[libpeas] Check the docs for errors during make check

[Garrett Regier <gregier src gnome org>]

commit 7e0cf451873af2a2300eabc88e769f617a58afdf
Author: Garrett Regier <garrettregier gmail com>
Date:   Fri Dec 19 23:45:55 2014 -0800

    Check the docs for errors during make check
    
    This uses the provided gtkdoc-check program.

 .gitignore                 |    1 +
 docs/reference/Makefile.am |   10 ++++++++++
 2 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index e7ae5cc..d5a179a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,6 +35,7 @@ Makefile.in
 /data/libpeas-gtk-1.0.pc
 /data/glade/libpeas-gtk.xml
 /depcomp
+/docs/reference/gtkdoc-check.test
 /libpeas-*.tar.bz2
 /libpeas/peas-marshal.h
 /libpeas/peas-marshal.c
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index 4d662b6..a0c134c 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -93,3 +93,13 @@ include $(top_srcdir)/gtk-doc.make
 # Other files to distribute
 EXTRA_DIST += \
        version.xml.in
+
+TESTS_ENVIRONMENT = \
+       SRCDIR=$(abs_srcdir)                            \
+       BUILDDIR=$(abs_builddir)                        \
+       DOC_MODULE=$(DOC_MODULE)                        \
+       DOC_MAIN_SGML_FILE=$(DOC_MAIN_SGML_FILE)
+
+check-local: $(GTKDOC_CHECK)
+       @$(TESTS_ENVIRONMENT) $(GTKDOC_CHECK)
+