Also set CT_DEBUGROOT_DIR for non sysroot-ed toolchains.
In the non-sysroot-ed case, the debuf-root directory would not be set;
debug tools would have been installed God-only-knows-where...
Spotted by Bart van der Meulen <bartvdrmeulen@gmail.com>.
1 source config/global.in
2 source config/target.in
3 source config/toolchain.in
4 source config/kernel.in
5 source config/companion_libs.in
6 source config/binutils.in
10 source config/debug.in