Fix warnings on 32 bit x86
Fix warnings on 32 bit x86

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