option('overlay', type : 'feature', description : 'Build overlay tool') option('overlay_backends', type : 'array', value : ['auto'], choices : [ 'auto', 'x', 'xv' ], description : 'Overlay backends to enable') option('chamelium', type : 'feature', description : 'Build Chamelium test') option('valgrind', type : 'feature', description : 'Build with support for valgrind annotations') option('man', type : 'feature', description : 'Build man pages') option('docs', type : 'feature', description : 'Build documentation') option('tests', type : 'feature', description : 'Build tests') option('libdrm_drivers', type : 'array', value : ['auto'], choices : ['', 'auto', 'intel', 'nouveau', 'amdgpu'], description : 'libdrm libraries to be used') option('libunwind', type : 'feature', description : 'Use libunwind') option('runner', type : 'feature', description : 'Build test runner') option('oping', type : 'feature', description : 'Build test runner with liboping for pinging support') option('use_rpath', type : 'boolean', value : false, description : 'Set runpath on installed executables for libigt.so')