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Chia-I Wu authored
The idea is that DRI driver, libGL and libOSMesa are libraries that can be independently enabled, yet --with-driver does not allow us to easily do that, if not impossible. This also matches what --enable-{egl,xorg,d3d1x} do for the respective libraries. There are two libGL providers: Xlib-based and DRI-based. They cannot coexist. To be able to choose between them, --enable-xlib-glx is also added. With this commit, --with-driver=dri can be replaced by $ ./configure --enable-dri --enable-glx --disable-osmesa --with-driver=xlib can be replaced by $ ./configure --disable-dri --enable-glx --enable-osmesa \ --enable-xlib-glx and --with-driver=osmesa can be replaced by $ ./configure --disable-dri --disable-glx --enable-osmesa Some combinations that cannot be supported with --with-driver will produce errors at the moment. But in the future, we would like to support, for example, $ ./configure --enable-dri --disable-glx --enable-egl (build libEGL and DRI drivers, but not libGL) Note that this commit still keeps --with-driver for transitional purpose.
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