[libchamplain] Don't export PKG_CONFIG_PATH in makefile

[Jiří Techet <jiritechet src gnome org>]

commit f9f39d9a954efd926fe27270efb846d9cdce4998
Author: JiÅ?í Techet <techet gmail com>
Date:   Sun Apr 3 14:36:48 2011 +0200

    Don't export PKG_CONFIG_PATH in makefile
    
    Thanks to Danilo Segan

 champlain-gtk/Makefile.am |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/champlain-gtk/Makefile.am b/champlain-gtk/Makefile.am
index ba80769..89b7e39 100644
--- a/champlain-gtk/Makefile.am
+++ b/champlain-gtk/Makefile.am
@@ -60,14 +60,13 @@ libchamplain_gtk_HEADERS = $(libchamplain_gtk_headers_public)
 
 nodist_libchamplain_gtk_HEADERS = $(libchamplain_gtk_headers_built)
 
+# Make the g-ir-scanner to find the not yet installed pkg-config files.
+PKG_CONFIG_PATH := $(top_builddir):$(PKG_CONFIG_PATH)
 
 if HAVE_INTROSPECTION
 
 -include $(INTROSPECTION_MAKEFILE)
 
-# Make the g-ir-scanner to find the not yet installed pkg-config files.
-export PKG_CONFIG_PATH=$(top_builddir)
-
 INTROSPECTION_GIRS =
 INTROSPECTION_SCANNER_ARGS = --warn-all --add-include-path=$(top_builddir)/champlain
 INTROSPECTION_COMPILER_ARGS = --includedir=$(top_builddir)/champlain