Comment 2 for bug 1215751

/usr/bin/xml2-config is different between architectures, yet is shipped in a non-arch specific location.

# diff -U 4 amd64-foo/usr/bin/xml2-config i386-foo/usr/bin/xml2-config
--- amd64-foo/usr/bin/xml2-config 2013-07-16 19:47:12.000000000 +0100
+++ i386-foo/usr/bin/xml2-config 2013-07-16 19:48:44.000000000 +0100
@@ -2,9 +2,9 @@

 prefix=/usr
 exec_prefix=${prefix}
 includedir=${prefix}/include
-libdir=${prefix}/lib/x86_64-linux-gnu
+libdir=${prefix}/lib/i386-linux-gnu

 usage()
 {
     cat <<EOF