[introspection] Do not parse private sources

Private sources include private headers which we may not be able
to parse properly since some of them use unsupported syntax such
as objective-c.

diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 389d7f76a4051151792ca943cfa5c066f0716537..15397d36715a48d3dcf12517901fd08360010a91 100644 (file)
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -901,7 +901,7 @@ LDADDS =                                                            \
 if HAVE_INTROSPECTION
 introspection_files = \
     $(filter-out gtktextlayout.h, $(gtkinclude_HEADERS)) \
-    $(gtk_all_c_sources) \
+    $(gtk_base_c_sources) \
     gtktypebuiltins.h \
     gtktypebuiltins.c