[gobject-introspection] build/win32: Fix make -jX dist

[Rico Tzschichholz <ricotz src gnome org>]

commit b15b3c8fa78ff4a2c42f5f7c0aef83dc16419b0b
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Mar 17 17:46:47 2015 +0100

    build/win32: Fix make -jX dist

 build/win32/vs11/Makefile.am |    2 ++
 build/win32/vs12/Makefile.am |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/build/win32/vs11/Makefile.am b/build/win32/vs11/Makefile.am
index 4789b66..ddff6f3 100644
--- a/build/win32/vs11/Makefile.am
+++ b/build/win32/vs11/Makefile.am
@@ -32,3 +32,5 @@ MSVC_VER = 11
 MSVC_VER_LONG = 2012
 
 include $(top_srcdir)/build/Makefile-newvs.am
+
+$(EXTRA_DIST): create_vcxproj copy_filters create_props
diff --git a/build/win32/vs12/Makefile.am b/build/win32/vs12/Makefile.am
index c363869..f112f08 100644
--- a/build/win32/vs12/Makefile.am
+++ b/build/win32/vs12/Makefile.am
@@ -32,3 +32,5 @@ MSVC_VER = 12
 MSVC_VER_LONG = 2013
 
 include $(top_srcdir)/build/Makefile-newvs.am
+
+$(EXTRA_DIST): create_vcxproj copy_filters create_props