[clutter] build: Enable gtk-doc check

[Emmanuele Bassi <ebassi src gnome org>]

commit 8af4dfc8aefabe393e8e0ac5cb12eb169effdc05
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Mar 12 17:40:24 2015 +0000

    build: Enable gtk-doc check
    
    This should catch missing symbols during `make check`, and hopefully
    lead to their addition prior to a release.

 doc/reference/clutter/Makefile.am |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/doc/reference/clutter/Makefile.am b/doc/reference/clutter/Makefile.am
index 51b7024..b6f9abb 100644
--- a/doc/reference/clutter/Makefile.am
+++ b/doc/reference/clutter/Makefile.am
@@ -201,6 +201,5 @@ TESTS_ENVIRONMENT = \
        SRCDIR=$(abs_srcdir) \
        BUILDDIR=$(abs_builddir)
 
-# XXX: Cannot enable without breaking on platform-specific symbols
-#TESTS = $(GTKDOC_CHECK)
+TESTS = $(GTKDOC_CHECK)
 endif