| 1 | # lib-prefix.m4 serial 7 (gettext-0.18)
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| 2 | dnl Copyright (C) 2001-2005, 2008-2014 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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