From a26a3676295689d15cb952cbec822021092e2901 Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Wed, 27 Nov 2013 18:16:16 -0800
Subject: [PATCH] configure.ac: Check for miniupnpc headers, not just
 -lminiupnpc

This protects against broken systems which have libminiupnpc.a or
libminiupnpc.so installed but don't have the miniupnpc headers.
---
 configure.ac | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index f6d870f33..43a622fea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -342,7 +342,11 @@ BITCOIN_FIND_BDB48
 
 dnl Check for libminiupnpc (optional)
 if test x$use_upnp != xno; then
-  AC_CHECK_LIB([miniupnpc], [main],, [have_miniupnpc=no])
+  AC_CHECK_HEADERS(
+    [miniupnpc/miniwget.h miniupnpc/miniupnpc.h miniupnpc/upnpcommands.h miniupnpc/upnperrors.h],
+    [AC_CHECK_LIB([miniupnpc], [main],, [have_miniupnpc=no])],
+    [have_miniupnpc=no]
+  )
 fi
 
 dnl Check for boost libs