Fix glib cross compile

Uses proper PKG_CONFIG_PATH when cross-compiling

Upstream-Status: Pending

Signed-of-by: Aws Ismail <aws.ismail@windriver.com>

diff --git a/configure.ac b/configure.ac
index b5f5aad..f5a5b74 100644
--- a/configure.ac
+++ b/configure.ac
@@ -110,13 +110,13 @@ else
 *** GLIB is always available from ftp://ftp.gtk.org/.])
 fi
 
-exact_version=`pkg-config --modversion $GLIB`;
-GLIB_CFLAGS=`pkg-config --cflags $GLIB $GTHREAD`
-GLIB_LIBS=`pkg-config --libs $GLIB $GTHREAD`
-GLIB_ONLY_CFLAGS=`pkg-config --cflags $GLIB`
-GLIB_ONLY_LIBS=`pkg-config --libs $GLIB`
-GMODULE_ONLY_CFLAGS=`pkg-config --cflags $GMODULE`
-GMODULE_ONLY_LIBS=`pkg-config --libs $GMODULE`
+exact_version=`PKG_CONFIG_PATH=$PKG_CONFIG_PATH pkg-config --modversion $GLIB`;
+GLIB_CFLAGS=`PKG_CONFIG_PATH=$PKG_CONFIG_PATH pkg-config --cflags $GLIB $GTHREAD`
+GLIB_LIBS=`PKG_CONFIG_PATH=$PKG_CONFIG_PATH pkg-config --libs $GLIB $GTHREAD`
+GLIB_ONLY_CFLAGS=`PKG_CONFIG_PATH=$PKG_CONFIG_PATH pkg-config --cflags $GLIB`
+GLIB_ONLY_LIBS=`PKG_CONFIG_PATH=$PKG_CONFIG_PATH pkg-config --libs $GLIB`
+GMODULE_ONLY_CFLAGS=`PKG_CONFIG_PATH=$PKG_CONFIG_PATH pkg-config --cflags $GMODULE`
+GMODULE_ONLY_LIBS=`PKG_CONFIG_PATH=$PKG_CONFIG_PATH pkg-config --libs $GMODULE`
 
 # On some versions of Solaris the pkg-config file for gthread-2.0 contains a
 # compiler option, '-mt', that is incompatible with gcc