[SM-2011032821203610839] Added by stf

SubMaster Action:
Added by stf

On Patch [2011032821203610839]:

Stefan Fiedler:
	scripts: define and use is_stage function;
		handle .xz archives
	functions: add pkgcheck function;
		set --build confopt only in native stage;
		fix check for --with/--without confopts;
		don't process lib corrections on subdirs
	config.func: exit if descparser can't be built
	config.in: add default optimization setting
	parse-config: set CPP variable
	Build-Tools: exit with Error if Config failed
	Build-Pkg: create config.cache in preconf hook and only in stage 2;
		don't extract cvs files if $nocvsinsrcdir 
		fix parsing of .pc files
		show changes in ld.so.cache when ldconfig is run	



--
https://www.rocklinux.net/submaster/?mode=patch&uid=2011032821203610839