This is building in a freshly-setup jhbuild. Building gst-plugins-base fails with

videoconvert.c: In function 'convert_AYUV_ARGB':
videoconvert.c:1209:7: error: too many arguments to function 'video_convert_orc_convert_AYUV_ARGB'
       width, height);
       ^
In file included from videoconvert.c:31:0:
gstvideoconvertorc.h:113:6: note: declared here
 void video_convert_orc_convert_AYUV_ARGB (guint8 * ORC_RESTRICT d1, int d1_stride, const guint8 * ORC_RESTRICT s1, int s1_stride, int n, int m);
      ^
videoconvert.c: In function 'convert_AYUV_BGRA':
videoconvert.c:1223:7: error: too many arguments to function 'video_convert_orc_convert_AYUV_BGRA'
       width, height);
       ^
In file included from videoconvert.c:31:0:
gstvideoconvertorc.h:114:6: note: declared here
 void video_convert_orc_convert_AYUV_BGRA (guint8 * ORC_RESTRICT d1, int d1_stride, const guint8 * ORC_RESTRICT s1, int s1_stride, int n, int m);
      ^
videoconvert.c: In function 'convert_AYUV_ABGR':
videoconvert.c:1237:7: error: too many arguments to function 'video_convert_orc_convert_AYUV_ABGR'
       width, height);
       ^
In file included from videoconvert.c:31:0:
gstvideoconvertorc.h:115:6: note: declared here
 void video_convert_orc_convert_AYUV_ABGR (guint8 * ORC_RESTRICT d1, int d1_stride, const guint8 * ORC_RESTRICT s1, int s1_stride, int n, int m);
      ^
videoconvert.c: In function 'convert_AYUV_RGBA':
videoconvert.c:1251:7: error: too many arguments to function 'video_convert_orc_convert_AYUV_RGBA'
       width, height);
       ^
In file included from videoconvert.c:31:0:
gstvideoconvertorc.h:116:6: note: declared here
 void video_convert_orc_convert_AYUV_RGBA (guint8 * ORC_RESTRICT d1, int d1_stride, const guint8 * ORC_RESTRICT s1, int s1_stride, int n, int m);
      ^
videoconvert.c: In function 'convert_I420_BGRA':
videoconvert.c:1268:9: error: too many arguments to function 'video_convert_orc_convert_I420_BGRA'
         width);
         ^
In file included from videoconvert.c:31:0:
gstvideoconvertorc.h:117:6: note: declared here
 void video_convert_orc_convert_I420_BGRA (guint8 * ORC_RESTRICT d1, const guint8 * ORC_RESTRICT s1, const guint8 * ORC_RESTRICT s2, const guint8 * ORC_RESTRICT s3, int n);