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034ee07ed9
Patch the location in cmake where the toolchain file is loaded to use the (new) OE_CMAKE_TOOLCHAIN_FILE variable to select a default toolchain if no toolchain has been specified. The cmake alias is removed. The alternatives: - shell alias fails when cmake is called indirectly (ex: a makefile managing several projects which calls cmake for some of them) because aliases are not inherited - wrapper script that unconditionally adds "-D..." breaks cmake's build tests and many other things as it causes cmake to believe it should be configuring things when it should not be. For example, `cmake -DCMAKE_TOOLCHAIN_FILE=... --build .` does not work (note that this also breaks people directly using `cmake --build .` with the current alias). (From OE-Core rev: da60be3768e7183794d63548166d107dbd0a4973) Signed-off-by: Cody P Schafer <dev@codyps.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.