Comment # 11 on bug 75794 from Michel Dänzer

First of all, have you confirmed that the problem is still present in Mesa
10.x?

Mesa 9.0 already didn't have the classic r300 driver anymore. You need to use
--with-gallium-drivers=r300 instead of --with-dri-drivers="r300" (and maybe
also drop --disable-gallium just in case, although AFAICT that shouldn't have
any effect).