# This is a script to be run as part of make.sh. The only time you'd
# want to run it by itself is if you're trying to cross-compile the
# system or if you're doing some kind of troubleshooting.
# This software is part of the SBCL system. See the README file for
# more information.
# This software is derived from the CMU CL system, which was
# written at Carnegie Mellon University and released into the
# public domain. The software is in the public domain and is
# provided with absolutely no warranty. See the COPYING and CREDITS
# files for more information.
echo //entering make-host-2.sh
export LANG LC_ALL
# In some cases, a debugging build of the system will creates a core
# file output/after-xc.core in the next step. In cases where it
# doesn't, it's confusing and basically useless to have any old copies
# lying around, so delete:
rm -f output/after-xc.core
# In a fresh host Lisp invocation, load and run the cross-compiler to
# create the target object files describing the target SBCL.
# (There are at least three advantages to running the cross-compiler in a
# fresh host Lisp invocation instead of just using the same Lisp invocation
# that we used to compile it:
# (1) It reduces the chance that the cross-compilation process
# inadvertently comes to depend on some weird compile-time
# side effect.
# (2) It reduces peak memory demand (because definitions wrapped in
# (EVAL-WHEN (:COMPILE-TOPLEVEL :EXECUTE) ..) aren't defined
# in the fresh image).
# (3) It makes it easier to jump in and retry a step when tweaking
# and experimenting with the bootstrap procedure.
# Admittedly, these don't seem to be enormously important advantages, but
# the only disadvantage seems to be the extra time required to reload
# the fasl files into the new host Lisp, and that doesn't seem to be
# an enormously important disadvantage, either.)
echo //running cross-compiler to create target object files
$SBCL_XC_HOST < make-host-2.lisp
# Run GENESIS (again) in order to create cold-sbcl.core. (The first
# time was before we ran the cross-compiler, in order to create the
# header file which was needed in order to run gcc on the runtime