From 11e52ef0a157acd6a6711b7635cda50467e606ae Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 27 Nov 2011 20:00:30 +0100
Subject: configure: fix to make older pkg-config play well

configure.ac:1349: error: possibly undefined macro: PKG_CONFIG_LIBDIR

Obviously this is not a problem with pkg-config 0.26 but older versions
seem to show this.

Fix suggested by: Kamil Dudka
Reported by: Guenter
Bug: http://curl.haxx.se/mail/lib-2011-11/0298.html
---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index 52158f119..7d2c7e4d5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2377,6 +2377,10 @@ case "$LIBIDN" in
        fi
 
        if test "x$idn" != "xyes"; then
+
+         dnl to prevent errors with pkg-config < 0.26
+         m4_pattern_allow(PKG_CONFIG_LIBDIR)
+
          dnl check with pkg-config
          PKG_CHECK_MODULES(LIBIDN_PC, libidn >= 0.0.0, [idn=yes], [idn=no])
          if test "x$idn" = "xyes"; then
-- 
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