mesa-lib broken

[Dave Brown]

Seems it was bumped prematurely, from its build:

    checking expat.h usability... yes
    checking expat.h presence... yes
    checking for expat.h... yes
    checking for XML_ParserCreate in -lexpat... yes
    checking for INTEL... yes
    checking for NOUVEAU... yes
    checking for RADEON... no
    configure: error: Package requirements (libdrm_radeon >= 2.4.42) were
    not met:

    Requested 'libdrm_radeon >= 2.4.42' but version of libdrm_radeon is
    2.4.41

    Consider adjusting the PKG_CONFIG_PATH environment variable if you
    installed software in a non-standard prefix.

As expected, here's the version of libdrm in the moonbase:

root at derp ~ # lvu DETAILS libdrm
          MODULE=libdrm
         VERSION=2.4.41

--Dave