dnl Process this file with autoconf to produce a configure script.
dnl $Id$
AC_INIT(webserver.c)

AC_CANONICAL_HOST

AC_ARG_WITH(with_libical, [  --with-libical          use libical calendaring library])
AC_ARG_WITH(with_newt, [  --with-newt          use newt window library])

dnl Set some system-specific variables which are OK to set before compiler
dnl checks:
PTHREAD_DEFS=-D_REENTRANT
case "$host" in
	dnl Tru64 Unix requires we use -pthread instead of linking the threads
	dnl libraries directly, and we can't build threaded programs with gcc
	dnl due to header file problems.
	alpha*-dec-osf*)
		test -z "$CC" && CC=cc
		LIBS=-pthread
	;;
	dnl FreeBSD is similar:
	*-*-freebsd*)
		LIBS=-pthread
		PTHREAD_DEFS=-D_THREAD_SAFE
	;;
	*-*-solaris*)
		PTHREAD_DEFS='-D_REENTRANT -D_PTHREADS'
	;;
esac
AC_SUBST(PTHREAD_DEFS)

dnl Checks for programs.
AC_PROG_CC

dnl Configure compiler flags for GCC
if test "$GCC" = yes; then
	case "$host" in
		*-*-solaris*)
			CFLAGS="$CFLAGS -Wall -Wno-char-subscripts"
		;;
		*)
			CFLAGS="$CFLAGS -Wall"
		;;
	esac
fi

missing_dir=`cd $ac_aux_dir && pwd`
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)

dnl Checks for libraries.
if test "$LIBS" != -pthread; then
	AC_CHECK_LIB(pthread, pthread_create)
	AC_CHECK_LIB(pthreads, pthread_create)
fi
AC_SEARCH_LIBS(gethostbyname, nsl)
AC_SEARCH_LIBS(connect, socket)

dnl Checks for header files.
AC_HEADER_STDC
dnl AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(fcntl.h limits.h sys/time.h unistd.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
dnl AC_HEADER_TIME

dnl Checks for library functions.
AC_TYPE_SIGNAL
dnl AC_FUNC_VPRINTF
dnl AC_CHECK_FUNCS(strerror)
AC_REPLACE_FUNCS(snprintf)

dnl Checks for the libical calendaring library.
if test "x$with_libical" != xno ; then
        AC_CHECK_HEADERS(ical.h,
                [AC_CHECK_LIB(ical, icalcomponent_new,
                        [ok_libical=yes],,
        )])
fi

if test "x$ok_libical" = xyes ; then

	AC_TRY_RUN(
		[
#include <ical.h>
main() {
	float v;
	int i;
	sscanf(ICAL_VERSION, "%f", &v);
	printf("libical version: %0.2f\n", v);
	v = v * 100.0;
	i = (int) v;
	if (i >= 24) {
		printf("This version is ok.\n");
		printf("WebCit will be built with calendar support.\n");
		return(0);
	}
	printf("libical 0.24 or newer is required.\n");
	printf("WebCit will be built without calendar support.\n");
	return(1);
}
		], 
		[
			LIBS="-lical $LIBS"
			AC_DEFINE(HAVE_LIBICAL)
		]
	)
fi

dnl Checks for the newt window library.
if test "x$with_newt" != xno ; then
	AC_CHECK_HEADERS(newt.h,
		[AC_CHECK_LIB(newt, newtInit,
			[ok_newt=yes],,
	)])
fi

if test "x$ok_newt" = xyes ; then
	SETUP_LIBS="-lnewt $SETUP_LIBS"
	AC_DEFINE(HAVE_NEWT)
fi



AC_SUBST(SETUP_LIBS)

AC_OUTPUT(Makefile)