Use __-protected versions of `format' and `printf' only with gcc-2.7 and later.

diff --git a/lib/error.h b/lib/error.h
index 728c38a..55d862a 100644 (file)
--- a/lib/error.h
+++ b/lib/error.h
@@ -19,9 +19,16 @@
 #define _error_h_
 
 #ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later.  */
 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
 #  define __attribute__(Spec) /* empty */
 # endif
+/* The __-protected variants of `format' and `printf' attributes
+   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+#  define __format__ format
+#  define __printf__ printf
+# endif
 #endif
 
 #if __STDC__