configure.in

dnl $MawkId: configure.in,v 1.36 2010/07/24 11:43:55 tom Exp $
dnl configure.in for mawk
dnl ###########################################################################
dnl configure.in
dnl copyright 2008-2009,2010, Thomas E. Dickey
dnl copyright 1991-1994,1995, Michael D. Brennan
dnl
dnl This is a source file for mawk, an implementation of
dnl the AWK programming language.
dnl
dnl Mawk is distributed without warranty under the terms of
dnl the GNU General Public License, version 2, 1991.
dnl ###########################################################################
dnl
dnl @Log: configure.in,v @
dnl Revision 1.13  1995/10/16  12:25:00  mike
dnl configure cleanup
dnl
dnl Revision 1.12  1995/04/20  20:26:51  mike
dnl beta improvements from Carl Mascott
dnl
dnl Revision 1.11  1995/01/09  01:22:30  mike
dnl check sig handler ret type to make fpe_check.c more robust
dnl
dnl Revision 1.10  1994/12/18  20:46:24  mike
dnl fpe_check -> ./fpe_check
dnl
dnl Revision 1.9  1994/12/14  14:42:55  mike
dnl more explicit that "   " MATHLIB means none
dnl
dnl Revision 1.8  1994/12/11  21:26:25  mike
dnl tweak egrep for [fs]printf prototypes
dnl
dnl Revision 1.7  1994/10/16  18:38:23  mike
dnl use sed on defines.out
dnl
dnl Revision 1.6  1994/10/11  02:49:06  mike
dnl systemVr4 siginfo
dnl
dnl Revision 1.5  1994/10/11  00:39:25  mike
dnl fpe check stuff
dnl
dnl
dnl
AC_INIT(mawk.h)

AC_CONFIG_HEADER(config.h:config_h.in)
CF_CHECK_CACHE

AC_ARG_PROGRAM

AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_CPP
AC_PROG_INSTALL

CF_MAWK_MATHLIB

CF_DISABLE_ECHO
CF_ENABLE_WARNINGS

AC_MSG_CHECKING(if you want to use mawk's own regular-expressions engine)
AC_ARG_WITH([builtin-regex],
[  --with-builtin-regex    use mawk's own regular-expressions engine],
[
	with_builtin_regex=$withval
])
if test "x${with_builtin_regex}" != xno; then
	with_builtin_regex=yes
    CFLAGS="$CFLAGS -DLOCAL_REGEXP"
fi
AC_MSG_RESULT($with_builtin_regex)

if test "x${with_builtin_regex}" = xno; then
    CF_REGEX
fi

AC_PROG_YACC
CF_PROG_LINT
CF_MAKE_TAGS
CF_ANSI_CC_REQD
CF_XOPEN_SOURCE
CF_LARGEFILE

CF_DISABLE_LEAKS
CF_ENABLE_TRACE

CF_MAWK_FIND_SIZE_T
CF_LOCALE
CF_CHECK_ENVIRON(environ)

AC_CHECK_FUNCS(fork pipe tdestroy tsearch wait)
test "$ac_cv_func_fork" = yes && \
test "$ac_cv_func_pipe" = yes && \
test "$ac_cv_func_wait" = yes && \
AC_DEFINE(HAVE_REAL_PIPES)

AC_CHECK_HEADERS(unistd.h sys/wait.h)

CF_MAWK_CHECK_HEADERS(fcntl.h errno.h math.h time.h stdarg.h stdlib.h string.h)
CF_MAWK_CHECK_FUNCS(memcpy strchr strerror vfprintf strtod fmod matherr)
CF_MAWK_FIND_MAX_INT
CF_MAWK_RUN_FPE_TESTS
AC_OUTPUT(Makefile)