diff --git a/windows/ChangeLog b/windows/ChangeLog
index f047fc6d..1e6bcadd 100644
--- a/windows/ChangeLog
+++ b/windows/ChangeLog
@@ -1,3 +1,8 @@
+2005-07-07  Gisle Vanem  <giva@bgnett.no>
+
+	* config-compiler.h: Define HAVE__BOOL, HAVE_INTTYPES_H, and
+	HAVE_STRTOLL for MinGW.
+
 2005-07-07  Hrvoje Niksic  <hniksic@xemacs.org>
 
 	* config.h.mingw: Removed.
diff --git a/windows/config-compiler.h b/windows/config-compiler.h
index 5cfffcf7..fbc199f9 100644
--- a/windows/config-compiler.h
+++ b/windows/config-compiler.h
@@ -84,6 +84,11 @@ so, delete this exception statement from your version.  */
 # undef gai_strerror
 # define gai_strerror windows_strerror
 #endif
+
+/* MinGW and GCC support some POSIX and C99 features.  */
+#define HAVE__BOOL 1
+#define HAVE_INTTYPES_H 1
+#define HAVE_STRTOLL 1
 
 /* -------------------- */
 /* MS Visual C section. */