)
AC_SUBST(GhcLibsWithHOpenGL)
+dnl ** .NET interop support?
+dnl --------------------------------------------------------------
+AC_ARG_ENABLE(dotnet,
+[ --enable-dotnet
+ Build .NET interop layer.
+],
+[DotnetSupport=YES; AC_DEFINE(WANT_DOTNET_SUPPORT)],
+[DotnetSupport=NO]
+)
+AC_SUBST(DotnetSupport)
+
dnl --------------------------------------------------------------
dnl End of configure script option section
dnl --------------------------------------------------------------
FPTOOLS_CHECK_LIBM()
AC_SUBST(LIBM)
-case $HostOS_CPP in
-cygwin32) ;;
-mingw32) ;;
-*) AC_PATH_XTRA() ;;
-esac
+dnl ** check for X Window System
+AC_PATH_XTRA()
dnl ** check for OpenGL/GLUT/GLX include paths and libraries
if test $GhcLibsWithHOpenGL = YES ; then