Revert "Use more convenience libraries"
Revert "Use more convenience libraries"

Breaks make check on both x86 (32 and 64 bit)

This reverts commit af88cab09f4fb0cea75891083eee17d6d0614304.

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