Leave out backend from gtk-doc generation

... which silences warnings about these classes missing from
polkit-1-sections.txt

https://bugs.freedesktop.org/show_bug.cgi?id=63573

diff --git a/docs/polkit/Makefile.am b/docs/polkit/Makefile.am
index e0b669a..13ca938 100644 (file)
--- a/docs/polkit/Makefile.am
+++ b/docs/polkit/Makefile.am
@@ -16,7 +16,7 @@ SCAN_OPTIONS=--ignore-headers=config.h
 # gtk-doc will search all .c and .h files beneath these paths
 # for inline comments documenting functions and macros.
 # e.g. DOC_SOURCE_DIR=$(top_srcdir)/gtk $(top_srcdir)/gdk
-DOC_SOURCE_DIR=$(top_srcdir)/src
+DOC_SOURCE_DIR=$(top_srcdir)/src/polkit $(top_srcdir)/src/polkitagent
 
 # Used for dependencies
 HFILE_GLOB=$(top_srcdir)/src/polkit*/*.h