dnl Check for M$-Compiler      (C) 2000-2001 Fritz Elfert <felfert@to.com>
dnl
dnl This program 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 2 of the License, or
dnl (at your option) any later version.
dnl 
dnl This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl 
dnl As a special exception to the GNU General Public License, if you 
dnl distribute this file as part of a program that contains a configuration 
dnl script generated by Autoconf, you may include it under the same 
dnl distribution terms that you use for the rest of that program.

AC_DEFUN([NP_FIND_DOSENV],[
	save_IFS="$IFS"
	$3=no
	IFS=","
	ENVVAR=`echo $$2 | tr ';' ','`
	for i in $ENVVAR ; do
		f=`cygpath -u "$i"`
		if test -r "$f/$1" ; then
			$3="$f"
			break
		fi
	done
	IFS="$save_IFS"
])

AC_DEFUN([NP_PROG_MSC],[
	AC_ARG_WITH(wininc,
		[  --with-wininc=DIR       define windows include directory],
		[win32inc="$withval"],[win32inc=no]
	)
	AC_ARG_WITH(winlib,
		[  --with-winlib=DIR       define windows lib directory],
		[win32lib="$withval"],[win32lib=no]
	)
	AC_CACHE_CHECK(for MSC environment, np_cv_prog_msc, [
		np_cv_prog_msc=no
		cat > conftest.c <<EOF
#ifndef _MSC_VER
#error NOMSC
#endif
int main() {}
EOF
		RET=`cl -nologo -c conftest.c 2>&1`
		case "$RET" in
			conftest.c?)
				np_cv_prog_msc=yes
				;;
			*)
				;;
		esac
	])
	if test "x$np_cv_prog_msc" = "xyes" ; then
		if test "$win32inc" = "no" ; then
			AC_MSG_CHECKING(for Win32 include dir)
			NP_FIND_DOSENV(ras.h,INCLUDE,win32inc)
			AC_MSG_RESULT("$win32inc")
		fi
		if test "$win32inc" = "no" ; then
			AC_MSG_ERROR([Unable to get Win32 include dir from environment.])
			AC_MSG_ERROR([use --with-wininc=DIR to set it manually])
		fi
		if test "$win32lib" = "no" ; then
			AC_MSG_CHECKING(for Win32 lib dir)
			NP_FIND_DOSENV(wsock32.lib,LIB,win32lib)
			AC_MSG_RESULT("$win32lib")
		fi
		if test "$win32lib" = "no" ; then
			AC_MSG_ERROR([Unable to get Win32 lib dir from environment.])
			AC_MSG_ERROR([use --with-winlib=DIR to set it manually])
		fi
		CC="cl -nologo -GX -D__WIN32__ -D_MT -D_WIN32_WINNT=0x0400 -I$win32inc"
		CXX="cl -nologo -GX -D__WIN32__ -D_MT -D_WIN32_WINNT=0x0400 -I$win32inc"
		LD="link /libpath:$win32lib"
		AS=masm
	fi
	AM_CONDITIONAL(MSWIN32, test $np_cv_prog_msc = yes)
])