[gnome-sudoku/multithread_printing] lib/Makefile.am: Fix --target-glib flag

[Parin Porecha <parinporecha src gnome org>]

commit bdb6612945ada170c6179bd3fe9e47d25e67a80e
Author: Parin Porecha <parinporecha gmail com>
Date:   Mon Aug 18 18:38:16 2014 +0200

    lib/Makefile.am: Fix --target-glib flag

 lib/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 8a8a1df..c990fac 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -27,7 +27,7 @@ libsudoku_la_VALAFLAGS = \
        --pkg json-glib-1.0 \
        --pkg posix \
        --pkg GTop-2.0  \
-       --target-glib>= GLIB_REQUIRED@  \
+       --target-glib=$(GLIB_REQUIRED)  \
        --header=libsudoku.h \
        --vapi=libsudoku.vapi