Don't build a shared library on Windows.
Don't build a shared library on Windows.

Change-Id: Ia3f3957d5f63f5e99e31a84367bb1507fef6618d

DougFirErickson/ceres-solver,caomw/ceres-solver,timfel/ceres-bin,kartikkumar/ceres-solver,whuaegeanse/ceres-solver,ikoruk/ceres-solver,ysonggit/ceres-solver,timfel/ceres-bin,ikoruk/ceres-solver,pritasam/ceres-solver,entylop/ceres-solver,kartikkumar/ceres-solver,ysonggit/ceres-solver,stonier/ceres_solver,ysonggit/ceres-solver,kartikkumar/ceres-solver,jmwalls/ceres-solver-fork,stonier/ceres_solver,DougFirErickson/ceres-solver,ikoruk/ceres-solver,arnaudgelas/ceres-solver,whuaegeanse/ceres-solver,caomw/ceres-solver,timfel/ceres-bin,caomw/ceres-solver,techoe/ceres-solver,DougFirErickson/ceres-solver,vedanshu95/ceres-solver,vedanshu95/ceres-solver,stonier/ceres_solver,jmwalls/ceres-solver-fork,ysonggit/ceres-solver,stonier/ceres_solver,pritasam/ceres-solver,whuaegeanse/ceres-solver,timfel/ceres-bin,jmwalls/ceres-solver-fork,ikoruk/ceres-solver,pritasam/ceres-solver,jmwalls/ceres-solver-fork,arnaudgelas/ceres-solver,entylop/ceres-solver,techoe/ceres-solver,kartikkumar/ceres-solver,whuaegeanse/ceres-solver,arnaudgelas/ceres-solver,entylop/ceres-solver,ikoruk/ceres-solver,DougFirErickson/ceres-solver,techoe/ceres-solver,entylop/ceres-solver,vedanshu95/ceres-solver