[oe] gst-plugins-base tries to use host orcc

[Michael Smith]

Hi,

gst-plugins-base-0.10.30 fails to build because common/m4/orc.m4 uses 
"pkg-config --variable=orcc orc-0.4" to get the path to orcc, instead of 
just using "orcc" in the path.

tmp/sysroots/i486-oe-linux/lib/pkgconfig/orc-0.4.pc has:

exec_prefix=
toolsdir=${exec_prefix}/bin
orcc=${toolsdir}/orcc

so Make ends up calling /bin/orcc, which doesn't exist.

For orc-native, tmp/sysroots/x86_64-linux/lib/pkgconfig/orc-0.4.pc has:

exec_prefix=/..../tmp/sysroots/x86_64-linux

but I don't know how to make pkg-config use this pc file when looking 
for orcc, or if it even should. Has anybody else run into this?

Mike