diff --git a/ChangeLog b/ChangeLog
index dd6d69ca..150e36a4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2002-04-12  Ian Abbott  <abbotti@mev.co.uk>
+
+	* windows/config.h.bor: Account for Borland not defining `__STDC__'
+	when Borland's extensions enabled, and define it anyway.
+
 2002-04-12  Hrvoje Niksic  <hniksic@arsdigita.com>
 
 	* configure.in: Check for <setjmp.h>.  Check for sigsetjmp and
diff --git a/windows/config.h.bor b/windows/config.h.bor
index 18ade4c8..69ac6c73 100644
--- a/windows/config.h.bor
+++ b/windows/config.h.bor
@@ -19,6 +19,12 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
+/* Borland C does not define __STDC__ when the Borland extensions are
+   enabled, but you need those extensions to compile <windows.h>.  */
+#if !defined(__STDC__) && defined(__BORLANDC__)
+# define __STDC__ 1
+#endif
+
 #define HAVE_MEMMOVE
 #define ftruncate chsize
 #define inline __inline