tree d5689a8fa45ad1c06b9e2fe97bdcdae3eb4f0184
parent dff798b1728dda06e8421b96df9ad1d67fc6f4b1
author Ray Donnelly <mingw.android@gmail.com> 1375822050 +0100
committer Ray Donnelly <mingw.android@gmail.com> 1375822511 +0100

MinGW-w64 build fix (lacks ffs declaration)

Define ffs as __builtin_ffs if ffs is not declared but
__builtin_ffs is declared.

This problem only happens at -O0 as one of the optimization
passes substitutes ffs for __builtin_ffs.

.. this patch has been submitted to the ISL project and also
apparently merged, though it is not in the publically visible
repository yet.