On Thu, 22 Sep 2016 02:11:44 -0700 Paul Eggert wrote: >In the failed 'configure', what does 'config.log' say afterwards? Can you attach a gzipped copy of that file? Since I have not seen config.log, I'm attaching a copy of the same error I got. I'm using Sierra with Xcode v7.3 compiling against the latest trunk. If I use ./configure --without-x, then I get another set of errors about missing jpg, png, and such libraries. I know I have them all. I can compile other apps. I even have the AppKit.h file. Thanks for helping, Lambda Coder.