tree b864411b3fd36cfb21b414eacc840a923257cdfd
parent aecb2dc92b4aa7f3bf77a1ac918e62953602392b
author Keir Mierle <mierle@gmail.com> 1345659031 -0700
committer Keir Mierle <mierle@gmail.com> 1345659031 -0700

Add a workaround for an Android NDK compiler bug.

On certain NDK build configurations, one of the innermost
parts of the Schur eliminator would get compiled
incorrectly. The compiler changed a -= to a +=.

The normal Ceres unit tests caught the problem; however,
since it is not possible to build the tests with the NDK
(only with the standalone toolchain) this was difficult to
track down. Finding the issue involved pasting the schur
eliminator unit test inside of solver_impl.cc and other such
hacks.

Change-Id: Ie91bb545d74fe39f0c8cbd1a6eb69ee4d8b25fb2