1 # lib-prefix.m4 serial 2 (gettext-0.12) 2 dnl Copyright (C) 2001-2003 Free Software Foundation, Inc. 3 dnl This file is free software, distributed under the terms of the GNU 4 dnl General Public License. As a special exception to the GNU General 5 dnl Public License, this file may be distributed as part of a program 6 dnl that contains a configuration script generated by Autoconf, under 7 dnl the same distribution terms as the rest of that program. 8 9 dnl From Bruno Haible. 10 11 dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and 12 dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't 13 dnl require excessive bracketing. 14 ifdef([AC_HELP_STRING], 15 [AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], 16 [AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) 17 18 dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed 19 dnl to access previously installed libraries. The basic assumption is that 20 dnl a user will want packages to use other packages he previously installed 21 dnl with the same --prefix option. 22 dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate 23 dnl libraries, but is otherwise very convenient. 24 AC_DEFUN([AC_LIB_PREFIX], 25 [ 26 AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) 27 AC_REQUIRE([AC_PROG_CC]) 28 AC_REQUIRE([AC_CANONICAL_HOST]) 29 AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) 30 dnl By default, look in $includedir and $libdir. 31 use_additional=yes 32 AC_LIB_WITH_FINAL_PREFIX([ 33 eval additional_includedir=\"$includedir\" 34 eval additional_libdir=\"$libdir\" 35 ]) 36 AC_LIB_ARG_WITH([lib-prefix], 37 [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib 38 --without-lib-prefix don't search for libraries in includedir and libdir], 39 [ 40 if test "X$withval" = "Xno"; then 41 use_additional=no 42 else 43 if test "X$withval" = "X"; then 44 AC_LIB_WITH_FINAL_PREFIX([ 45 eval additional_includedir=\"$includedir\" 46 eval additional_libdir=\"$libdir\" 47 ]) 48 else 49 additional_includedir="$withval/include" 50 additional_libdir="$withval/lib" 51 fi 52 fi 53 ]) 54 if test $use_additional = yes; then 55 dnl Potentially add $additional_includedir to $CPPFLAGS. 56 dnl But don't add it 57 dnl 1. if it's the standard /usr/include, 58 dnl 2. if it's already present in $CPPFLAGS, 59 dnl 3. if it's /usr/local/include and we are using GCC on Linux, 60 dnl 4. if it doesn't exist as a directory. 61 if test "X$additional_includedir" != "X/usr/include"; then 62 haveit= 63 for x in $CPPFLAGS; do 64 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) 65 if test "X$x" = "X-I$additional_includedir"; then 66 haveit=yes 67 break 68 fi 69 done 70 if test -z "$haveit"; then 71 if test "X$additional_includedir" = "X/usr/local/include"; then 72 if test -n "$GCC"; then 73 case $host_os in 74 linux*) haveit=yes;; 75 esac 76 fi 77 fi 78 if test -z "$haveit"; then 79 if test -d "$additional_includedir"; then 80 dnl Really add $additional_includedir to $CPPFLAGS. 81 CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" 82 fi 83 fi 84 fi 85 fi 86 dnl Potentially add $additional_libdir to $LDFLAGS. 87 dnl But don't add it 88 dnl 1. if it's the standard /usr/lib, 89 dnl 2. if it's already present in $LDFLAGS, 90 dnl 3. if it's /usr/local/lib and we are using GCC on Linux, 91 dnl 4. if it doesn't exist as a directory. 92 if test "X$additional_libdir" != "X/usr/lib"; then 93 haveit= 94 for x in $LDFLAGS; do 95 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) 96 if test "X$x" = "X-L$additional_libdir"; then 97 haveit=yes 98 break 99 fi 100 done 101 if test -z "$haveit"; then 102 if test "X$additional_libdir" = "X/usr/local/lib"; then 103 if test -n "$GCC"; then 104 case $host_os in 105 linux*) haveit=yes;; 106 esac 107 fi 108 fi 109 if test -z "$haveit"; then 110 if test -d "$additional_libdir"; then 111 dnl Really add $additional_libdir to $LDFLAGS. 112 LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" 113 fi 114 fi 115 fi 116 fi 117 fi 118 ]) 119 120 dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, 121 dnl acl_final_exec_prefix, containing the values to which $prefix and 122 dnl $exec_prefix will expand at the end of the configure script. 123 AC_DEFUN([AC_LIB_PREPARE_PREFIX], 124 [ 125 dnl Unfortunately, prefix and exec_prefix get only finally determined 126 dnl at the end of configure. 127 if test "X$prefix" = "XNONE"; then 128 acl_final_prefix="$ac_default_prefix" 129 else 130 acl_final_prefix="$prefix" 131 fi 132 if test "X$exec_prefix" = "XNONE"; then 133 acl_final_exec_prefix='${prefix}' 134 else 135 acl_final_exec_prefix="$exec_prefix" 136 fi 137 acl_save_prefix="$prefix" 138 prefix="$acl_final_prefix" 139 eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" 140 prefix="$acl_save_prefix" 141 ]) 142 143 dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the 144 dnl variables prefix and exec_prefix bound to the values they will have 145 dnl at the end of the configure script. 146 AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], 147 [ 148 acl_save_prefix="$prefix" 149 prefix="$acl_final_prefix" 150 acl_save_exec_prefix="$exec_prefix" 151 exec_prefix="$acl_final_exec_prefix" 152 $1 153 exec_prefix="$acl_save_exec_prefix" 154 prefix="$acl_save_prefix" 155 ]) 156
