$NetBSD: patch-ap,v 1.2 2009/10/11 09:14:52 adam Exp $

--- config.tests/unix/iconv/iconv.cpp.orig	2009-09-29 13:01:31.000000000 +0200
+++ config.tests/unix/iconv/iconv.cpp
@@ -48,7 +48,11 @@ int main(int, char **)
 {
     iconv_t x = iconv_open("", "");
 
+#if defined(__NetBSD__)
+    const char *inp;
+#else
     char *inp;
+#endif
     char *outp;
     size_t inbytes, outbytes;
     iconv(x, &inp, &inbytes, &outp, &outbytes);