Rename macro to avoid namespace conflicts.
Rename macro to avoid namespace conflicts.

Change-Id: Iecf00f67dcd6250d6919875cee79a600fccab039

timfel/ceres-bin,stonier/ceres_solver,ikoruk/ceres-solver,whuaegeanse/ceres-solver,stonier/ceres_solver,whuaegeanse/ceres-solver,jmwalls/ceres-solver-fork,DougFirErickson/ceres-solver,whuaegeanse/ceres-solver,DougFirErickson/ceres-solver,kartikkumar/ceres-solver,arnaudgelas/ceres-solver,timfel/ceres-bin,arnaudgelas/ceres-solver,jmwalls/ceres-solver-fork,ikoruk/ceres-solver,arnaudgelas/ceres-solver,whuaegeanse/ceres-solver,entylop/ceres-solver,kartikkumar/ceres-solver,timfel/ceres-bin,DougFirErickson/ceres-solver,entylop/ceres-solver,ikoruk/ceres-solver,jmwalls/ceres-solver-fork,ysonggit/ceres-solver,ysonggit/ceres-solver,ysonggit/ceres-solver,kartikkumar/ceres-solver,ysonggit/ceres-solver,ikoruk/ceres-solver,entylop/ceres-solver,kartikkumar/ceres-solver,stonier/ceres_solver,ikoruk/ceres-solver,timfel/ceres-bin,DougFirErickson/ceres-solver,entylop/ceres-solver,jmwalls/ceres-solver-fork,stonier/ceres_solver