* gc.c: use __GNUC__ instead of __GCC__.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43256 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/gc.c b/gc.c
index a696fb2ef0..d2383484ca 100644
--- a/gc.c
+++ b/gc.c
@@ -3473,7 +3473,7 @@ tick(void)
     return x;
 }
 
-#elif defined(__GCC__) && defined(__x86_64__)
+#elif defined(__GNUC__) && defined(__x86_64__)
 typedef unsigned long long tick_t;
 
 static __inline__ tick_t