Gecode was updated to 3.7.2 in 672c5ab20b77 which fixed the error with
clang. Geocode passes make check.
* Remove fails_with block.
* Remove unrecognized configure option for dependency-tracking
* Remove --disable-debug option. It is the defualt.
* Add --disable-examples option. This stops two dozen example
binaries from filling /usr/local/bin that have common names like
golf, sudoku, grocery, and partition.
ClosesHomebrew/homebrew#11374.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>