OS/2 EMX port changes (Include part of patch #450267):

  Include/
    osdefs.h  // EMX promotes Un*x path separators
    pyport.h

Include/osdefs.h

@@ -17,9 +17,15 @@ extern "C" {
 /* Mod by chrish: QNX has WATCOM, but isn't DOS */
 #if !defined(__QNX__)
 #if defined(MS_WINDOWS) || defined(__BORLANDC__) || defined(__WATCOMC__) || defined(__DJGPP__) || defined(PYOS_OS2)
+#if defined(PYOS_OS2) && defined(PYCC_GCC)
+#define MAXPATHLEN 260
+#define SEP '/'
+#define ALTSEP '\\'
+#else
 #define SEP '\\'
 #define ALTSEP '/'
 #define MAXPATHLEN 256
+#endif
 #define DELIM ';'
 #endif
 #endif

Include/pyport.h

@@ -157,6 +157,9 @@ typedef LONG_LONG		Py_intptr_t;
 #endif
 
 #ifndef DONT_HAVE_SYS_STAT_H
+#if defined(PYOS_OS2) && defined(PYCC_GCC)
+#include <sys/types.h>
+#endif
 #include <sys/stat.h>
 #elif defined(HAVE_STAT_H)
 #include <stat.h>