With USE="-emacs" and /usr/bin/emacs symlinked to zile, configure will hang: checking dependency style of x86_64-pc-linux-gnu-gcc... gcc3 checking whether make sets $(MAKE)... (cached) yes checking for x86_64-pc-linux-gnu-ranlib... x86_64-pc-linux-gnu-ranlib checking for emacs... emacs checking where .elc files should go...
Created attachment 246725 [details, diff] proposed fix for the ebuild
Great. Fixed in -r2.