Add zznop, a small test program to help debug the Win32 port.

Also add check-build from libcaca to test that msvc/config.h is
up to date.

test/Makefile.am

@@ -1,7 +1,8 @@
 
 EXTRA_DIST = $(TESTS) functions.inc file-00 file-ff file-random file-text
 
-noinst_PROGRAMS = zzcat zzero bug-overflow bug-memory bug-div0
+noinst_PROGRAMS = zzcat zzero zznop bug-overflow bug-memory bug-div0
 
-TESTS = check-md5 check-overflow check-memory check-div0 check-rng check-utils
+TESTS = check-build check-md5 check-overflow check-memory check-div0 \
+        check-rng check-utils
 

test/check-build

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+failure=0
+
+config_h_in=$(dirname "$0")/../config.h.in
+win32_config_h=$(dirname "$0")/../win32/config.h
+
+for key in $(sed -ne 's/.*#undef *\([A-Za-z0-9_]*\).*/\1/p' "$config_h_in");
+do
+  if ! grep '[ef] \<'"$key"'\>' "$win32_config_h" >/dev/null 2>&1; then
+    echo "error: $key missing from win32/config.h"
+    failure=1
+  fi
+done
+
+if test "$failure" != "0"; then
+  exit 1
+else
+  echo "0 errors in Win32 config.h"
+fi
+
+exit 0
+

test/zznop.c

@@ -0,0 +1,37 @@
+/*
+ *  zznop - almost empty program that does almost nothing
+ *  Copyright (c) 2009 Sam Hocevar <sam@hocevar.net>
+ *                All Rights Reserved
+ *
+ *  $Id$
+ *
+ *  This program is free software. It comes without any warranty, to
+ *  the extent permitted by applicable law. You can redistribute it
+ *  and/or modify it under the terms of the Do What The Fuck You Want
+ *  To Public License, Version 2, as published by Sam Hocevar. See
+ *  http://sam.zoy.org/wtfpl/COPYING for more details.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+
+#if defined HAVE_WINDOWS_H
+#   include <windows.h>
+#endif
+
+int main(void)
+{
+#if defined HAVE_WINDOWS_H
+    AllocConsole();
+
+    fprintf(stderr, "About to call LoadLibraryA()\n");
+    LoadLibraryA("whatever");
+    fprintf(stderr, "Finished calling LoadLibraryA()\n");
+
+    getchar();
+#endif
+
+    return EXIT_SUCCESS;
+}
+