cache_file_option="--cache-file=../${cache_file}" ;;
esac
-host_configargs="${cache_file_option} --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
+# Host dirs don't like to share a cache file either, horribly enough.
+# This seems to be due to autoconf 2.5x stupidity.
+host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
target_configargs=${baseargs}
target_configargs="--with-newlib ${target_configargs}"
fi
+# Different target subdirs use different values of certain variables
+# (notably CXX). Worse, multilibs use *lots* of different values.
+# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
+# it doesn't automatically accept command-line overrides of them.
+# This means it's not safe for target subdirs to share a cache file,
+# which is disgusting, but there you have it. Hopefully this can be
+# fixed in future. It's still worthwhile to use a cache file for each
+# directory. I think.
+
# Pass the appropriate --host, --build, and --cache-file arguments.
-target_configargs="--cache-file=../config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
+target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
# provide a proper gxx_include_dir.
# Note, if you change the default, make sure to fix both here and in