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# This file is part of grecs - Gray's Extensible Configuration System -*- autoconf -*-
# Copyright (C) 2007, 2009-2011 Sergey Poznyakoff
#
# Grex 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 3, or (at your option)
# any later version.
#
# Grex 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 Grex. If not, see <http://www.gnu.org/licenses/>.
# _GRECS_MANGLE_OPTION(NAME)
# -------------------------
# Convert NAME to a valid m4 identifier, by replacing invalid characters
# with underscores, and prepend the _GRECS_OPTION_ suffix to it.
AC_DEFUN([_GRECS_MANGLE_OPTION],
[[_GRECS_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
# _GRECS_SET_OPTION(NAME)
# ----------------------
# Set option NAME.
AC_DEFUN([_GRECS_SET_OPTION],
[m4_define(_GRECS_MANGLE_OPTION([$1]), 1)])
# _GRECS_IF_OPTION_SET(NAME,IF-SET,IF-NOT-SET)
# -------------------------------------------
# Check if option NAME is set.
AC_DEFUN([_GRECS_IF_OPTION_SET],
[m4_ifset(_GRECS_MANGLE_OPTION([$1]),[$2],[$3])])
# _GRECS_OPTION_SWITCH(NAME1,IF-SET1,[NAME2,IF-SET2,[...]],[IF-NOT-SET])
# ------------------------------------------------------------------------
# If NAME1 is set, run IF-SET1. Otherwise, if NAME2 is set, run IF-SET2.
# Continue the process for all name-if-set pairs within [...]. If none
# of the options is set, run IF-NOT-SET.
AC_DEFUN([_GRECS_OPTION_SWITCH],
[m4_if([$4],,[_GRECS_IF_OPTION_SET($@)],dnl
[$3],,[_GRECS_IF_OPTION_SET($@)],dnl
[_GRECS_IF_OPTION_SET([$1],[$2],[_GRECS_OPTION_SWITCH(m4_shift(m4_shift($@)))])])])
# _GRECS_SET_OPTIONS(OPTIONS)
# ----------------------------------
# OPTIONS is a space-separated list of Grecs options.
AC_DEFUN([_GRECS_SET_OPTIONS],
[m4_foreach_w([_GRECS_Option], [$1], [_GRECS_SET_OPTION(_GRECS_Option)])])
# GRECS_SETUP([dir],[OPTIONS],[pp-setup-file])
# dir - Directory in the source tree where grecs has been cloned.
# OPTIONS are:
# no-preproc Disable the use of preprocessor.
# std-pp-setup Install standard pp-setup file.
# pp-setup-option Add the --with-pp-setup-file option to the
# configuration file. The option allows user to
# control whether the pp-setup file is installed.
# tests Build tests.
# getopt Add getopt.m4 to the distribution
# git2chg Add git2chg.awk to the distribution
#
# The pp-setup-file argument supplies the pathname of the preprocessor
# setup file in the source tree. It is ignored if std-pp-setup option is
# given.
#
# If neither std-pp-setup option, nor pp-setup-file argument are supplied,
# no preprocessor setup file is installed.
AC_DEFUN([GRECS_SETUP],[
m4_pushdef([grecsdir],m4_if($1,[.],,$1,,[grecs/],$1/))
AC_PROG_YACC
AM_PROG_LEX
AC_HEADER_SYS_WAIT
AC_SUBST([GRECS_SUBDIR],m4_if($1,,grecs,$1))
_GRECS_SET_OPTIONS([$2])
# **********************
# Preprocessor
# **********************
_GRECS_IF_OPTION_SET([no-preproc],
[use_ext_pp=no],
[AC_ARG_WITH([preprocessor],
AC_HELP_STRING([--without-preprocessor],
[do not use external preprocessor]),
[case "${withval}" in
yes) use_ext_pp=yes ;;
no) use_ext_pp=no ;;
*) AC_MSG_ERROR(bad value ${withval} for --with-preprocessor) ;;
esac],[use_ext_pp=yes])])
if test $use_ext_pp != no; then
# Check for default preprocessor
AC_ARG_VAR([DEFAULT_PREPROCESSOR],
[Set default preprocessor name])
if test -z "$DEFAULT_PREPROCESSOR" ; then
DEFAULT_PREPROCESSOR="m4 -s"
fi
save_PATH=$PATH
PREPROC_OPTIONS=`echo $DEFAULT_PREPROCESSOR | sed -n 's/[[^ ]][[^ ]]* //p'`
case "$DEFAULT_PREPROCESSOR" in
/*) PATH=`expr $DEFAULT_PREPROCESSOR : '\(.*\)/.*'`:$PATH
DEFAULT_PREPROCESSOR=`expr $DEFAULT_PREPROCESSOR : '.*/\(.*\)'`;;
esac
AC_PATH_PROG(PPBIN, $DEFAULT_PREPROCESSOR)
DEFAULT_PREPROCESSOR=$PPBIN
if test -n "$DEFAULT_PREPROCESSOR"; then
DEFAULT_PREPROCESSOR="$DEFAULT_PREPROCESSOR $PREPROC_OPTIONS"
_GRECS_IF_OPTION_SET([std-pp-setup],
[PP_SETUP_FILE='pp-setup'],
[m4_if([$3],,[PP_SETUP_FILE=],[PP_SETUP_FILE='$3'])])
AC_SUBST(PP_SETUP_FILE)
if test -n "$PP_SETUP_FILE"; then
_GRECS_IF_OPTION_SET([pp-setup-option],
[AC_ARG_WITH([pp-setup-file],
AC_HELP_STRING([--with-pp-setup-file],
[install the default pp-setup file]),
[case "${withval}" in
yes) ;;
no) PP_SETUP_FILE=;;
*) AC_MSG_ERROR([bad value ${withval} for --with-pp-setup-file]) ;;
esac])],
[case $PPBIN in
*m4) ;; # Install default pp-setup
*) PP_SETUP_FILE=;; # Skip it
esac])
fi
fi
PATH=$save_PATH
DEFAULT_PREPROCESSOR="\\\"$DEFAULT_PREPROCESSOR\\\""
else
DEFAULT_PREPROCESSOR=NULL
fi
_GRECS_IF_OPTION_SET([tests],
[m4_pushdef([TESTDIR],grecsdir[tests])
AC_CONFIG_TESTDIR(TESTDIR)
AC_CONFIG_FILES(TESTDIR/Makefile TESTDIR/atlocal)
m4_popdef([TESTDIR])
AM_MISSING_PROG([AUTOM4TE], [autom4te])
GRECS_TESTDIR=tests
])
_GRECS_IF_OPTION_SET([getopt],[
AC_CHECK_HEADERS([getopt.h])
AC_CHECK_FUNCS([sysconf getdtablesize getopt_long])
GRECS_BUILD_AUX="build-aux/getopt.m4"
])
_GRECS_IF_OPTION_SET([git2chg],[GRECS_BUILD_AUX="$GRECS_BUILD_AUX build-aux/git2chg.awk"])
AC_SUBST([GRECS_SRCDIR],$1)
AC_SUBST([GRECS_BUILD_AUX])
AC_SUBST([GRECS_INCLUDES])
AC_SUBST([GRECS_TESTDIR])
AC_SUBST([GRECS_LDADD])
AC_SUBST([GRECS_DOCDIR])
AC_SUBST([GRECS_CHANGELOG])
AC_SUBST([GRECS_DISTCK_AT])
AC_SUBST([GRECS_INCLUDES],['-I$(top_srcdir)/]grecsdir[src]')
_GRECS_OPTION_SWITCH([install],[
LT_INIT
GRECS_LDADD=['$(top_builddir)/]grecsdir[src/libgrecs.la']
GRECS_DOCDIR='doc'
GRECS_CHANGELOG=
GRECS_DISTCK_AT=distck.at
AC_CONFIG_FILES(grecsdir[src/Makefile]:grecsdir[src/Make-inst.in]
grecsdir[doc/Makefile])
],[shared],[
LT_INIT
GRECS_LDADD=['$(top_builddir)/]grecsdir[src/libgrecs.la']
GRECS_CHANGELOG='#'
AC_CONFIG_FILES(grecsdir[src/Makefile]:grecsdir[src/Make-shared.in])
],[
GRECS_LDADD=['$(top_builddir)/]grecsdir[src/libgrecs.a']
GRECS_CHANGELOG='#'
AC_CONFIG_FILES(grecsdir[src/Makefile]:grecsdir[src/Make-static.in])
])
AC_CONFIG_FILES(grecsdir[Makefile])
m4_popdef([grecsdir])
])
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