lib/Makefile: build -Wno-error for included libfetch for now.
lib/Makefile: build -Wno-error for included libfetch for now.

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