diff -r ba16f91d585c -r a3325f438881 configure.ac
--- a/configure.ac	Thu Aug 25 20:22:44 2011 +0100
+++ b/configure.ac	Thu Aug 25 20:41:08 2011 +0100
@@ -45,7 +45,16 @@
 # Checks for header files.
 ##################################################
 AC_HEADER_STDC
-AC_CHECK_HEADERS_ONCE([softpub.h mscat.h])
+case $host_os in
+    mingw*)
+	AC_CHECK_HEADERS([softpub.h],[],[],
+	  [#include <windows.h>
+	  ])
+	AC_CHECK_HEADERS([mscat.h],[],[],
+	  [#include <windows.h>
+	  ])
+	;;
+esac
 
 ##################################################
 # Checks for typedefs, structures, and compiler characteristics.