* Fix URLs to use new upstream repo and use tag to track stable
releases.
- Fix homepage to use freecode site.
- Fix head URL.
* Now that isl needs to bootstrap before compile.
- Add :autoconf, :automake, :libtool as build dependencies, and run
./autogen.sh before configure.
* Enable verbose build output to help future debugging.
This is where e.g. glib puts similar scripts; potentially gdb from
homebrew-versions needs to be configured to look here instead of in its
keg, but I'm not an expert.
* Make cloog build using external isl.
- Needed by newer GCC for which the bundled isl in cloog 0.17.0 is
too old.
* Improve cloog test case indentation.
ClosesHomebrew/homebrew#15862.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>