NOWERROR -------- Ref: http://www.mameworld.info/ubbthreads/showflat.php?Cat=&Number=379425 If your compile fails with ./3rdparty/bgfx/3rdparty/khronos/glx/glxext.h:39:0: error: "GLX_GLXEXT_VERSION" redefined [-Werror] Compile with No Warning Error flag enabled (Or comment out offending define). Use REGENIE=1 to regenerate makefile options (ie. NOWERROR=1). make NOWERROR=1 REGENIE=1 or make SUBTARGET=arcade NOWERROR=1 REGENIE=1