1 files changed, 4 insertions, 0 deletions

diff --git a/uisimulator/win32/file.h b/uisimulator/win32/file.h
index 1ba4e222cb..e5a94b8db9 100644
--- a/uisimulator/win32/file.h
+++ b/uisimulator/win32/file.h
@@ -24,6 +24,10 @@
 #include <fcntl.h>
 #endif
 
+#ifndef _commit
+extern int _commit( int handle );
+#endif
+
 int win32_rename(char *oldpath, char *newpath);
 int win32_filesize(int fd);