Improve debug-frame configure option default
Improve debug-frame configure option default

Ensure that --enable-debug-frame is set automatically when building
libunwind for an ARM target.  Other targets continue to have
--disable-debug-frame as the default setting.

Signed-off-by: Zachary T Welch <ed31003884a63125fcccb7c6499cbee2f4d64832@codesourcery.com>

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