lib-prefix.m4
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- # lib-prefix.m4 serial 1 (gettext-0.11)
- dnl Copyright (C) 2001-2002 Free Software Foundation, Inc.
- dnl This file is free software, distributed under the terms of the GNU
- dnl General Public License. As a special exception to the GNU General
- dnl Public License, this file may be distributed as part of a program
- dnl that contains a configuration script generated by Autoconf, under
- dnl the same distribution terms as the rest of that program.
- dnl From Bruno Haible.
- dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
- dnl to access previously installed libraries. The basic assumption is that
- dnl a user will want packages to use other packages he previously installed
- dnl with the same --prefix option.
- dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
- dnl libraries, but is otherwise very convenient.
- AC_DEFUN([AC_LIB_PREFIX],
- [
- AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
- AC_REQUIRE([AC_PROG_CC])
- AC_REQUIRE([AC_CANONICAL_HOST])
- AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
- dnl By default, look in $includedir and $libdir.
- use_additional=yes
- AC_LIB_WITH_FINAL_PREFIX([
- eval additional_includedir="$includedir"
- eval additional_libdir="$libdir"
- ])
- AC_ARG_WITH([lib-prefix],
- [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
- --without-lib-prefix don't search for libraries in includedir and libdir],
- [
- if test "X$withval" = "Xno"; then
- use_additional=no
- else
- if test "X$withval" = "X"; then
- AC_LIB_WITH_FINAL_PREFIX([
- eval additional_includedir="$includedir"
- eval additional_libdir="$libdir"
- ])
- else
- additional_includedir="$withval/include"
- additional_libdir="$withval/lib"
- fi
- fi
- ])
- if test $use_additional = yes; then
- dnl Potentially add $additional_includedir to $CPPFLAGS.
- dnl But don't add it
- dnl 1. if it's the standard /usr/include,
- dnl 2. if it's already present in $CPPFLAGS,
- dnl 3. if it's /usr/local/include and we are using GCC on Linux,
- dnl 4. if it doesn't exist as a directory.
- if test "X$additional_includedir" != "X/usr/include"; then
- haveit=
- for x in $CPPFLAGS; do
- AC_LIB_WITH_FINAL_PREFIX([eval x="$x"])
- if test "X$x" = "X-I$additional_includedir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- if test "X$additional_includedir" = "X/usr/local/include"; then
- if test -n "$GCC"; then
- case $host_os in
- linux*) haveit=yes;;
- esac
- fi
- fi
- if test -z "$haveit"; then
- if test -d "$additional_includedir"; then
- dnl Really add $additional_includedir to $CPPFLAGS.
- CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
- fi
- fi
- fi
- fi
- dnl Potentially add $additional_libdir to $LDFLAGS.
- dnl But don't add it
- dnl 1. if it's the standard /usr/lib,
- dnl 2. if it's already present in $LDFLAGS,
- dnl 3. if it's /usr/local/lib and we are using GCC on Linux,
- dnl 4. if it doesn't exist as a directory.
- if test "X$additional_libdir" != "X/usr/lib"; then
- haveit=
- for x in $LDFLAGS; do
- AC_LIB_WITH_FINAL_PREFIX([eval x="$x"])
- if test "X$x" = "X-L$additional_libdir"; then
- haveit=yes
- break
- fi
- done
- if test -z "$haveit"; then
- if test "X$additional_libdir" = "X/usr/local/lib"; then
- if test -n "$GCC"; then
- case $host_os in
- linux*) haveit=yes;;
- esac
- fi
- fi
- if test -z "$haveit"; then
- if test -d "$additional_libdir"; then
- dnl Really add $additional_libdir to $LDFLAGS.
- LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
- fi
- fi
- fi
- fi
- fi
- ])
- dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
- dnl acl_final_exec_prefix, containing the values to which $prefix and
- dnl $exec_prefix will expand at the end of the configure script.
- AC_DEFUN([AC_LIB_PREPARE_PREFIX],
- [
- dnl Unfortunately, prefix and exec_prefix get only finally determined
- dnl at the end of configure.
- if test "X$prefix" = "XNONE"; then
- acl_final_prefix="$ac_default_prefix"
- else
- acl_final_prefix="$prefix"
- fi
- if test "X$exec_prefix" = "XNONE"; then
- acl_final_exec_prefix='${prefix}'
- else
- acl_final_exec_prefix="$exec_prefix"
- fi
- acl_save_prefix="$prefix"
- prefix="$acl_final_prefix"
- eval acl_final_exec_prefix="$acl_final_exec_prefix"
- prefix="$acl_save_prefix"
- ])
- dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
- dnl variables prefix and exec_prefix bound to the values they will have
- dnl at the end of the configure script.
- AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
- [
- acl_save_prefix="$prefix"
- prefix="$acl_final_prefix"
- acl_save_exec_prefix="$exec_prefix"
- exec_prefix="$acl_final_exec_prefix"
- $1
- exec_prefix="$acl_save_exec_prefix"
- prefix="$acl_save_prefix"
- ])