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-rw-r--r--lib/stdio.in.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/stdio.in.h b/lib/stdio.in.h
index 4a95f323a9a..6c338dd6c0b 100644
--- a/lib/stdio.in.h
+++ b/lib/stdio.in.h
@@ -62,10 +62,12 @@
We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
gnulib and libintl do '#define printf __printf__' when they override
the 'printf' function. */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
-# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
-#else
-# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
+#ifndef _GL_ATTRIBUTE_FORMAT
+# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
+# else
+# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
+# endif
#endif
/* _GL_ATTRIBUTE_FORMAT_PRINTF