[4548] | 1 | # lib-link.m4 serial 21 (gettext-0.18) |
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| 2 | dnl Copyright (C) 2001-2010 Free Software Foundation, Inc. |
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| 3 | dnl This file is free software; the Free Software Foundation |
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| 4 | dnl gives unlimited permission to copy and/or distribute it, |
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| 5 | dnl with or without modifications, as long as this notice is preserved. |
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| 6 | |
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| 7 | dnl From Bruno Haible. |
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| 8 | |
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| 9 | AC_PREREQ([2.54]) |
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| 10 | |
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| 11 | dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and |
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| 12 | dnl the libraries corresponding to explicit and implicit dependencies. |
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| 13 | dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and |
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| 14 | dnl augments the CPPFLAGS variable. |
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| 15 | dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname |
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| 16 | dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. |
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| 17 | AC_DEFUN([AC_LIB_LINKFLAGS], |
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| 18 | [ |
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| 19 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
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| 20 | AC_REQUIRE([AC_LIB_RPATH]) |
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| 21 | pushdef([Name],[translit([$1],[./-], [___])]) |
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| 22 | pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], |
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| 23 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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| 24 | AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [ |
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| 25 | AC_LIB_LINKFLAGS_BODY([$1], [$2]) |
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| 26 | ac_cv_lib[]Name[]_libs="$LIB[]NAME" |
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| 27 | ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME" |
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| 28 | ac_cv_lib[]Name[]_cppflags="$INC[]NAME" |
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| 29 | ac_cv_lib[]Name[]_prefix="$LIB[]NAME[]_PREFIX" |
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| 30 | ]) |
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| 31 | LIB[]NAME="$ac_cv_lib[]Name[]_libs" |
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| 32 | LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs" |
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| 33 | INC[]NAME="$ac_cv_lib[]Name[]_cppflags" |
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| 34 | LIB[]NAME[]_PREFIX="$ac_cv_lib[]Name[]_prefix" |
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| 35 | AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) |
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| 36 | AC_SUBST([LIB]NAME) |
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| 37 | AC_SUBST([LTLIB]NAME) |
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| 38 | AC_SUBST([LIB]NAME[_PREFIX]) |
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| 39 | dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the |
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| 40 | dnl results of this search when this library appears as a dependency. |
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| 41 | HAVE_LIB[]NAME=yes |
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| 42 | popdef([NAME]) |
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| 43 | popdef([Name]) |
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| 44 | ]) |
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| 45 | |
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| 46 | dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode, [missing-message]) |
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| 47 | dnl searches for libname and the libraries corresponding to explicit and |
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| 48 | dnl implicit dependencies, together with the specified include files and |
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| 49 | dnl the ability to compile and link the specified testcode. The missing-message |
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| 50 | dnl defaults to 'no' and may contain additional hints for the user. |
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| 51 | dnl If found, it sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} |
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| 52 | dnl and LTLIB${NAME} variables and augments the CPPFLAGS variable, and |
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| 53 | dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs |
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| 54 | dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty. |
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| 55 | dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname |
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| 56 | dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. |
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| 57 | AC_DEFUN([AC_LIB_HAVE_LINKFLAGS], |
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| 58 | [ |
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| 59 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
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| 60 | AC_REQUIRE([AC_LIB_RPATH]) |
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| 61 | pushdef([Name],[translit([$1],[./-], [___])]) |
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| 62 | pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], |
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| 63 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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| 64 | |
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| 65 | dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME |
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| 66 | dnl accordingly. |
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| 67 | AC_LIB_LINKFLAGS_BODY([$1], [$2]) |
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| 68 | |
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| 69 | dnl Add $INC[]NAME to CPPFLAGS before performing the following checks, |
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| 70 | dnl because if the user has installed lib[]Name and not disabled its use |
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| 71 | dnl via --without-lib[]Name-prefix, he wants to use it. |
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| 72 | ac_save_CPPFLAGS="$CPPFLAGS" |
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| 73 | AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) |
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| 74 | |
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| 75 | AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [ |
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| 76 | ac_save_LIBS="$LIBS" |
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| 77 | dnl If $LIB[]NAME contains some -l options, add it to the end of LIBS, |
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| 78 | dnl because these -l options might require -L options that are present in |
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| 79 | dnl LIBS. -l options benefit only from the -L options listed before it. |
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| 80 | dnl Otherwise, add it to the front of LIBS, because it may be a static |
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| 81 | dnl library that depends on another static library that is present in LIBS. |
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| 82 | dnl Static libraries benefit only from the static libraries listed after |
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| 83 | dnl it. |
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| 84 | case " $LIB[]NAME" in |
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| 85 | *" -l"*) LIBS="$LIBS $LIB[]NAME" ;; |
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| 86 | *) LIBS="$LIB[]NAME $LIBS" ;; |
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| 87 | esac |
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| 88 | AC_TRY_LINK([$3], [$4], |
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| 89 | [ac_cv_lib[]Name=yes], |
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| 90 | [ac_cv_lib[]Name='m4_if([$5], [], [no], [[$5]])']) |
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| 91 | LIBS="$ac_save_LIBS" |
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| 92 | ]) |
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| 93 | if test "$ac_cv_lib[]Name" = yes; then |
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| 94 | HAVE_LIB[]NAME=yes |
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| 95 | AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the lib][$1 library.]) |
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| 96 | AC_MSG_CHECKING([how to link with lib[]$1]) |
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| 97 | AC_MSG_RESULT([$LIB[]NAME]) |
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| 98 | else |
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| 99 | HAVE_LIB[]NAME=no |
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| 100 | dnl If $LIB[]NAME didn't lead to a usable library, we don't need |
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| 101 | dnl $INC[]NAME either. |
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| 102 | CPPFLAGS="$ac_save_CPPFLAGS" |
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| 103 | LIB[]NAME= |
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| 104 | LTLIB[]NAME= |
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| 105 | LIB[]NAME[]_PREFIX= |
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| 106 | fi |
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| 107 | AC_SUBST([HAVE_LIB]NAME) |
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| 108 | AC_SUBST([LIB]NAME) |
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| 109 | AC_SUBST([LTLIB]NAME) |
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| 110 | AC_SUBST([LIB]NAME[_PREFIX]) |
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| 111 | popdef([NAME]) |
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| 112 | popdef([Name]) |
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| 113 | ]) |
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| 114 | |
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| 115 | dnl Determine the platform dependent parameters needed to use rpath: |
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| 116 | dnl acl_libext, |
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| 117 | dnl acl_shlibext, |
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| 118 | dnl acl_hardcode_libdir_flag_spec, |
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| 119 | dnl acl_hardcode_libdir_separator, |
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| 120 | dnl acl_hardcode_direct, |
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| 121 | dnl acl_hardcode_minus_L. |
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| 122 | AC_DEFUN([AC_LIB_RPATH], |
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| 123 | [ |
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| 124 | dnl Tell automake >= 1.10 to complain if config.rpath is missing. |
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| 125 | m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])]) |
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| 126 | AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS |
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| 127 | AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld |
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| 128 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host |
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| 129 | AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir |
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| 130 | AC_CACHE_CHECK([for shared library run path origin], [acl_cv_rpath], [ |
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| 131 | CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \ |
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| 132 | ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh |
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| 133 | . ./conftest.sh |
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| 134 | rm -f ./conftest.sh |
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| 135 | acl_cv_rpath=done |
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| 136 | ]) |
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| 137 | wl="$acl_cv_wl" |
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| 138 | acl_libext="$acl_cv_libext" |
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| 139 | acl_shlibext="$acl_cv_shlibext" |
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| 140 | acl_libname_spec="$acl_cv_libname_spec" |
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| 141 | acl_library_names_spec="$acl_cv_library_names_spec" |
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| 142 | acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" |
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| 143 | acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" |
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| 144 | acl_hardcode_direct="$acl_cv_hardcode_direct" |
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| 145 | acl_hardcode_minus_L="$acl_cv_hardcode_minus_L" |
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| 146 | dnl Determine whether the user wants rpath handling at all. |
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| 147 | AC_ARG_ENABLE([rpath], |
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| 148 | [ --disable-rpath do not hardcode runtime library paths], |
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| 149 | :, enable_rpath=yes) |
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| 150 | ]) |
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| 151 | |
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| 152 | dnl AC_LIB_FROMPACKAGE(name, package) |
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| 153 | dnl declares that libname comes from the given package. The configure file |
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| 154 | dnl will then not have a --with-libname-prefix option but a |
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| 155 | dnl --with-package-prefix option. Several libraries can come from the same |
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| 156 | dnl package. This declaration must occur before an AC_LIB_LINKFLAGS or similar |
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| 157 | dnl macro call that searches for libname. |
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| 158 | AC_DEFUN([AC_LIB_FROMPACKAGE], |
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| 159 | [ |
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| 160 | pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], |
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| 161 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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| 162 | define([acl_frompackage_]NAME, [$2]) |
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| 163 | popdef([NAME]) |
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| 164 | pushdef([PACK],[$2]) |
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| 165 | pushdef([PACKUP],[translit(PACK,[abcdefghijklmnopqrstuvwxyz./-], |
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| 166 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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| 167 | define([acl_libsinpackage_]PACKUP, |
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| 168 | m4_ifdef([acl_libsinpackage_]PACKUP, [acl_libsinpackage_]PACKUP[[, ]],)[lib$1]) |
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| 169 | popdef([PACKUP]) |
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| 170 | popdef([PACK]) |
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| 171 | ]) |
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| 172 | |
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| 173 | dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and |
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| 174 | dnl the libraries corresponding to explicit and implicit dependencies. |
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| 175 | dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables. |
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| 176 | dnl Also, sets the LIB${NAME}_PREFIX variable to nonempty if libname was found |
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| 177 | dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem. |
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| 178 | AC_DEFUN([AC_LIB_LINKFLAGS_BODY], |
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| 179 | [ |
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| 180 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
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| 181 | pushdef([NAME],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-], |
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| 182 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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| 183 | pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])]) |
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| 184 | pushdef([PACKUP],[translit(PACK,[abcdefghijklmnopqrstuvwxyz./-], |
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| 185 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])]) |
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| 186 | pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])]) |
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| 187 | dnl Autoconf >= 2.61 supports dots in --with options. |
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| 188 | pushdef([P_A_C_K],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[translit(PACK,[.],[_])],PACK)]) |
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| 189 | dnl By default, look in $includedir and $libdir. |
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| 190 | use_additional=yes |
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| 191 | AC_LIB_WITH_FINAL_PREFIX([ |
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| 192 | eval additional_includedir=\"$includedir\" |
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| 193 | eval additional_libdir=\"$libdir\" |
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| 194 | ]) |
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| 195 | AC_ARG_WITH(P_A_C_K[-prefix], |
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| 196 | [[ --with-]]P_A_C_K[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib |
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| 197 | --without-]]P_A_C_K[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], |
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| 198 | [ |
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| 199 | if test "X$withval" = "Xno"; then |
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| 200 | use_additional=no |
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| 201 | else |
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| 202 | if test "X$withval" = "X"; then |
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| 203 | AC_LIB_WITH_FINAL_PREFIX([ |
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| 204 | eval additional_includedir=\"$includedir\" |
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| 205 | eval additional_libdir=\"$libdir\" |
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| 206 | ]) |
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| 207 | else |
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| 208 | additional_includedir="$withval/include" |
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| 209 | additional_libdir="$withval/$acl_libdirstem" |
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| 210 | if test "$acl_libdirstem2" != "$acl_libdirstem" \ |
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| 211 | && ! test -d "$withval/$acl_libdirstem"; then |
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| 212 | additional_libdir="$withval/$acl_libdirstem2" |
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| 213 | fi |
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| 214 | fi |
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| 215 | fi |
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| 216 | ]) |
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| 217 | dnl Search the library and its dependencies in $additional_libdir and |
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| 218 | dnl $LDFLAGS. Using breadth-first-seach. |
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| 219 | LIB[]NAME= |
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| 220 | LTLIB[]NAME= |
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| 221 | INC[]NAME= |
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| 222 | LIB[]NAME[]_PREFIX= |
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| 223 | dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been |
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| 224 | dnl computed. So it has to be reset here. |
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| 225 | HAVE_LIB[]NAME= |
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| 226 | rpathdirs= |
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| 227 | ltrpathdirs= |
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| 228 | names_already_handled= |
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| 229 | names_next_round='$1 $2' |
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| 230 | while test -n "$names_next_round"; do |
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| 231 | names_this_round="$names_next_round" |
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| 232 | names_next_round= |
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| 233 | for name in $names_this_round; do |
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| 234 | already_handled= |
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| 235 | for n in $names_already_handled; do |
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| 236 | if test "$n" = "$name"; then |
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| 237 | already_handled=yes |
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| 238 | break |
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| 239 | fi |
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| 240 | done |
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| 241 | if test -z "$already_handled"; then |
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| 242 | names_already_handled="$names_already_handled $name" |
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| 243 | dnl See if it was already located by an earlier AC_LIB_LINKFLAGS |
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| 244 | dnl or AC_LIB_HAVE_LINKFLAGS call. |
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| 245 | uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'` |
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| 246 | eval value=\"\$HAVE_LIB$uppername\" |
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| 247 | if test -n "$value"; then |
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| 248 | if test "$value" = yes; then |
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| 249 | eval value=\"\$LIB$uppername\" |
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| 250 | test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" |
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| 251 | eval value=\"\$LTLIB$uppername\" |
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| 252 | test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" |
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| 253 | else |
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| 254 | dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined |
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| 255 | dnl that this library doesn't exist. So just drop it. |
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| 256 | : |
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| 257 | fi |
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| 258 | else |
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| 259 | dnl Search the library lib$name in $additional_libdir and $LDFLAGS |
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| 260 | dnl and the already constructed $LIBNAME/$LTLIBNAME. |
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| 261 | found_dir= |
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| 262 | found_la= |
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| 263 | found_so= |
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| 264 | found_a= |
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| 265 | eval libname=\"$acl_libname_spec\" # typically: libname=lib$name |
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| 266 | if test -n "$acl_shlibext"; then |
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| 267 | shrext=".$acl_shlibext" # typically: shrext=.so |
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| 268 | else |
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| 269 | shrext= |
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| 270 | fi |
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| 271 | if test $use_additional = yes; then |
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| 272 | dir="$additional_libdir" |
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| 273 | dnl The same code as in the loop below: |
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| 274 | dnl First look for a shared library. |
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| 275 | if test -n "$acl_shlibext"; then |
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| 276 | if test -f "$dir/$libname$shrext"; then |
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| 277 | found_dir="$dir" |
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| 278 | found_so="$dir/$libname$shrext" |
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| 279 | else |
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| 280 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then |
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| 281 | ver=`(cd "$dir" && \ |
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| 282 | for f in "$libname$shrext".*; do echo "$f"; done \ |
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| 283 | | sed -e "s,^$libname$shrext\\\\.,," \ |
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| 284 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ |
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| 285 | | sed 1q ) 2>/dev/null` |
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| 286 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then |
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| 287 | found_dir="$dir" |
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| 288 | found_so="$dir/$libname$shrext.$ver" |
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| 289 | fi |
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| 290 | else |
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| 291 | eval library_names=\"$acl_library_names_spec\" |
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| 292 | for f in $library_names; do |
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| 293 | if test -f "$dir/$f"; then |
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| 294 | found_dir="$dir" |
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| 295 | found_so="$dir/$f" |
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| 296 | break |
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| 297 | fi |
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| 298 | done |
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| 299 | fi |
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| 300 | fi |
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| 301 | fi |
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| 302 | dnl Then look for a static library. |
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| 303 | if test "X$found_dir" = "X"; then |
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| 304 | if test -f "$dir/$libname.$acl_libext"; then |
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| 305 | found_dir="$dir" |
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| 306 | found_a="$dir/$libname.$acl_libext" |
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| 307 | fi |
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| 308 | fi |
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| 309 | if test "X$found_dir" != "X"; then |
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| 310 | if test -f "$dir/$libname.la"; then |
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| 311 | found_la="$dir/$libname.la" |
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| 312 | fi |
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| 313 | fi |
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| 314 | fi |
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| 315 | if test "X$found_dir" = "X"; then |
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| 316 | for x in $LDFLAGS $LTLIB[]NAME; do |
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| 317 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
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| 318 | case "$x" in |
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| 319 | -L*) |
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| 320 | dir=`echo "X$x" | sed -e 's/^X-L//'` |
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| 321 | dnl First look for a shared library. |
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| 322 | if test -n "$acl_shlibext"; then |
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| 323 | if test -f "$dir/$libname$shrext"; then |
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| 324 | found_dir="$dir" |
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| 325 | found_so="$dir/$libname$shrext" |
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| 326 | else |
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| 327 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then |
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| 328 | ver=`(cd "$dir" && \ |
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| 329 | for f in "$libname$shrext".*; do echo "$f"; done \ |
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| 330 | | sed -e "s,^$libname$shrext\\\\.,," \ |
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| 331 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ |
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| 332 | | sed 1q ) 2>/dev/null` |
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| 333 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then |
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| 334 | found_dir="$dir" |
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| 335 | found_so="$dir/$libname$shrext.$ver" |
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| 336 | fi |
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| 337 | else |
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| 338 | eval library_names=\"$acl_library_names_spec\" |
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| 339 | for f in $library_names; do |
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| 340 | if test -f "$dir/$f"; then |
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| 341 | found_dir="$dir" |
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| 342 | found_so="$dir/$f" |
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| 343 | break |
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| 344 | fi |
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| 345 | done |
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| 346 | fi |
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| 347 | fi |
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| 348 | fi |
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| 349 | dnl Then look for a static library. |
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| 350 | if test "X$found_dir" = "X"; then |
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| 351 | if test -f "$dir/$libname.$acl_libext"; then |
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| 352 | found_dir="$dir" |
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| 353 | found_a="$dir/$libname.$acl_libext" |
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| 354 | fi |
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| 355 | fi |
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| 356 | if test "X$found_dir" != "X"; then |
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| 357 | if test -f "$dir/$libname.la"; then |
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| 358 | found_la="$dir/$libname.la" |
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| 359 | fi |
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| 360 | fi |
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| 361 | ;; |
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| 362 | esac |
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| 363 | if test "X$found_dir" != "X"; then |
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| 364 | break |
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| 365 | fi |
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| 366 | done |
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| 367 | fi |
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| 368 | if test "X$found_dir" != "X"; then |
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| 369 | dnl Found the library. |
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| 370 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" |
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| 371 | if test "X$found_so" != "X"; then |
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| 372 | dnl Linking with a shared library. We attempt to hardcode its |
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| 373 | dnl directory into the executable's runpath, unless it's the |
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| 374 | dnl standard /usr/lib. |
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| 375 | if test "$enable_rpath" = no \ |
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| 376 | || test "X$found_dir" = "X/usr/$acl_libdirstem" \ |
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| 377 | || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then |
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| 378 | dnl No hardcoding is needed. |
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| 379 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
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| 380 | else |
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| 381 | dnl Use an explicit option to hardcode DIR into the resulting |
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| 382 | dnl binary. |
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| 383 | dnl Potentially add DIR to ltrpathdirs. |
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| 384 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. |
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| 385 | haveit= |
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| 386 | for x in $ltrpathdirs; do |
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| 387 | if test "X$x" = "X$found_dir"; then |
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| 388 | haveit=yes |
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| 389 | break |
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| 390 | fi |
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| 391 | done |
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| 392 | if test -z "$haveit"; then |
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| 393 | ltrpathdirs="$ltrpathdirs $found_dir" |
---|
| 394 | fi |
---|
| 395 | dnl The hardcoding into $LIBNAME is system dependent. |
---|
| 396 | if test "$acl_hardcode_direct" = yes; then |
---|
| 397 | dnl Using DIR/libNAME.so during linking hardcodes DIR into the |
---|
| 398 | dnl resulting binary. |
---|
| 399 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
---|
| 400 | else |
---|
| 401 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then |
---|
| 402 | dnl Use an explicit option to hardcode DIR into the resulting |
---|
| 403 | dnl binary. |
---|
| 404 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
---|
| 405 | dnl Potentially add DIR to rpathdirs. |
---|
| 406 | dnl The rpathdirs will be appended to $LIBNAME at the end. |
---|
| 407 | haveit= |
---|
| 408 | for x in $rpathdirs; do |
---|
| 409 | if test "X$x" = "X$found_dir"; then |
---|
| 410 | haveit=yes |
---|
| 411 | break |
---|
| 412 | fi |
---|
| 413 | done |
---|
| 414 | if test -z "$haveit"; then |
---|
| 415 | rpathdirs="$rpathdirs $found_dir" |
---|
| 416 | fi |
---|
| 417 | else |
---|
| 418 | dnl Rely on "-L$found_dir". |
---|
| 419 | dnl But don't add it if it's already contained in the LDFLAGS |
---|
| 420 | dnl or the already constructed $LIBNAME |
---|
| 421 | haveit= |
---|
| 422 | for x in $LDFLAGS $LIB[]NAME; do |
---|
| 423 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
---|
| 424 | if test "X$x" = "X-L$found_dir"; then |
---|
| 425 | haveit=yes |
---|
| 426 | break |
---|
| 427 | fi |
---|
| 428 | done |
---|
| 429 | if test -z "$haveit"; then |
---|
| 430 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" |
---|
| 431 | fi |
---|
| 432 | if test "$acl_hardcode_minus_L" != no; then |
---|
| 433 | dnl FIXME: Not sure whether we should use |
---|
| 434 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" |
---|
| 435 | dnl here. |
---|
| 436 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
---|
| 437 | else |
---|
| 438 | dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH |
---|
| 439 | dnl here, because this doesn't fit in flags passed to the |
---|
| 440 | dnl compiler. So give up. No hardcoding. This affects only |
---|
| 441 | dnl very old systems. |
---|
| 442 | dnl FIXME: Not sure whether we should use |
---|
| 443 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" |
---|
| 444 | dnl here. |
---|
| 445 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" |
---|
| 446 | fi |
---|
| 447 | fi |
---|
| 448 | fi |
---|
| 449 | fi |
---|
| 450 | else |
---|
| 451 | if test "X$found_a" != "X"; then |
---|
| 452 | dnl Linking with a static library. |
---|
| 453 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" |
---|
| 454 | else |
---|
| 455 | dnl We shouldn't come here, but anyway it's good to have a |
---|
| 456 | dnl fallback. |
---|
| 457 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" |
---|
| 458 | fi |
---|
| 459 | fi |
---|
| 460 | dnl Assume the include files are nearby. |
---|
| 461 | additional_includedir= |
---|
| 462 | case "$found_dir" in |
---|
| 463 | */$acl_libdirstem | */$acl_libdirstem/) |
---|
| 464 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` |
---|
| 465 | if test "$name" = '$1'; then |
---|
| 466 | LIB[]NAME[]_PREFIX="$basedir" |
---|
| 467 | fi |
---|
| 468 | additional_includedir="$basedir/include" |
---|
| 469 | ;; |
---|
| 470 | */$acl_libdirstem2 | */$acl_libdirstem2/) |
---|
| 471 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'` |
---|
| 472 | if test "$name" = '$1'; then |
---|
| 473 | LIB[]NAME[]_PREFIX="$basedir" |
---|
| 474 | fi |
---|
| 475 | additional_includedir="$basedir/include" |
---|
| 476 | ;; |
---|
| 477 | esac |
---|
| 478 | if test "X$additional_includedir" != "X"; then |
---|
| 479 | dnl Potentially add $additional_includedir to $INCNAME. |
---|
| 480 | dnl But don't add it |
---|
| 481 | dnl 1. if it's the standard /usr/include, |
---|
| 482 | dnl 2. if it's /usr/local/include and we are using GCC on Linux, |
---|
| 483 | dnl 3. if it's already present in $CPPFLAGS or the already |
---|
| 484 | dnl constructed $INCNAME, |
---|
| 485 | dnl 4. if it doesn't exist as a directory. |
---|
| 486 | if test "X$additional_includedir" != "X/usr/include"; then |
---|
| 487 | haveit= |
---|
| 488 | if test "X$additional_includedir" = "X/usr/local/include"; then |
---|
| 489 | if test -n "$GCC"; then |
---|
| 490 | case $host_os in |
---|
| 491 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
---|
| 492 | esac |
---|
| 493 | fi |
---|
| 494 | fi |
---|
| 495 | if test -z "$haveit"; then |
---|
| 496 | for x in $CPPFLAGS $INC[]NAME; do |
---|
| 497 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
---|
| 498 | if test "X$x" = "X-I$additional_includedir"; then |
---|
| 499 | haveit=yes |
---|
| 500 | break |
---|
| 501 | fi |
---|
| 502 | done |
---|
| 503 | if test -z "$haveit"; then |
---|
| 504 | if test -d "$additional_includedir"; then |
---|
| 505 | dnl Really add $additional_includedir to $INCNAME. |
---|
| 506 | INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" |
---|
| 507 | fi |
---|
| 508 | fi |
---|
| 509 | fi |
---|
| 510 | fi |
---|
| 511 | fi |
---|
| 512 | dnl Look for dependencies. |
---|
| 513 | if test -n "$found_la"; then |
---|
| 514 | dnl Read the .la file. It defines the variables |
---|
| 515 | dnl dlname, library_names, old_library, dependency_libs, current, |
---|
| 516 | dnl age, revision, installed, dlopen, dlpreopen, libdir. |
---|
| 517 | save_libdir="$libdir" |
---|
| 518 | case "$found_la" in |
---|
| 519 | */* | *\\*) . "$found_la" ;; |
---|
| 520 | *) . "./$found_la" ;; |
---|
| 521 | esac |
---|
| 522 | libdir="$save_libdir" |
---|
| 523 | dnl We use only dependency_libs. |
---|
| 524 | for dep in $dependency_libs; do |
---|
| 525 | case "$dep" in |
---|
| 526 | -L*) |
---|
| 527 | additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` |
---|
| 528 | dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. |
---|
| 529 | dnl But don't add it |
---|
| 530 | dnl 1. if it's the standard /usr/lib, |
---|
| 531 | dnl 2. if it's /usr/local/lib and we are using GCC on Linux, |
---|
| 532 | dnl 3. if it's already present in $LDFLAGS or the already |
---|
| 533 | dnl constructed $LIBNAME, |
---|
| 534 | dnl 4. if it doesn't exist as a directory. |
---|
| 535 | if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \ |
---|
| 536 | && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then |
---|
| 537 | haveit= |
---|
| 538 | if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \ |
---|
| 539 | || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then |
---|
| 540 | if test -n "$GCC"; then |
---|
| 541 | case $host_os in |
---|
| 542 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
---|
| 543 | esac |
---|
| 544 | fi |
---|
| 545 | fi |
---|
| 546 | if test -z "$haveit"; then |
---|
| 547 | haveit= |
---|
| 548 | for x in $LDFLAGS $LIB[]NAME; do |
---|
| 549 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
---|
| 550 | if test "X$x" = "X-L$additional_libdir"; then |
---|
| 551 | haveit=yes |
---|
| 552 | break |
---|
| 553 | fi |
---|
| 554 | done |
---|
| 555 | if test -z "$haveit"; then |
---|
| 556 | if test -d "$additional_libdir"; then |
---|
| 557 | dnl Really add $additional_libdir to $LIBNAME. |
---|
| 558 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" |
---|
| 559 | fi |
---|
| 560 | fi |
---|
| 561 | haveit= |
---|
| 562 | for x in $LDFLAGS $LTLIB[]NAME; do |
---|
| 563 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
---|
| 564 | if test "X$x" = "X-L$additional_libdir"; then |
---|
| 565 | haveit=yes |
---|
| 566 | break |
---|
| 567 | fi |
---|
| 568 | done |
---|
| 569 | if test -z "$haveit"; then |
---|
| 570 | if test -d "$additional_libdir"; then |
---|
| 571 | dnl Really add $additional_libdir to $LTLIBNAME. |
---|
| 572 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" |
---|
| 573 | fi |
---|
| 574 | fi |
---|
| 575 | fi |
---|
| 576 | fi |
---|
| 577 | ;; |
---|
| 578 | -R*) |
---|
| 579 | dir=`echo "X$dep" | sed -e 's/^X-R//'` |
---|
| 580 | if test "$enable_rpath" != no; then |
---|
| 581 | dnl Potentially add DIR to rpathdirs. |
---|
| 582 | dnl The rpathdirs will be appended to $LIBNAME at the end. |
---|
| 583 | haveit= |
---|
| 584 | for x in $rpathdirs; do |
---|
| 585 | if test "X$x" = "X$dir"; then |
---|
| 586 | haveit=yes |
---|
| 587 | break |
---|
| 588 | fi |
---|
| 589 | done |
---|
| 590 | if test -z "$haveit"; then |
---|
| 591 | rpathdirs="$rpathdirs $dir" |
---|
| 592 | fi |
---|
| 593 | dnl Potentially add DIR to ltrpathdirs. |
---|
| 594 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. |
---|
| 595 | haveit= |
---|
| 596 | for x in $ltrpathdirs; do |
---|
| 597 | if test "X$x" = "X$dir"; then |
---|
| 598 | haveit=yes |
---|
| 599 | break |
---|
| 600 | fi |
---|
| 601 | done |
---|
| 602 | if test -z "$haveit"; then |
---|
| 603 | ltrpathdirs="$ltrpathdirs $dir" |
---|
| 604 | fi |
---|
| 605 | fi |
---|
| 606 | ;; |
---|
| 607 | -l*) |
---|
| 608 | dnl Handle this in the next round. |
---|
| 609 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` |
---|
| 610 | ;; |
---|
| 611 | *.la) |
---|
| 612 | dnl Handle this in the next round. Throw away the .la's |
---|
| 613 | dnl directory; it is already contained in a preceding -L |
---|
| 614 | dnl option. |
---|
| 615 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` |
---|
| 616 | ;; |
---|
| 617 | *) |
---|
| 618 | dnl Most likely an immediate library name. |
---|
| 619 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" |
---|
| 620 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" |
---|
| 621 | ;; |
---|
| 622 | esac |
---|
| 623 | done |
---|
| 624 | fi |
---|
| 625 | else |
---|
| 626 | dnl Didn't find the library; assume it is in the system directories |
---|
| 627 | dnl known to the linker and runtime loader. (All the system |
---|
| 628 | dnl directories known to the linker should also be known to the |
---|
| 629 | dnl runtime loader, otherwise the system is severely misconfigured.) |
---|
| 630 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" |
---|
| 631 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" |
---|
| 632 | fi |
---|
| 633 | fi |
---|
| 634 | fi |
---|
| 635 | done |
---|
| 636 | done |
---|
| 637 | if test "X$rpathdirs" != "X"; then |
---|
| 638 | if test -n "$acl_hardcode_libdir_separator"; then |
---|
| 639 | dnl Weird platform: only the last -rpath option counts, the user must |
---|
| 640 | dnl pass all path elements in one option. We can arrange that for a |
---|
| 641 | dnl single library, but not when more than one $LIBNAMEs are used. |
---|
| 642 | alldirs= |
---|
| 643 | for found_dir in $rpathdirs; do |
---|
| 644 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" |
---|
| 645 | done |
---|
| 646 | dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. |
---|
| 647 | acl_save_libdir="$libdir" |
---|
| 648 | libdir="$alldirs" |
---|
| 649 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
---|
| 650 | libdir="$acl_save_libdir" |
---|
| 651 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" |
---|
| 652 | else |
---|
| 653 | dnl The -rpath options are cumulative. |
---|
| 654 | for found_dir in $rpathdirs; do |
---|
| 655 | acl_save_libdir="$libdir" |
---|
| 656 | libdir="$found_dir" |
---|
| 657 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
---|
| 658 | libdir="$acl_save_libdir" |
---|
| 659 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" |
---|
| 660 | done |
---|
| 661 | fi |
---|
| 662 | fi |
---|
| 663 | if test "X$ltrpathdirs" != "X"; then |
---|
| 664 | dnl When using libtool, the option that works for both libraries and |
---|
| 665 | dnl executables is -R. The -R options are cumulative. |
---|
| 666 | for found_dir in $ltrpathdirs; do |
---|
| 667 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" |
---|
| 668 | done |
---|
| 669 | fi |
---|
| 670 | popdef([P_A_C_K]) |
---|
| 671 | popdef([PACKLIBS]) |
---|
| 672 | popdef([PACKUP]) |
---|
| 673 | popdef([PACK]) |
---|
| 674 | popdef([NAME]) |
---|
| 675 | ]) |
---|
| 676 | |
---|
| 677 | dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, |
---|
| 678 | dnl unless already present in VAR. |
---|
| 679 | dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes |
---|
| 680 | dnl contains two or three consecutive elements that belong together. |
---|
| 681 | AC_DEFUN([AC_LIB_APPENDTOVAR], |
---|
| 682 | [ |
---|
| 683 | for element in [$2]; do |
---|
| 684 | haveit= |
---|
| 685 | for x in $[$1]; do |
---|
| 686 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
---|
| 687 | if test "X$x" = "X$element"; then |
---|
| 688 | haveit=yes |
---|
| 689 | break |
---|
| 690 | fi |
---|
| 691 | done |
---|
| 692 | if test -z "$haveit"; then |
---|
| 693 | [$1]="${[$1]}${[$1]:+ }$element" |
---|
| 694 | fi |
---|
| 695 | done |
---|
| 696 | ]) |
---|
| 697 | |
---|
| 698 | dnl For those cases where a variable contains several -L and -l options |
---|
| 699 | dnl referring to unknown libraries and directories, this macro determines the |
---|
| 700 | dnl necessary additional linker options for the runtime path. |
---|
| 701 | dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL]) |
---|
| 702 | dnl sets LDADDVAR to linker options needed together with LIBSVALUE. |
---|
| 703 | dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed, |
---|
| 704 | dnl otherwise linking without libtool is assumed. |
---|
| 705 | AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], |
---|
| 706 | [ |
---|
| 707 | AC_REQUIRE([AC_LIB_RPATH]) |
---|
| 708 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
---|
| 709 | $1= |
---|
| 710 | if test "$enable_rpath" != no; then |
---|
| 711 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then |
---|
| 712 | dnl Use an explicit option to hardcode directories into the resulting |
---|
| 713 | dnl binary. |
---|
| 714 | rpathdirs= |
---|
| 715 | next= |
---|
| 716 | for opt in $2; do |
---|
| 717 | if test -n "$next"; then |
---|
| 718 | dir="$next" |
---|
| 719 | dnl No need to hardcode the standard /usr/lib. |
---|
| 720 | if test "X$dir" != "X/usr/$acl_libdirstem" \ |
---|
| 721 | && test "X$dir" != "X/usr/$acl_libdirstem2"; then |
---|
| 722 | rpathdirs="$rpathdirs $dir" |
---|
| 723 | fi |
---|
| 724 | next= |
---|
| 725 | else |
---|
| 726 | case $opt in |
---|
| 727 | -L) next=yes ;; |
---|
| 728 | -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` |
---|
| 729 | dnl No need to hardcode the standard /usr/lib. |
---|
| 730 | if test "X$dir" != "X/usr/$acl_libdirstem" \ |
---|
| 731 | && test "X$dir" != "X/usr/$acl_libdirstem2"; then |
---|
| 732 | rpathdirs="$rpathdirs $dir" |
---|
| 733 | fi |
---|
| 734 | next= ;; |
---|
| 735 | *) next= ;; |
---|
| 736 | esac |
---|
| 737 | fi |
---|
| 738 | done |
---|
| 739 | if test "X$rpathdirs" != "X"; then |
---|
| 740 | if test -n ""$3""; then |
---|
| 741 | dnl libtool is used for linking. Use -R options. |
---|
| 742 | for dir in $rpathdirs; do |
---|
| 743 | $1="${$1}${$1:+ }-R$dir" |
---|
| 744 | done |
---|
| 745 | else |
---|
| 746 | dnl The linker is used for linking directly. |
---|
| 747 | if test -n "$acl_hardcode_libdir_separator"; then |
---|
| 748 | dnl Weird platform: only the last -rpath option counts, the user |
---|
| 749 | dnl must pass all path elements in one option. |
---|
| 750 | alldirs= |
---|
| 751 | for dir in $rpathdirs; do |
---|
| 752 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" |
---|
| 753 | done |
---|
| 754 | acl_save_libdir="$libdir" |
---|
| 755 | libdir="$alldirs" |
---|
| 756 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
---|
| 757 | libdir="$acl_save_libdir" |
---|
| 758 | $1="$flag" |
---|
| 759 | else |
---|
| 760 | dnl The -rpath options are cumulative. |
---|
| 761 | for dir in $rpathdirs; do |
---|
| 762 | acl_save_libdir="$libdir" |
---|
| 763 | libdir="$dir" |
---|
| 764 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
---|
| 765 | libdir="$acl_save_libdir" |
---|
| 766 | $1="${$1}${$1:+ }$flag" |
---|
| 767 | done |
---|
| 768 | fi |
---|
| 769 | fi |
---|
| 770 | fi |
---|
| 771 | fi |
---|
| 772 | fi |
---|
| 773 | AC_SUBST([$1]) |
---|
| 774 | ]) |
---|