X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/22c3fb2ba3c6236525e147e5b10d0bc62bc5e2e5..db4444f0cebf4e63e666a7d6d18141c127535efd:/demos/configure.in

diff --git a/demos/configure.in b/demos/configure.in
index 983747c7ca..25cbcd2568 100644
--- a/demos/configure.in
+++ b/demos/configure.in
@@ -3,6 +3,16 @@ AC_REVISION($Id$)dnl
 
 AC_INIT(Makefile.in)
 
+dnl we need the values the main configure determined for us, so refuse
+dnl to run if we don't have them
+dnl
+dnl note that the only one we use here if wx_cv_if_gnu_make but we can't test
+dnl for this because it may perfectly well be empty (if we're using GNU make),
+dnl so use something else
+if test "x$wx_cv_path_ifs" = "x"; then
+    AC_MSG_ERROR([Please run configure from the top level directory.])
+fi
+
 IF_GNU_MAKE=$wx_cv_if_gnu_make
 AC_SUBST(IF_GNU_MAKE)