[4924] | 1 | # lib-prefix.m4 serial 7 (gettext-0.18) |
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| 2 | dnl Copyright (C) 2001-2005, 2008-2010 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 | dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and |
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| 10 | dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't |
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| 11 | dnl require excessive bracketing. |
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| 12 | ifdef([AC_HELP_STRING], |
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| 13 | [AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], |
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| 14 | [AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) |
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| 15 | |
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| 16 | dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed |
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| 17 | dnl to access previously installed libraries. The basic assumption is that |
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| 18 | dnl a user will want packages to use other packages he previously installed |
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| 19 | dnl with the same --prefix option. |
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| 20 | dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate |
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| 21 | dnl libraries, but is otherwise very convenient. |
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| 22 | AC_DEFUN([AC_LIB_PREFIX], |
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| 23 | [ |
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| 24 | AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) |
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| 25 | AC_REQUIRE([AC_PROG_CC]) |
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| 26 | AC_REQUIRE([AC_CANONICAL_HOST]) |
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| 27 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
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| 28 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
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| 29 | dnl By default, look in $includedir and $libdir. |
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| 30 | use_additional=yes |
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| 31 | AC_LIB_WITH_FINAL_PREFIX([ |
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| 32 | eval additional_includedir=\"$includedir\" |
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| 33 | eval additional_libdir=\"$libdir\" |
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| 34 | ]) |
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| 35 | AC_LIB_ARG_WITH([lib-prefix], |
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| 36 | [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib |
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| 37 | --without-lib-prefix don't search for libraries in includedir and libdir], |
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| 38 | [ |
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| 39 | if test "X$withval" = "Xno"; then |
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| 40 | use_additional=no |
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| 41 | else |
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| 42 | if test "X$withval" = "X"; then |
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| 43 | AC_LIB_WITH_FINAL_PREFIX([ |
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| 44 | eval additional_includedir=\"$includedir\" |
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| 45 | eval additional_libdir=\"$libdir\" |
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| 46 | ]) |
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| 47 | else |
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| 48 | additional_includedir="$withval/include" |
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| 49 | additional_libdir="$withval/$acl_libdirstem" |
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| 50 | fi |
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| 51 | fi |
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| 52 | ]) |
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| 53 | if test $use_additional = yes; then |
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| 54 | dnl Potentially add $additional_includedir to $CPPFLAGS. |
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| 55 | dnl But don't add it |
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| 56 | dnl 1. if it's the standard /usr/include, |
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| 57 | dnl 2. if it's already present in $CPPFLAGS, |
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| 58 | dnl 3. if it's /usr/local/include and we are using GCC on Linux, |
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| 59 | dnl 4. if it doesn't exist as a directory. |
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| 60 | if test "X$additional_includedir" != "X/usr/include"; then |
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| 61 | haveit= |
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| 62 | for x in $CPPFLAGS; do |
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| 63 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
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| 64 | if test "X$x" = "X-I$additional_includedir"; then |
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| 65 | haveit=yes |
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| 66 | break |
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| 67 | fi |
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| 68 | done |
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| 69 | if test -z "$haveit"; then |
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| 70 | if test "X$additional_includedir" = "X/usr/local/include"; then |
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| 71 | if test -n "$GCC"; then |
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| 72 | case $host_os in |
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| 73 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
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| 74 | esac |
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| 75 | fi |
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| 76 | fi |
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| 77 | if test -z "$haveit"; then |
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| 78 | if test -d "$additional_includedir"; then |
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| 79 | dnl Really add $additional_includedir to $CPPFLAGS. |
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| 80 | CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" |
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| 81 | fi |
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| 82 | fi |
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| 83 | fi |
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| 84 | fi |
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| 85 | dnl Potentially add $additional_libdir to $LDFLAGS. |
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| 86 | dnl But don't add it |
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| 87 | dnl 1. if it's the standard /usr/lib, |
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| 88 | dnl 2. if it's already present in $LDFLAGS, |
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| 89 | dnl 3. if it's /usr/local/lib and we are using GCC on Linux, |
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| 90 | dnl 4. if it doesn't exist as a directory. |
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| 91 | if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then |
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| 92 | haveit= |
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| 93 | for x in $LDFLAGS; do |
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| 94 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
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| 95 | if test "X$x" = "X-L$additional_libdir"; then |
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| 96 | haveit=yes |
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| 97 | break |
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| 98 | fi |
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| 99 | done |
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| 100 | if test -z "$haveit"; then |
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| 101 | if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then |
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| 102 | if test -n "$GCC"; then |
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| 103 | case $host_os in |
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| 104 | linux*) haveit=yes;; |
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| 105 | esac |
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| 106 | fi |
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| 107 | fi |
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| 108 | if test -z "$haveit"; then |
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| 109 | if test -d "$additional_libdir"; then |
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| 110 | dnl Really add $additional_libdir to $LDFLAGS. |
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| 111 | LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" |
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| 112 | fi |
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| 113 | fi |
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| 114 | fi |
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| 115 | fi |
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| 116 | fi |
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| 117 | ]) |
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| 118 | |
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| 119 | dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, |
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| 120 | dnl acl_final_exec_prefix, containing the values to which $prefix and |
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| 121 | dnl $exec_prefix will expand at the end of the configure script. |
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| 122 | AC_DEFUN([AC_LIB_PREPARE_PREFIX], |
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| 123 | [ |
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| 124 | dnl Unfortunately, prefix and exec_prefix get only finally determined |
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| 125 | dnl at the end of configure. |
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| 126 | if test "X$prefix" = "XNONE"; then |
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| 127 | acl_final_prefix="$ac_default_prefix" |
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| 128 | else |
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| 129 | acl_final_prefix="$prefix" |
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| 130 | fi |
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| 131 | if test "X$exec_prefix" = "XNONE"; then |
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| 132 | acl_final_exec_prefix='${prefix}' |
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| 133 | else |
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| 134 | acl_final_exec_prefix="$exec_prefix" |
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| 135 | fi |
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| 136 | acl_save_prefix="$prefix" |
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| 137 | prefix="$acl_final_prefix" |
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| 138 | eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" |
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| 139 | prefix="$acl_save_prefix" |
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| 140 | ]) |
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| 141 | |
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| 142 | dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the |
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| 143 | dnl variables prefix and exec_prefix bound to the values they will have |
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| 144 | dnl at the end of the configure script. |
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| 145 | AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], |
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| 146 | [ |
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| 147 | acl_save_prefix="$prefix" |
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| 148 | prefix="$acl_final_prefix" |
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| 149 | acl_save_exec_prefix="$exec_prefix" |
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| 150 | exec_prefix="$acl_final_exec_prefix" |
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| 151 | $1 |
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| 152 | exec_prefix="$acl_save_exec_prefix" |
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| 153 | prefix="$acl_save_prefix" |
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| 154 | ]) |
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| 155 | |
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| 156 | dnl AC_LIB_PREPARE_MULTILIB creates |
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| 157 | dnl - a variable acl_libdirstem, containing the basename of the libdir, either |
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| 158 | dnl "lib" or "lib64" or "lib/64", |
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| 159 | dnl - a variable acl_libdirstem2, as a secondary possible value for |
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| 160 | dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or |
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| 161 | dnl "lib/amd64". |
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| 162 | AC_DEFUN([AC_LIB_PREPARE_MULTILIB], |
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| 163 | [ |
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| 164 | dnl There is no formal standard regarding lib and lib64. |
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| 165 | dnl On glibc systems, the current practice is that on a system supporting |
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| 166 | dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under |
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| 167 | dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine |
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| 168 | dnl the compiler's default mode by looking at the compiler's library search |
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| 169 | dnl path. If at least one of its elements ends in /lib64 or points to a |
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| 170 | dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI. |
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| 171 | dnl Otherwise we use the default, namely "lib". |
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| 172 | dnl On Solaris systems, the current practice is that on a system supporting |
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| 173 | dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under |
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| 174 | dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or |
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| 175 | dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. |
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| 176 | AC_REQUIRE([AC_CANONICAL_HOST]) |
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| 177 | acl_libdirstem=lib |
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| 178 | acl_libdirstem2= |
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| 179 | case "$host_os" in |
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| 180 | solaris*) |
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| 181 | dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment |
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| 182 | dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>. |
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| 183 | dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." |
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| 184 | dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the |
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| 185 | dnl symlink is missing, so we set acl_libdirstem2 too. |
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| 186 | AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit], |
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| 187 | [AC_EGREP_CPP([sixtyfour bits], [ |
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| 188 | #ifdef _LP64 |
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| 189 | sixtyfour bits |
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| 190 | #endif |
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| 191 | ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no]) |
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| 192 | ]) |
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| 193 | if test $gl_cv_solaris_64bit = yes; then |
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| 194 | acl_libdirstem=lib/64 |
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| 195 | case "$host_cpu" in |
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| 196 | sparc*) acl_libdirstem2=lib/sparcv9 ;; |
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| 197 | i*86 | x86_64) acl_libdirstem2=lib/amd64 ;; |
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| 198 | esac |
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| 199 | fi |
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| 200 | ;; |
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| 201 | *) |
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| 202 | searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` |
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| 203 | if test -n "$searchpath"; then |
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| 204 | acl_save_IFS="${IFS= }"; IFS=":" |
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| 205 | for searchdir in $searchpath; do |
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| 206 | if test -d "$searchdir"; then |
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| 207 | case "$searchdir" in |
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| 208 | */lib64/ | */lib64 ) acl_libdirstem=lib64 ;; |
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| 209 | */../ | */.. ) |
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| 210 | # Better ignore directories of this form. They are misleading. |
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| 211 | ;; |
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| 212 | *) searchdir=`cd "$searchdir" && pwd` |
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| 213 | case "$searchdir" in |
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| 214 | */lib64 ) acl_libdirstem=lib64 ;; |
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| 215 | esac ;; |
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| 216 | esac |
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| 217 | fi |
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| 218 | done |
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| 219 | IFS="$acl_save_IFS" |
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| 220 | fi |
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| 221 | ;; |
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| 222 | esac |
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| 223 | test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" |
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| 224 | ]) |
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