THRIFT-976 c_glib tutorial

Patch: Simon South
Signed-off-by: Roger Meier <roger@apache.org>
diff --git a/configure.ac b/configure.ac
index 5af20de..bccfc69 100755
--- a/configure.ac
+++ b/configure.ac
@@ -663,6 +663,7 @@
   test/py.tornado/Makefile
   test/rb/Makefile
   tutorial/Makefile
+  tutorial/c_glib/Makefile
   tutorial/cpp/Makefile
   tutorial/go/Makefile
   tutorial/hs/Makefile