toolchain integration: ensure accuracy of slibtool's --dumpmachine output.

1 files changed, 34 insertions, 0 deletions

diff --git a/project/config/cfgfini.sh b/project/config/cfgfini.sh
new file mode 100644
index 0000000..fb8bd05
--- /dev/null
+++ b/project/config/cfgfini.sh
@@ -0,0 +1,34 @@
+# cfgfini.sh: require slibtool's --dumpmachine output to be
+#             both accurate and complete also during the
+#             toolchain's initial bootstrapping phase.
+# invoked from within the project-agnostic configure script.
+
+# this file is covered by COPYING.SLIBTOOL.
+
+slibtool_cfgfini_error_msg()
+{
+	printf '%s\n' "$@" >&2
+	printf '%s\n' "$@" >&3
+}
+
+slibtool_cfgfini()
+{
+	if [ "${mb_cchost_set:-}" = 'yes' ]; then
+		return 0;
+
+	elif [ -n "$ccenv_host_dumpmachine_switch" ]; then
+		return 0;
+	fi
+
+	slibtool_cfgfini_error_msg
+	slibtool_cfgfini_error_msg "$mb_package: the host compiler, \`$ccenv_host_cc\`, does not provide a -dumpmachine switch."
+	slibtool_cfgfini_error_msg "$mb_package: please specify the host manually either by passing the --cchost argument to"
+	slibtool_cfgfini_error_msg "             $mb_package's configure script, or by setting the CCHOST environment variable."
+	slibtool_cfgfini_error_msg "$mb_package: this requirement aims to ensure a complete and accurate \`slibtool --dumpmachine\`"
+	slibtool_cfgfini_error_msg "             output also during the toolchain's initial bootstrapping phase."
+	slibtool_cfgfini_error_msg
+
+	config_failure
+}
+
+slibtool_cfgfini