Unfortunately the pixman and cairo configury consider any non-empty stderr indicating an error, even if it just a warning and the exit status of the command is success. Change-Id: I921f72fcfc127d9c34a8db448926e478a82646d6
The graphics library, used for anti-aliasing. From [http://cairographics.org/]. This code is used by default only on Linux, though it is also available on Mac. There is a cairo-canvas implementation that is the main customer, and it is enabled via 'use hardware acceleration' in the general options.