* ruby.h: use ifdef (or defined) for macro constants that may or

  may not be defined to shut up gcc's -Wundef warnings.
  [ruby-core:08447]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@10648 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/st.c b/st.c
index ced1f9196a..c16c3109a8 100644
--- a/st.c
+++ b/st.c
@@ -537,7 +537,7 @@ strhash(string)
 	h &= ~g;
     }
     return h;
-#elif HASH_PERL
+#elif defined(HASH_PERL)
     register int val = 0;
 
     while ((c = *string++) != '\0') {