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New macro WARN_UNUSED_RESULT.
[pspp-builds.git]
/
src
/
libpspp
/
compiler.h
diff --git
a/src/libpspp/compiler.h
b/src/libpspp/compiler.h
index 44f22b39682a5656488126d86eef2ee5dad081b6..8c2c3abd2ea6a808761eed046dce287f277ffaf9 100644
(file)
--- a/
src/libpspp/compiler.h
+++ b/
src/libpspp/compiler.h
@@
-44,4
+44,11
@@
#define MALLOC_LIKE
#endif
+/* This attribute was added in GCC 4.0. */
+#if __GNUC__ >= 4
+#define WARN_UNUSED_RESULT ATTRIBUTE ((warn_unused_result))
+#else
+#define WARN_UNUSED_RESULT
+#endif
+
#endif /* compiler.h */