opengl: fix configure test
# gpg: Signature made Tue Mar 17 10:11:24 2015 GMT using RSA key ID
D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-gl-
20150317-1:
opengl: fix configure test
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>