(pkg_extra): Set to .2. (LIBCRTS): For GCC, set it to the libgcc file-name.  Substitute it.
(pkg_extra): Set to .2.
(LIBCRTS): For GCC, set it to the libgcc file-name.  Substitute it.

(Logical change 1.280)

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