dnl

dnl configure.ac --- autoconf input file for gawk

dnl

dnl Copyright (C) 2012-2018 the Free Software Foundation, Inc.

dnl

dnl This file is part of GAWK, the GNU implementation of the

dnl AWK Programming Language.

dnl

dnl GAWK is free software; you can redistribute it and/or modify

dnl it under the terms of the GNU General Public License as published by

dnl the Free Software Foundation; either version 3 of the License, or

dnl (at your option) any later version.

dnl

dnl GAWK is distributed in the hope that it will be useful,

dnl but WITHOUT ANY WARRANTY; without even the implied warranty of

dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

dnl GNU General Public License for more details.

dnl

dnl You should have received a copy of the GNU General Public License

dnl along with this program; if not, write to the Free Software

dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

dnl

dnl Process this file with autoconf to produce a configure script.

AC_INIT([GNU Awk Bundled Extensions],[4.2.1],[bug-gawk@gnu.org],[gawk-extensions])

AC_PREREQ([2.69])

AC_CONFIG_MACRO_DIR([m4])

AC_CONFIG_AUX_DIR([build-aux])

AM_INIT_AUTOMAKE([1.15 -Wall -Werror])

AC_USE_SYSTEM_EXTENSIONS

AC_ZOS_USS

INSTALL="$ac_aux_dir/install-sh -c"

export INSTALL

SKIP_MPFR=no

AC_ARG_ENABLE([mpfr],

	[AS_HELP_STRING([--disable-mpfr],[do not check for MPFR])],

	if test "$enableval" = no

	then

		SKIP_MPFR=yes

	fi

)

dnl Set the programming language for checks. Fortunately,

dnl this only needs to be set once, since everything is in C.

AC_LANG([C])

dnl initialize GNU gettext

dnl this seems to help with finding MPFR on some systems, too.

AM_GNU_GETTEXT([external])

AM_GNU_GETTEXT_VERSION([0.19.7])

AM_LANGINFO_CODESET

gt_LC_MESSAGES

dnl checks for structure members

AC_CHECK_MEMBERS([struct stat.st_blksize])

AM_PROG_AR

AC_SYS_LARGEFILE

AC_DISABLE_STATIC

LT_INIT

dnl AC_PROG_INSTALL

dnl use the same definition as the main configure script.

dnl EXTENSIONDIR is exported if it was set there.

dnl N.B. We must use ${libdir}/gawk instead of $pkglibdir because $pkglibdir

dnl is set to ${libdir}/gawk-extensions, which is not what we want.

AC_SUBST([pkgextensiondir], ['${libdir}/gawk'${EXTENSIONDIR}])

if test "$GCC" = yes

then

	CFLAGS="$CFLAGS -Wall"	# Don't add -Wextra, hurts older gcc

fi

AC_MSG_CHECKING([for special development options])

if test -f $srcdir/../.developing

then

	if test "$GCC" = yes

	then

		CFLAGS="$CFLAGS -Wall -fno-builtin -g3 -gdwarf-2"

	fi

	AC_MSG_RESULT([yes])

else

	AC_MSG_RESULT([no])

fi

AC_CHECK_HEADERS(fnmatch.h limits.h sys/mkdev.h sys/param.h sys/select.h \

		sys/statvfs.h sys/sysmacros.h sys/time.h)

AC_HEADER_DIRENT

dnl 12/2017: AC_HEADER_MAJOR no longer works on recent Fedora / GLIBC.

dnl Instead we just check for the headers in the call above.

dnl AC_HEADER_MAJOR

AC_HEADER_TIME

dnl check for mpfr support

case `uname -m` in

*'Power Macintosh'*)

	: ;;

*)

	case $SKIP_MPFR in

	no)	GNUPG_CHECK_MPFR

		;;

	esac

	;;

esac

AC_SEARCH_LIBS(fmod, m)

AC_CHECK_FUNCS(fdopendir fmod fnmatch getdtablesize \

		gettimeofday nanosleep select statvfs \

		GetSystemTimeAsFileTime)

GAWK_FUNC_DIRFD

GAWK_PREREQ_DIRFD

dnl checks for compiler characteristics

AC_C_INLINE

AC_CONFIG_HEADERS([config.h:configh.in])

AH_BOTTOM([#include "ext_custom.h"])

AC_CONFIG_FILES(Makefile)

AC_OUTPUT