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-rw-r--r--misc/sys/cdefs.h12
1 files changed, 4 insertions, 8 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 6d4bc62e14..6a8b870e13 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -33,7 +33,7 @@
/* GCC can always grok prototypes. For C++ programs we add throw()
to help it optimize the function calls. But this works only with
gcc 2.8.x and egcs. */
-# if defined __cplusplus && (__GNUC__ >= 3 || __GNUC_MINOR__ >= 8)
+# if defined __cplusplus && __GNUC_PREREQ (2,8)
# define __THROW throw ()
# else
# define __THROW
@@ -42,6 +42,7 @@
/* This macro will be used for functions which might take C++ callback
functions. */
# define __PMT(args) args
+
# define __DOTS , ...
#else /* Not GCC. */
@@ -131,7 +132,6 @@
/*
#elif __SOME_OTHER_COMPILER__
-# define __attribute__(xyz)
# define __REDIRECT(name, proto, alias) name proto; \
_Pragma("let " #name " = " #alias)
*/
@@ -150,17 +150,13 @@
run in pedantic mode if the uses are carefully marked using the
`__extension__' keyword. But this is not generally available before
version 2.8. */
-#if !defined __GNUC__ || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
-
+#if !__GNUC_PREREQ (2,8)
# define __extension__ /* Ignore */
-
#endif
/* __restrict is known in EGCS 1.2 and above. */
-#if !defined __GNUC__ || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 92)
-
+#if !__GNUC_PREREQ (2,92)
# define __restrict /* Ignore */
-
#endif
#endif /* sys/cdefs.h */