Mac OS Sierra: checking whether the C compiler works… no

Question

I want to compile a C library on my MacOS Sierra system, but I am getting the following error:

checking for a BSD-compatible install... /usr/local/bin/ginstall -         


        

Answer 1

Start Xcode, select 'Preferences', then 'Locations'. You'll notice a dropdown control at 'Command Line Tools'. Select the newest version, close the dialog window, then call brew again. Restart your computer and run it again.