I'm trying to use QT with opengl support. The opengl comes with mesa, and mesa comes with xorg. I select them from buildroot configuration. The buildroot created rootfs successfully without opengl es support. libGL and libGLU files are exist but the libGLES_CM and the libGLESv2 files (which are the essential files for QT opengl) are absent. Then I examined the mesa config.log file; -------- $ ./configure --target=i686-linux --host=i686-linux --build=i686-pc-linux-gnu --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --disable-gtk-doc --disable-nls --disable-ipv6 --enable-egl --enable-glu --disable-glw --disable-glut --enable-gles1 --enable-gles2 --disable-gallium --with-driver=dri --with-dri-drivers=swrast --disable-static configure:9068: WARNING: unrecognized options: --disable-gtk-doc, --disable-nls, --disable-ipv6, --enable-gles1, --enable-gles2 -------- Why the mesa doesn't recognize --enable-gles2 option? Also I tried to configure mesa from <a href="http://mesa3d.mk">mesa3d.mk</a> file under buildroot, but buildroot still uses the above options.