View source for Directories and installation variables

== Yocto Project Openembedded directories installation variables ==

The following table provides a list of the variables that are used to control the directories into which files are installed.

These variables can be used directly by the recipe to refer to paths that will be used after the package is installed.

 Variable name	Definition	        Typical value
 -------------  --------------------    --------------------
 prefix	        /usr                    /usr
 base_prefix	(empty)	                (empty)
 exec_prefix	${base_prefix}	        (empty)
 base_bindir	${base_prefix}/bin	/bin
 base_sbindir	${base_prefix}/sbin	/sbin
 base_libdir	${base_prefix}/lib	/lib
 datadir        ${prefix}/share	        /usr/share
 sysconfdir	/etc	                /etc
 localstatedir	/var	                /var
 infodir        ${datadir}/info	        /usr/share/info
 mandir         ${datadir}/man	        /usr/share/man
 docdir         ${datadir}/doc	        /usr/share/doc
 servicedir	/srv	                /srv
 bindir         ${exec_prefix}/bin	/usr/bin
 sbindir        ${exec_prefix}/sbin	/usr/sbin
 libexecdir	${exec_prefix}/libexec	/usr/libexec
 libdir         ${exec_prefix}/lib	/usr/lib
 includedir	${exec_prefix}/include	/usr/include
 palmtopdir	${libdir}/opie	        /usr/lib/opie
 palmqtdir	${palmtopdir}	        /usr/lib/opie

When specifying paths as part of the FILES variable, it is good practice to use appropriate path variables. 

For example, use ${sysconfdir} rather than /etc, or ${bindir} rather than /usr/bin. 

You can find a list of these variables at the top of the meta/conf/bitbake.conf file in the Source Directory. 

You will also find the default values of the various FILES:* variables in this file.
https://git.yoctoproject.org/cgit.cgi/poky/plain/meta/conf/bitbake.conf