[gtk+] Fix CAIRO_PREFIX for cross-build environments

[Matthias Clasen <matthiasc src gnome org>]

commit 8a487aca2cf007bf72fd243fa13f8128f925017f
Author: Volker Grabsch <bugzilla gnome org v notjusthosting com>
Date:   Mon May 17 19:00:02 2010 -0400

    Fix CAIRO_PREFIX for cross-build environments
    
    configure.ac was using pkg-config instead of $PKG_CONFIG for this
    prefix, leading to incorrect results in cross-build environments.
    
    Bug 618870.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index dbe800b..d8a20eb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1778,7 +1778,7 @@ fi
 GLIB_PREFIX="`$PKG_CONFIG --variable=prefix glib-2.0`"
 ATK_PREFIX="`$PKG_CONFIG --variable=prefix atk`"
 PANGO_PREFIX="`$PKG_CONFIG --variable=prefix pango`"
-CAIRO_PREFIX="`pkg-config --variable=prefix cairo`"
+CAIRO_PREFIX="`$PKG_CONFIG --variable=prefix cairo`"
 
 if test $enable_explicit_deps != yes ; then
   GDK_PIXBUF_EXTRA_LIBS=