[perl-Glib] Fix building with perl <= 5.14

[Torsten SchÃnfeld <tsch src gnome org>]

commit 351e96f98d33331be4ec971c3d9ee9a3f642aa67
Author: Torsten SchÃnfeld <kaffeetisch gmx de>
Date:   Wed Oct 3 15:18:29 2012 +0200

    Fix building with perl <= 5.14
    
    The ExtUtils::MakeMaker version shipped with perl <= 5.14 does not seem to
    handle references in the meta information correctly.

 Makefile.PL |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.PL b/Makefile.PL
index 01ab922..c928d95 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -118,7 +118,7 @@ my %meta_merge = (
         },
         prereqs => {
             configure => {
-                requires => \%PREREQ_PM,
+                requires => {%PREREQ_PM}, # no direct ref for 5.14 compatibility
             },
         },
         no_index => {