don't use S_ISDIR.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@8812 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 2 deletions

diff --git a/io.c b/io.c
index 11bdc85910..784f7c60a1 100644
--- a/io.c
+++ b/io.c
@@ -396,8 +396,7 @@ wsplit_p(OpenFile *fptr)
     if (!(fptr->mode & FMODE_WSPLIT_INITIALIZED)) {
         struct stat buf;
         if (fstat(fileno(f), &buf) == 0 &&
-            !(S_ISREG(buf.st_mode) ||
-              S_ISDIR(buf.st_mode))
+            !S_ISREG(buf.st_mode)
 #if defined(HAVE_FCNTL) && defined(F_GETFL) && defined(O_NONBLOCK)
             && (r = fcntl(fileno(f), F_GETFL)) != -1 &&
             !(r & O_NONBLOCK)