+case "${host}" in
+ *-mingw32*)
+ LIBS="$LIBS -lws2_32"
+ CPPFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $CPPFLAGS"
+ AC_DEFINE_UNQUOTED(MINGW,1,[This is a MinGW system])
+ AM_CONDITIONAL(MINGW, true)
+ ;;
+ *)
+ AM_CONDITIONAL(MINGW, false)
+esac
+
+MAYBE_GUI=
+AC_ARG_WITH([gtk], AS_HELP_STRING([--with-gtk], [enable GTK+ gui]))
+if test "x$with_gtk" = "xyes"; then
+ PKG_CHECK_MODULES([GTK], [gtk+-3.0])
+ PKG_CHECK_MODULES([GLIB], [glib-2.0 > 2.32.0])
+ MAYBE_GUI=gui
+ AC_CONFIG_FILES([gui/Makefile])
+fi
+AC_SUBST([MAYBE_GUI])
+