[phodav] build-sys: add missing files to gitignore

[Marc-Andre Lureau <malureau src gnome org>]

commit d0b0696aaafac00bbac9e54a4e3c6e0ae8dfd050
Author: Marc-André Lureau <marcandre lureau redhat com>
Date:   Tue Dec 20 10:54:42 2016 +0100

    build-sys: add missing files to gitignore
    
    https://bugzilla.gnome.org/show_bug.cgi?id=752157

 Makefile.am |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index d8e2d53..7c3cbf4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -171,6 +171,11 @@ EXTRA_DIST +=                                      \
 
 AM_DISTCHECK_CONFIGURE_FLAGS = --enable-gtk-doc
 
+DISTCLEANFILES =       \
+       gtk-doc.make    \
+       m4/gtk-doc.m4   \
+       m4/intltool.m4
+
 MAINTAINERCLEANFILES =                                 \
        $(srcdir)/gtk-doc.make                          \
        $(GITIGNORE_MAINTAINERCLEANFILES_TOPLEVEL)      \