scripts: check for, and warn about an unset CT_PREFIX_DIR
The user shall provide a directory to install the toolchain into.
If he/she does not, this is an error, and shall be detected properly,
rather than relying on failure down the road.
Thanks to "Pedro I. Sanchez" <psanchez@colcan.ca> for pointing out
the issue:
http://sourceware.org/ml/crossgcc/2009-12/msg00011.html
3 canonicalizedname=$(readlink -nm "${0}")
4 dirname="$(dirname "${canonicalizedname}")"
5 basename="$(basename "${canonicalizedname}")"
7 ld_lib_path="$(dirname "${dirname}")/lib"
9 case ":${LD_LIBRARY_PATH}:" in
10 *":${ld_lib_path}:"*) ;;
11 *) LD_LIBRARY_PATH="${ld_lib_path}${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}";;
14 export LD_LIBRARY_PATH
15 exec "${dirname}/.${basename}" "$@"