Don't check for atomic_ops library for now.
Don't check for atomic_ops library for now.

(Logical change 1.283)

rntz/libunwind,Chilledheart/libunwind,pathscale/libunwind,SyndicateRogue/libunwind,bo-on-software/libunwind,yuyichao/libunwind,fdoray/libunwind,0xlab/0xdroid-external_libunwind,krytarowski/libunwind,evaautomation/libunwind,geekboxzone/mmallow_external_libunwind,tkelman/libunwind,vtjnash/libunwind,ehsan/libunwind,olibc/libunwind,fdoray/libunwind,geekboxzone/mmallow_external_libunwind,atanasyan/libunwind,adsharma/libunwind,geekboxzone/lollipop_external_libunwind,0xlab/0xdroid-external_libunwind,zliu2014/libunwind-tilegx,maltek/platform_external_libunwind,wdv4758h/libunwind,rantala/libunwind,CyanogenMod/android_external_libunwind,rogwfu/libunwind,dropbox/libunwind,dagar/libunwind,maltek/platform_external_libunwind,cloudius-systems/libunwind,evaautomation/libunwind,frida/libunwind,fillexen/libunwind,maltek/platform_external_libunwind,fillexen/libunwind,mpercy/libunwind,libunwind/libunwind,djwatson/libunwind,Chilledheart/libunwind,androidarmv6/android_external_libunwind,dreal-deps/libunwind,igprof/libunwind,wdv4758h/libunwind,Keno/libunwind,vegard/libunwind,unkadoug/libunwind,dropbox/libunwind,pathscale/libunwind,bo-on-software/libunwind,yuyichao/libunwind,zeldin/platform_external_libunwind,zliu2014/libunwind-tilegx,cms-externals/libunwind,SyndicateRogue/libunwind,atanasyan/libunwind-android,DroidSim/platform_external_libunwind,CyanogenMod/android_external_libunwind,rogwfu/libunwind,atanasyan/libunwind,martyone/libunwind,ehsan/libunwind,vegard/libunwind,mpercy/libunwind,geekboxzone/lollipop_external_libunwind,fillexen/libunwind,adsharma/libunwind,adsharma/libunwind,Keno/libunwind,rntz/libunwind,igprof/libunwind,cloudius-systems/libunwind,igprof/libunwind,rntz/libunwind,atanasyan/libunwind,jrmuizel/libunwind,atanasyan/libunwind-android,Keno/libunwind,dagar/libunwind,jrmuizel/libunwind,jrmuizel/libunwind,frida/libunwind,tony/libunwind,joyent/libunwind,android-ia/platform_external_libunwind,vtjnash/libunwind,atanasyan/libunwind-android,CyanogenMod/android_external_libunwind,yuyichao/libunwind,dagar/libunwind,libunwind/libunwind,lat/libunwind,vegard/libunwind,joyent/libunwind,DroidSim/platform_external_libunwind,unkadoug/libunwind,tkelman/libunwind,pathscale/libunwind,lat/libunwind,krytarowski/libunwind,tronical/libunwind,cloudius-systems/libunwind,dropbox/libunwind,martyone/libunwind,ehsan/libunwind,SyndicateRogue/libunwind,androidarmv6/android_external_libunwind,bo-on-software/libunwind,zeldin/platform_external_libunwind,rantala/libunwind,android-ia/platform_external_libunwind,djwatson/libunwind,wdv4758h/libunwind,olibc/libunwind,rantala/libunwind,0xlab/0xdroid-external_libunwind,evaautomation/libunwind,geekboxzone/lollipop_external_libunwind,libunwind/libunwind,tony/libunwind,cms-externals/libunwind,vtjnash/libunwind,dreal-deps/libunwind,unkadoug/libunwind,tronical/libunwind,fdoray/libunwind,rogwfu/libunwind,android-ia/platform_external_libunwind,mpercy/libunwind,cms-externals/libunwind,martyone/libunwind,olibc/libunwind,tronical/libunwind,zeldin/platform_external_libunwind,dreal-deps/libunwind,frida/libunwind,project-zerus/libunwind,zliu2014/libunwind-tilegx,geekboxzone/mmallow_external_libunwind,project-zerus/libunwind,djwatson/libunwind,tkelman/libunwind,project-zerus/libunwind,lat/libunwind,tony/libunwind,joyent/libunwind,DroidSim/platform_external_libunwind,krytarowski/libunwind,Chilledheart/libunwind,androidarmv6/android_external_libunwind