doc/Makefile.am: work correctly in out-of-tree builds
Reference $(srcdir)/Makefile.am rather than just Makefile.am to make it
work in out-of-tree builds.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 787c304..3c5353e 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -162,7 +162,7 @@
MANS="$$MANS\ngdoc_MANS += man/$$i.3"; \
TEXINFOS="$$TEXINFOS\ngdoc_TEXINFOS += texi/$$i.texi"; \
done; \
- grep -v -e '^gdoc_MANS += ' -e '^gdoc_TEXINFOS += ' Makefile.am | \
+ grep -v -e '^gdoc_MANS += ' -e '^gdoc_TEXINFOS += ' $(srcdir)/Makefile.am | \
perl -p -e "s,^gdoc_MANS =,gdoc_MANS =$$MANS,;" | \
perl -p -e "s,^gdoc_TEXINFOS =,gdoc_TEXINFOS =$$TEXINFOS,;" \
> tmp-$@;
