$NetBSD: patch-ap,v 1.3 2019/10/28 19:37:41 maya Exp $

Support NetBSD iconv variant (pre-9.99.17 and newer)

--- config.tests/unix/iconv/iconv.cpp.orig	2015-05-07 14:14:42.000000000 +0000
+++ config.tests/unix/iconv/iconv.cpp
 #if defined(__sgi)
 #error "iconv not supported on IRIX"
 #else
+#if defined(__NetBSD__)
+#include <sys/param.h>
+#endif
 #include <iconv.h>
 
 int main(int, char **)
 {
     iconv_t x = iconv_open("", "");
 
+#if defined(__NetBSD__) && __NetBSD_Version__ < 999001700
+    const char *inp;
+#else
     char *inp;
+#endif
     char *outp;
     size_t inbytes, outbytes;
     iconv(x, &inp, &inbytes, &outp, &outbytes);