While most variables can be used in almost any context such as .conf, .bbclass, .inc, and .bb files, some variables are often associated with a particular locality or context. This appendix describes some common associations.

The following subsections provide lists of variables whose context is configuration: distribution, machine, and local.

This section lists variables whose context is the distribution, or distro. DISTRO DISTRO_NAME DISTRO_VERSION MAINTAINER PACKAGE_CLASSES TARGET_OS TARGET_FPU POKYMODE TCMODE POKYLIBC

This section lists variables whose context is the machine. TARGET_ARCH SERIAL_CONSOLE PACKAGE_EXTRA_ARCHS IMAGE_FSTYPES ROOT_FLASH_SIZE MACHINE_FEATURES MACHINE_EXTRA_RDEPENDS MACHINE_EXTRA_RRECOMMENDS MACHINE_ESSENTIAL_EXTRA_RDEPENDS MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS

This section lists variables whose context is the local configuration through the local.conf file. DISTRO MACHINE DL_DIR BBFILES EXTRA_IMAGE_FEATURES PACKAGE_CLASSES BB_NUMBER_THREADS BBINCLUDELOGS ENABLE_BINARY_LOCALE_GENERATION

The following subsections provide lists of variables whose context is recipes: required, dependencies, path, and extra build information.

This section lists variables that are required for recipes. DESCRIPTION LICENSE LIC_FILES_CHKSUM SECTION HOMEPAGE AUTHOR SRC_URI

This section lists variables that define recipe dependencies. DEPENDS RDEPENDS RRECOMMENDS RCONFLICTS RREPLACES

This section lists variables that define recipe paths. WORKDIR S FILES

This section lists variables that define extra build information for recipes. DISTRO_PN_ALIAS EXTRA_OECMAKE EXTRA_OECONF EXTRA_OEMAKE PACKAGES DEFAULT_PREFERENCE