3.1b make failure with gstreamer

Hello Manuel,

gstreamer api compilation fails while gst-plusgins-base library isn't
installed. (Gentoo portage doesn't include any gst plugins while
emerging gstreamer nor gst/interfaces include files).

Bigloo's configure script detects this and defines
GSTREAMER_HAVE_AUDIO 0, but api/gstreamer/src/Llib/gstplugin-mixer.scm
tries to compile, even if <gst/interfaces/mixer.h> doesn't exists,
which makes Make fail.
I think make should compile gstplugin-mixer only when
BGL_GSTREAMER_HAVE_AUDIO equals 1.

(emerging gst-plusgins-base suffices to compile the bgl-gst lib)

--

-- 
Cyprien Nicolas
Undergraduate Student
Computer Science - Valrose Campus
University of Nice - Sophia Antipolis