Description: GTKDOC_CHECK refers to the tool, not the tests
Author: Stephen Kitt <skitt@debian.org>

--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -35,7 +35,6 @@
 TESTS_ENVIRONMENT = cd $(srcdir) &&					\
   DOC_MODULE=$(DOC_MODULE) DOC_MAIN_SGML_FILE=$(DOC_MAIN_SGML_FILE)	\
   SRCDIR=$(abs_srcdir) BUILDDIR=$(abs_builddir)
-TESTS = $(GTKDOC_CHECK)
 endif
 
 -include $(top_srcdir)/git.mk
