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-rw-r--r--gnu/include/values.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/gnu/include/values.h b/gnu/include/values.h
index 4a2363f..91f448d 100644
--- a/gnu/include/values.h
+++ b/gnu/include/values.h
@@ -1,4 +1,6 @@
-/* This file is SYSV-ism (for compatibility only) */
+#if __GNUC__
+#warning "this file includes <values.h> which is obsoleted, use <limits.h> or <float.h> instead"
+#endif
/*
Copyright (C) 1988 Free Software Foundation
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