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
(transplanted from e94f4ffddd1d07b3841160db71694cd19fda6b03)
1.1 --- a/scripts/crosstool-NG.sh.in Sat Dec 19 13:08:34 2009 +0100
1.2 +++ b/scripts/crosstool-NG.sh.in Sat Dec 19 12:44:21 2009 +0100
1.3 @@ -134,6 +134,9 @@
1.4 # then rescan the options file now:
1.5 . .config
1.6
1.7 +# Sanity check some directories
1.8 +CT_TestAndAbort "'CT_PREFIX_DIR' is not set: where should I install?" -z "${CT_PREFIX_DIR}"
1.9 +
1.10 # Second kludge: merge user-supplied target CFLAGS with architecture-provided
1.11 # target CFLAGS. Do the same for LDFLAGS in case it happens in the future.
1.12 # Put user-supplied flags at the end, so that they take precedence.