[gnome-sudoku/multithread_printing] configure.ac: Use AC_SUBST([GLIB_REQUIRED])

[Parin Porecha <parinporecha src gnome org>]

commit 865ea1e30c5f552d8998651b6749470c81119b6d
Author: Parin Porecha <parinporecha gmail com>
Date:   Mon Aug 18 17:30:06 2014 +0200

    configure.ac: Use AC_SUBST([GLIB_REQUIRED])

 configure.ac    |    2 +-
 lib/Makefile.am |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 134854b..d61b1e7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -43,7 +43,7 @@ PKG_CHECK_MODULES(LIBSUDOKU, [
   json-glib-1.0
 ])
 
-AC_SUBST(TARGET_GLIB, 2.32)
+AC_SUBST([GLIB_REQUIRED])
 
 AC_PATH_PROG([APPDATA_VALIDATE], [appdata-validate], [/bin/true])
 AC_PATH_PROG([DESKTOP_FILE_VALIDATE], [desktop-file-validate], [/bin/true])
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 1db260c..8a8a1df 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= TARGET_GLIB@     \
+       --target-glib>= GLIB_REQUIRED@  \
        --header=libsudoku.h \
        --vapi=libsudoku.vapi