It turns out that VC1.5 does not necessarily define _WINDOWS.

diff --git a/PC/config.h b/PC/config.h
index d360ae47b5f2bec388aa06cc479be5a44dff0184..0247cef37e0ad631267ef7064d7c2b31dd7cfcdd 100644 (file)
--- a/PC/config.h
+++ b/PC/config.h
@@ -93,10 +93,8 @@ typedef int pid_t;
 #if defined(_MSC_VER) && _MSC_VER <= 850
 /* Start of defines for 16-bit Windows using VC++ 1.5 */
 #define COMPILER "[MSC 16-bit]"
-#ifdef _WINDOWS
 #define MS_WIN16
 #define MS_WINDOWS
-#endif
 #define PYTHONPATH ".;.\\lib;.\\lib\\win;.\\lib\\dos_8x3"
 #define IMPORT_8x3_NAMES
 typedef int pid_t;