First step towards inverting the dependency between glsl and nir (so nir
can be used without glsl). Also solves this issue with 'make distclean'
Making distclean in mesa
make[2]: Entering directory '/mnt/sdb1/Src64/Mesa-git/mesa/src/mesa'
Makefile:2486: ../glsl/.deps/shader_enums.Plo: No such file or directory
make[2]: *** No rule to make target '../glsl/.deps/shader_enums.Plo'. Stop.
make[2]: Leaving directory '/mnt/sdb1/Src64/Mesa-git/mesa/src/mesa'
Makefile:684: recipe for target 'distclean-recursive' failed
make[1]: *** [distclean-recursive] Error 1
make[1]: Leaving directory '/mnt/sdb1/Src64/Mesa-git/mesa/src'
Makefile:615: recipe for target 'distclean-recursive' failed
make: *** [distclean-recursive] Error 1
Reported-by: Andy Furniss <adf.lists@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
