* win32/win32.c (ioctl): should set errno.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@9390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/win32/win32.c b/win32/win32.c
index cc128613d8..3788157044 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -1797,6 +1797,7 @@ int
   ioctl(int i, unsigned int u, long data)
 #endif
 {
+    errno = EINVAL;
     return -1;
 }