Makefile: error out if ./configure wasn't executed before the 'all' target.
Makefile: error out if ./configure wasn't executed before the 'all' target.

ebfe/xbps,datenwolf/xbps,datenwolf/xbps,datenwolf/xbps,ebfe/xbps,ebfe/xbps,stpx/xbps,stpx/xbps,stpx/xbps