gstreamer_vaapi-1.8.1 won't compile

[Somchai Smythe]

./configure --prefix=/usr/X11R7 --sysconfdir=/etc \
   --localstatedir=/var --mandir=/usr/X11R7/man \
   --disable-static --disable-wayland --with-pic

...

gstreamer-vaapi configuration summary:

Installation Prefix .............. : /usr/X11R7
GStreamer API version ............ : 1.8
VA-API version ................... : 0.38.1
Video encoding ................... : yes
Video outputs .................... : drm x11 glx

....

make V1

...

gstvaapidecode.c: In function 'gst_vaapidecode_init':
gstvaapidecode.c:77:25: error: 'gst_debug_vaapidecode' undeclared
(first use in this function)
 #define GST_CAT_DEFAULT gst_debug_vaapidecode
                         ^
gstvaapidecode.c:1162:63: note: in expansion of macro 'GST_CAT_DEFAULT'
   gst_vaapi_plugin_base_init (GST_VAAPI_PLUGIN_BASE (decode), GST_CAT_DEFAULT);
                                                               ^
gstvaapidecode.c:77:25: note: each undeclared identifier is reported
only once for each function it appears in
 #define GST_CAT_DEFAULT gst_debug_vaapidecode
                         ^
gstvaapidecode.c:1162:63: note: in expansion of macro 'GST_CAT_DEFAULT'
   gst_vaapi_plugin_base_init (GST_VAAPI_PLUGIN_BASE (decode), GST_CAT_DEFAULT);
                                                               ^
Makefile:734: recipe for target 'libgstvaapi_la-gstvaapidecode.lo' failed

The gstreamer, gst_plugins_{bad,base,good,ugly}, gst_libav,
gst_validate all build ok.