dnl FIXME: Not sure whether we should use |
| 396 |
dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" |
| 397 |
dnl here. |
| 398 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" |
| 399 |
fi |
| 400 |
fi |
| 401 |
fi |
| 402 |
fi |
| 403 |
else |
| 404 |
if test "X$found_a" != "X"; then |
| 405 |
dnl Linking with a static library. |
| 406 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" |
| 407 |
else |
| 408 |
dnl We shouldn't come here, but anyway it's good to have a |
| 409 |
dnl fallback. |
| 410 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" |
| 411 |
fi |
| 412 |
fi |
| 413 |
dnl Assume the include files are nearby. |
| 414 |
additional_includedir= |
| 415 |
case "$found_dir" in |
| 416 |
*/$acl_libdirstem | */$acl_libdirstem/) |
| 417 |
basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` |
| 418 |
LIB[]NAME[]_PREFIX="$basedir" |
| 419 |
additional_includedir="$basedir/include" |
| 420 |
;; |
| 421 |
esac |
| 422 |
if test "X$additional_includedir" != "X"; then |
| 423 |
dnl Potentially add $additional_includedir to $INCNAME. |
| 424 |
dnl But don't add it |
| 425 |
dnl 1. if it's the standard /usr/include, |
| 426 |
dnl 2. if it's /usr/local/include and we are using GCC on Linux, |
| 427 |
dnl 3. if it's already present in $CPPFLAGS or the already |
| 428 |
dnl constructed $INCNAME, |
| 429 |
dnl 4. if it doesn't exist as a directory. |
| 430 |
if test "X$additional_includedir" != "X/usr/include"; then |
| 431 |
haveit= |
| 432 |
if test "X$additional_includedir" = "X/usr/local/include"; then |
| 433 |
if test -n "$GCC"; then |
| 434 |
case $host_os in |
| 435 |
linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
| 436 |
esac |
| 437 |
fi |
| 438 |
fi |
| 439 |
if test -z "$haveit"; then |
| 440 |
for x in $CPPFLAGS $INC[]NAME; do |
| 441 |
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
| 442 |
if test "X$x" = "X-I$additional_includedir"; then |
| 443 |
haveit=yes |
| 444 |
break |
| 445 |
fi |
| 446 |
done |
| 447 |
if test -z "$haveit"; then |
| 448 |
if test -d "$additional_includedir"; then |
| 449 |
dnl Really add $additional_includedir to $INCNAME. |
| 450 |
INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" |
| 451 |
fi |
| 452 |
fi |
| 453 |
fi |
| 454 |
fi |
| 455 |
fi |
| 456 |
dnl Look for dependencies. |
| 457 |
if test -n "$found_la"; then |
| 458 |
dnl Read the .la file. It defines the variables |
| 459 |
dnl dlname, library_names, old_library, dependency_libs, current, |
| 460 |
dnl age, revision, installed, dlopen, dlpreopen, libdir. |
| 461 |
save_libdir="$libdir" |
| 462 |
case "$found_la" in |
| 463 |
*/* | *\\*) . "$found_la" ;; |
| 464 |
*) . "./$found_la" ;; |
| 465 |
esac |
| 466 |
libdir="$save_libdir" |
| 467 |
dnl We use only dependency_libs. |
| 468 |
for dep in $dependency_libs; do |
| 469 |
case "$dep" in |
| 470 |
-L*) |
| 471 |
additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` |
| 472 |
dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. |
| 473 |
dnl But don't add it |
| 474 |
dnl 1. if it's the standard /usr/lib, |
| 475 |
dnl 2. if it's /usr/local/lib and we are using GCC on Linux, |
| 476 |
dnl 3. if it's already present in $LDFLAGS or the already |
| 477 |
dnl constructed $LIBNAME, |
| 478 |
dnl 4. if it doesn't exist as a directory. |
| 479 |
if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then |
| 480 |
haveit= |
| 481 |
if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then |
| 482 |
if test -n "$GCC"; then |
| 483 |
case $host_os in |
| 484 |
linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
| 485 |
esac |
| 486 |
fi |
| 487 |
fi |
| 488 |
if test -z "$haveit"; then |
| 489 |
haveit= |
| 490 |
for x in $LDFLAGS $LIB[]NAME; do |
| 491 |
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
| 492 |
if test "X$x" = "X-L$additional_libdir"; then |
| 493 |
haveit=yes |
| 494 |
break |
| 495 |
fi |
| 496 |
done |
| 497 |
if test -z "$haveit"; then |
| 498 |
if test -d "$additional_libdir"; then |
| 499 |
dnl Really add $additional_libdir to $LIBNAME. |
| 500 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" |
| 501 |
fi |
| 502 |
fi |
| 503 |
haveit= |
| 504 |
for x in $LDFLAGS $LTLIB[]NAME; do |
| 505 |
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
| 506 |
if test "X$x" = "X-L$additional_libdir"; then |
| 507 |
haveit=yes |
| 508 |
break |
| 509 |
fi |
| 510 |
done |
| 511 |
if test -z "$haveit"; then |
| 512 |
if test -d "$additional_libdir"; then |
| 513 |
dnl Really add $additional_libdir to $LTLIBNAME. |
| 514 |
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" |
| 515 |
fi |
| 516 |
fi |
| 517 |
fi |
| 518 |
fi |
| 519 |
;; |
| 520 |
-R*) |
| 521 |
dir=`echo "X$dep" | sed -e 's/^X-R//'` |
| 522 |
if test "$enable_rpath" != no; then |
| 523 |
dnl Potentially add DIR to rpathdirs. |
| 524 |
dnl The rpathdirs will be appended to $LIBNAME at the end. |
| 525 |
haveit= |
| 526 |
for x in $rpathdirs; do |
| 527 |
if test "X$x" = "X$dir"; then |
| 528 |
haveit=yes |
| 529 |
break |
| 530 |
fi |
| 531 |
done |
| 532 |
if test -z "$haveit"; then |
| 533 |
rpathdirs="$rpathdirs $dir" |
| 534 |
fi |
| 535 |
dnl Potentially add DIR to ltrpathdirs. |
| 536 |
dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. |
| 537 |
haveit= |
| 538 |
for x in $ltrpathdirs; do |
| 539 |
if test "X$x" = "X$dir"; then |
| 540 |
haveit=yes |
| 541 |
break |
| 542 |
fi |
| 543 |
done |
| 544 |
if test -z "$haveit"; then |
| 545 |
ltrpathdirs="$ltrpathdirs $dir" |
| 546 |
fi |
| 547 |
fi |
| 548 |
;; |
| 549 |
-l*) |
| 550 |
dnl Handle this in the next round. |
| 551 |
names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` |
| 552 |
;; |
| 553 |
*.la) |
| 554 |
dnl Handle this in the next round. Throw away the .la's |
| 555 |
dnl directory; it is already contained in a preceding -L |
| 556 |
dnl option. |
| 557 |
names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` |
| 558 |
;; |
| 559 |
*) |
| 560 |
dnl Most likely an immediate library name. |
| 561 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" |
| 562 |
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" |
| 563 |
;; |
| 564 |
esac |
| 565 |
done |
| 566 |
fi |
| 567 |
else |
| 568 |
dnl Didn't find the library; assume it is in the system directories |
| 569 |
dnl known to the linker and runtime loader. (All the system |
| 570 |
dnl directories known to the linker should also be known to the |
| 571 |
dnl runtime loader, otherwise the system is severely misconfigured.) |
| 572 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" |
| 573 |
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" |
| 574 |
fi |
| 575 |
fi |
| 576 |
fi |
| 577 |
done |
| 578 |
done |
| 579 |
if test "X$rpathdirs" != "X"; then |
| 580 |
if test -n "$acl_hardcode_libdir_separator"; then |
| 581 |
dnl Weird platform: only the last -rpath option counts, the user must |
| 582 |
dnl pass all path elements in one option. We can arrange that for a |
| 583 |
dnl single library, but not when more than one $LIBNAMEs are used. |
| 584 |
alldirs= |
| 585 |
for found_dir in $rpathdirs; do |
| 586 |
alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" |
| 587 |
done |
| 588 |
dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. |
| 589 |
acl_save_libdir="$libdir" |
| 590 |
libdir="$alldirs" |
| 591 |
eval flag=\"$acl_hardcode_libdir_flag_spec\" |
| 592 |
libdir="$acl_save_libdir" |
| 593 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" |
| 594 |
else |
| 595 |
dnl The -rpath options are cumulative. |
| 596 |
for found_dir in $rpathdirs; do |
| 597 |
acl_save_libdir="$libdir" |
| 598 |
libdir="$found_dir" |
| 599 |
eval flag=\"$acl_hardcode_libdir_flag_spec\" |
| 600 |
libdir="$acl_save_libdir" |
| 601 |
LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" |
| 602 |
done |
| 603 |
fi |
| 604 |
fi |
| 605 |
if test "X$ltrpathdirs" != "X"; then |
| 606 |
dnl When using libtool, the option that works for both libraries and |
| 607 |
dnl executables is -R. The -R options are cumulative. |
| 608 |
for found_dir in $ltrpathdirs; do |
| 609 |
LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" |
| 610 |
done |
| 611 |
fi |
| 612 |
]) |
| 613 |
|
| 614 |
dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, |
| 615 |
dnl unless already present in VAR. |
| 616 |
dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes |
| 617 |
dnl contains two or three consecutive elements that belong together. |
| 618 |
AC_DEFUN([AC_LIB_APPENDTOVAR], |
| 619 |
[ |
| 620 |
for element in [$2]; do |
| 621 |
haveit= |
| 622 |
for x in $[$1]; do |
| 623 |
AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
| 624 |
if test "X$x" = "X$element"; then |
| 625 |
haveit=yes |
| 626 |
break |
| 627 |
fi |
| 628 |
done |
| 629 |
if test -z "$haveit"; then |
| 630 |
[$1]="${[$1]}${[$1]:+ }$element" |
| 631 |
fi |
| 632 |
done |
| 633 |
]) |
| 634 |
|
| 635 |
dnl For those cases where a variable contains several -L and -l options |
| 636 |
dnl referring to unknown libraries and directories, this macro determines the |
| 637 |
dnl necessary additional linker options for the runtime path. |
| 638 |
dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL]) |
| 639 |
dnl sets LDADDVAR to linker options needed together with LIBSVALUE. |
| 640 |
dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed, |
| 641 |
dnl otherwise linking without libtool is assumed. |
| 642 |
AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], |
| 643 |
[ |
| 644 |
AC_REQUIRE([AC_LIB_RPATH]) |
| 645 |
AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
| 646 |
$1= |
| 647 |
if test "$enable_rpath" != no; then |
| 648 |
if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then |
| 649 |
dnl Use an explicit option to hardcode directories into the resulting |
| 650 |
dnl binary. |
| 651 |
rpathdirs= |
| 652 |
next= |
| 653 |
for opt in $2; do |
| 654 |
if test -n "$next"; then |
| 655 |
dir="$next" |
| 656 |
dnl No need to hardcode the standard /usr/lib. |
| 657 |
if test "X$dir" != "X/usr/$acl_libdirstem"; then |
| 658 |
rpathdirs="$rpathdirs $dir" |
| 659 |
fi |
| 660 |
next= |
| 661 |
else |
| 662 |
case $opt in |
| 663 |
-L) next=yes ;; |
| 664 |
-L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` |
| 665 |
dnl No need to hardcode the standard /usr/lib. |
| 666 |
if test "X$dir" != "X/usr/$acl_libdirstem"; then |
| 667 |
rpathdirs="$rpathdirs $dir" |
| 668 |
fi |
| 669 |
next= ;; |
| 670 |
*) next= ;; |
| 671 |
esac |
| 672 |
fi |
| 673 |
done |
| 674 |
if test "X$rpathdirs" != "X"; then |
| 675 |
if test -n ""$3""; then |
| 676 |
dnl libtool is used for linking. Use -R options. |
| 677 |
for dir in $rpathdirs; do |
| 678 |
$1="${$1}${$1:+ }-R$dir" |
| 679 |
done |
| 680 |
else |
| 681 |
dnl The linker is used for linking directly. |
| 682 |
if test -n "$acl_hardcode_libdir_separator"; then |
| 683 |
dnl Weird platform: only the last -rpath option counts, the user |
| 684 |
dnl must pass all path elements in one option. |
| 685 |
alldirs= |
| 686 |
for dir in $rpathdirs; do |
| 687 |
alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" |
| 688 |
done |
| 689 |
acl_save_libdir="$libdir" |
| 690 |
libdir="$alldirs" |
| 691 |
eval flag=\"$acl_hardcode_libdir_flag_spec\" |
| 692 |
libdir="$acl_save_libdir" |
| 693 |
$1="$flag" |
| 694 |
else |
| 695 |
dnl The -rpath options are cumulative. |
| 696 |
for dir in $rpathdirs; do |
| 697 |
acl_save_libdir="$libdir" |
| 698 |
libdir="$dir" |
| 699 |
eval flag=\"$acl_hardcode_libdir_flag_spec\" |
| 700 |
libdir="$acl_save_libdir" |
| 701 |
$1="${$1}${$1:+ }$flag" |
| 702 |
done |
| 703 |
fi |
| 704 |
fi |
| 705 |
fi |
| 706 |
fi |
| 707 |
fi |
| 708 |
AC_SUBST([$1]) |
| 709 |
]) |
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