Fix linux build.

Modified: trunk/reactos/tools/pefixup.c

--- trunk/reactos/tools/pefixup.c	2005-08-02 18:13:21 UTC (rev 16974)
+++ trunk/reactos/tools/pefixup.c	2005-08-02 18:21:48 UTC (rev 16975)
@@ -25,6 +25,10 @@

 #include <string.h>
 #include <fcntl.h>
 

+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+

 /* The following definitions are ripped from MinGW W32API headers. We don't
    use these headers directly in order to allow compilation on Linux hosts. */