aboutsummaryrefslogtreecommitdiff
path: root/gcc/system.h
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/system.h')
-rw-r--r--gcc/system.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/system.h b/gcc/system.h
index e1c75ab..0107b26 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -249,4 +249,22 @@ void abort ();
#endif /* USE_SYSTEM_ABORT */
#endif /* !abort */
+
+/* Define a STRINGIFY macro that's right for ANSI or traditional C.
+ HAVE_CPP_STRINGIFY only refers to the stage1 compiler. Assume that
+ (non-traditional) gcc used in stage2 or later has this feature.
+
+ Note: if the argument passed to STRINGIFY is itself a macro, eg
+ #define foo bar, STRINGIFY(foo) will produce "foo", not "bar".
+ Although the __STDC__ case could be made to expand this via a layer
+ of indirection, the traditional C case can not do so. Therefore
+ this behavior is not supported. */
+#ifndef STRINGIFY
+# if defined(HAVE_CPP_STRINGIFY) || (defined(__GNUC__) && defined(__STDC__))
+# define STRINGIFY(STRING) #STRING
+# else
+# define STRINGIFY(STRING) "STRING"
+# endif
+#endif /* ! STRINGIFY */
+
#endif /* __GCC_SYSTEM_H__ */