[testing] Missing glx{info,gears} in mesa 7.9

[Stefano Avallone <stavallo@xxxxxxxx>]

Hi,

the latest mesa package (7.9) in testing is missing utilities such as glxinfo 
and glxgears. Since I built mesa 7.9-rc2 myself I noticed that those utilities 
are not built with the current PKGBUILD. As a workaround, I added 

cd "${srcdir}/Mesa-${pkgver}/progs/xdemos"
make

to the build() function. Don't know if there is a better solution.

Cheers,
Stefano