# lib-prefix.m4 serial 2 (gettext-0.12)dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.dnl This file is free software, distributed under the terms of the GNUdnl General Public License.  As a special exception to the GNU Generaldnl Public License, this file may be distributed as part of a programdnl that contains a configuration script generated by Autoconf, underdnl the same distribution terms as the rest of that program.dnl From Bruno Haible.dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, anddnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn'tdnl require excessive bracketing.ifdef([AC_HELP_STRING],[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are neededdnl to access previously installed libraries. The basic assumption is thatdnl a user will want packages to use other packages he previously installeddnl with the same --prefix option.dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locatednl 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=\"$libdir\"  ])  AC_LIB_ARG_WITH([lib-prefix],[  --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib  --without-lib-prefix    don't search for libraries in includedir and libdir],[    if test "X$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 anddnl $exec_prefix will expand at the end of the configure script.AC_DEFUN([AC_LIB_PREPARE_PREFIX],[  dnl Unfortunately, prefix and exec_prefix get only finally determined  dnl at the end of configure.  if test "X$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="$acl_save_prefix"])dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with thednl variables prefix and exec_prefix bound to the values they will havednl at the end of the configure script.AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],[  acl_save_prefix="$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"])