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# ===========================================================================
# http://autoconf-archive.cryp.to/ax_subst_with.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_SUBST_WITH([varname])
#
# DESCRIPTION
#
# a very simple macro but also very helpful - the varname is usually the
# one from an AC_ARG_ENABLE or AC_ARG_WITH option. it is transliterated
# into uppercase and a prefix WITH_ and WITHOUT_ that are both _SUBSTed.
#
# Only one of these is set to "#" while the other is empty. In other words
# a call like AC_WITHNONE(enable-call) will create two SUBST-symbols as
# WITH_ENABLE_CALL and WITHOUT_ENABLE_CALL. When the varname had been set
# to something not "no" or "0" or ":" or "false" then it results in
#
# WITH_ENABLE_CALL="" ; WITHOUT_ENABLE_CALL="#"
#
# which you can use in your Makefile quite easily as if using an
# AM_CONDITIONAL but which can be also parsed by normal make
#
# USE = @WITH_ENABLE_CALL@ -Denabled USE = @WITHOUT_ENABLE_CALL@
# -Dnot_enabled
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
dnl AX_SUBST_WITH_IF(flag,cond) - not unlike AM_CONDITIONAL
AC_DEFUN([AX_SUBST_WITH_IF],[dnl
pushdef([VAR_WITH], patsubst(translit([with_$1], [a-z], [A-Z]), -, _))dnl
pushdef([VAR_WITHOUT], patsubst(translit([without_$1], [a-z], [A-Z]), -, _))dnl
AC_SUBST(VAR_WITH)
AC_SUBST(VAR_WITHOUT)
if $2; then
VAR_WITH=""
VAR_WITHOUT="#"
else
VAR_WITH="#"
VAR_WITHOUT=""
fi
popdef([VAR_WITHOUT])dnl
popdef([VAR_WITH])dnl
])
dnl AX_SUBST_WITH(varname [,default]) - not unlike AM_CONDITIONAL
AC_DEFUN([AX_SUBST_WITH],[dnl
pushdef([VAR], patsubst(translit([with_$1], [A-Z], [a-z]), -, _))dnl
pushdef([VAR_WITH], patsubst(translit([with_$1], [a-z], [A-Z]), -, _))dnl
pushdef([VAR_WITHOUT], patsubst(translit([without_$1], [a-z], [A-Z]), -, _))dnl
pushdef([VAR_WITHVAL], patsubst(translit([withval_$1], [a-z], [A-Z]), -, _))dnl
AC_SUBST(VAR_WITH)
AC_SUBST(VAR_WITHOUT)
VAR_WITHVAL=`echo "$VAR"`
test ".$VAR_WITHVAL" = "." && VAR_WITHVAL="m4_ifval([$2],[$2],no)"
test ".$VAR_WITHVAL" = ".:" && VAR_WITHVAL="no"
test ".$VAR_WITHVAL" = ".0" && VAR_WITHVAL="no"
test ".$VAR_WITHVAL" = ".no" && VAR_WITHVAL="no"
test ".$VAR_WITHVAL" = ".false" && VAR_WITHVAL="no"
if test ".$VAR_WITHVAL" != ".no" ; then
VAR_WITH=""
VAR_WITHOUT="#"
else
VAR_WITH="#"
VAR_WITHOUT=""
fi
popdef([VAR_WITHVAL])dnl
popdef([VAR_WITHOUT])dnl
popdef([VAR_WITH])dnl
popdef([VAR])dnl
])
dnl AX_SUBST_WITH_DEFINE(varname [,default]) - not unlike AM_CONDITIONAL
AC_DEFUN([AX_SUBST_WITH_DEFINE],[dnl
pushdef([VAR], patsubst(translit([with_$1], [A-Z], [a-z]), -, _))dnl
pushdef([VAR_WITH], patsubst(translit([with_$1], [a-z], [A-Z]), -, _))dnl
pushdef([VAR_WITHOUT], patsubst(translit([without_$1], [a-z], [A-Z]), -, _))dnl
pushdef([VAR_WITHVAL], patsubst(translit([withval_$1], [a-z], [A-Z]), -, _))dnl
AC_SUBST(VAR_WITH)
AC_SUBST(VAR_WITHOUT)
VAR_WITHVAL=`echo "$VAR"`
test ".$VAR_WITHVAL" = "." && VAR_WITHVAL="m4_ifval([$2],[$2],no)"
test ".$VAR_WITHVAL" = ".:" && VAR_WITHVAL="no"
test ".$VAR_WITHVAL" = ".0" && VAR_WITHVAL="no"
test ".$VAR_WITHVAL" = ".no" && VAR_WITHVAL="no"
test ".$VAR_WITHVAL" = ".false" && VAR_WITHVAL="no"
if test ".$VAR_WITHVAL" != ".no" ; then
VAR_WITH=""
VAR_WITHOUT="#"
case "$VAR_WITHVAL" in
[[0123456789]]*) ;;
[yes)] VAR_WITHVAL="1" ;;
[*)] VAR_WITHVAL=`echo "\"$VAR_WITHVAL\"" | sed -e 's,"",",g'` ;;
esac
else
VAR_WITH="#"
VAR_WITHOUT=""
fi
if test ".$VAR_WITHVAL" != ".no" ; then
AC_DEFINE_UNQUOTED(VAR_WITH, $VAR_WITHVAL,
[whether $1 feature is enabled])
fi dnl
popdef([VAR_WITHVAL])dnl
popdef([VAR_WITHOUT])dnl
popdef([VAR_WITH])dnl
popdef([VAR])dnl
])
dnl backward compatibility helpers
AC_DEFUN([AX_SUBST_WITH_ARG],[dnl
pushdef([VAR], patsubst(translit([with_$1], [A-Z], [a-z]), -, _))dnl
m4_ifvaln([$2],[test ".$VAR" = "." && VAR="$2"])dnl
AX_SUBST_WITH([$1],[$2])
popdef([VAR])dnl
])
AC_DEFUN([AX_SUBST_WITH_DEFINE_ARG],[dnl
pushdef([VAR], patsubst(translit([with_$1], [A-Z], [a-z]), -, _))dnl
m4_ifvaln([$2],[test ".$VAR" = "." && VAR="$2"])dnl
AX_SUBST_WITH_DEFINE([$1],[$2])
popdef([VAR])dnl
])
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