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-rw-r--r--FL/porting.H4
1 files changed, 2 insertions, 2 deletions
diff --git a/FL/porting.H b/FL/porting.H
index 2590cb1d4..c1b586f48 100644
--- a/FL/porting.H
+++ b/FL/porting.H
@@ -21,9 +21,9 @@
// These types and variables give access to internal, platform-specific data through the public API.
// They require to include platform.H (in contrast to types defined in platform_types.h)
-#if !defined(Fl_X_H)
+#if !defined(FL_PLATFORM_H)
# error "Never use <FL/porting.H> directly; include <FL/platform.H> instead."
-#endif // !Fl_X_H
+#endif // !FL_PLATFORM_H
typedef void *Window; // used by fl_find(), fl_xid() and class Fl_X