# HG changeset patch
# User "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
# Date 1261223061 -3600
# Node ID 5360c810222d471db619da4ed765fccdf487b310
# Parent  bf0dca8650a4632ad8f85976dd33039f435ef01c
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)

diff -r bf0dca8650a4 -r 5360c810222d scripts/crosstool-NG.sh.in
--- a/scripts/crosstool-NG.sh.in	Sat Dec 19 13:08:34 2009 +0100
+++ b/scripts/crosstool-NG.sh.in	Sat Dec 19 12:44:21 2009 +0100
@@ -134,6 +134,9 @@
 # then rescan the options file now:
 . .config
 
+# Sanity check some directories
+CT_TestAndAbort "'CT_PREFIX_DIR' is not set: where should I install?" -z "${CT_PREFIX_DIR}"
+
 # Second kludge: merge user-supplied target CFLAGS with architecture-provided
 # target CFLAGS. Do the same for LDFLAGS in case it happens in the future.
 # Put user-supplied flags at the end, so that they take precedence.