Interesting defaults

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• By default the staging location is defined in staging.bbclass and is modified as necessary (see STAGING_DIR_HOST for details)
• When a component is built the WORKDIR, where the yocto build logs and build products are stored, is defined as "${BASE_WORKDIR}/${MULTIMACH_TARGET_SYS}/${PN}/${EXTENDPE}${PV}-${PR}" see MULTIMACH_TARGET_SYS for details
• By default the compiler file name is configured as TARGET_PREFIX (see TARGET_PREFIX for details).
• By default the compiler file is stored in bindir, libraries in libdir, lib exec files in libexecdir includes in includedir etc. These Architecture Dependent Paths are derived from various variables
• gcc-configure-common.inc contains a patch to gcc/defaults.h that ensures that system headers and system libs paths are updated see Gcc System Paths Patch

^{Introducing EXOTIC defines Per Yocto Recipe Details}