With USE="-emacs" and /usr/bin/emacs symlinked to zile, configure will hang: checking for x86_64-pc-linux-gnu-pkg-config... no checking for pkg-config... /usr/bin/pkg-config checking pkg-config is at least version 0.9.0... yes checking for DESKTOP_FILE_UTILS... yes checking for emacs... emacs checking where .elc files should go...
Created attachment 246717 [details, diff] proposed fix for the ebuild
hmm, odd over quoting in the patch, dropped that and applied in tree. thanks! + 10 Sep 2010; Samuli Suominen <ssuominen@gentoo.org> + desktop-file-utils-0.16.ebuild: + Fix ./configure hang when /usr/bin/emacs is a symlink to app-editors/zile + wrt #336724 by Ulrich Müller.