From eb71077fca1bb60bef1e8d11acacc9c4668124d4 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Oct 31 2015 18:09:54 +0000
Subject: build system: perform the host-targeting toolchain tests (host.tag)

as part of configure.

---

diff --git a/configure b/configure
index e1651d0..73585fa 100755
--- a/configure
+++ b/configure
@@ -297,6 +297,16 @@ config_copy()
 }
 
 
+config_host()
+{
+	make host.tag && return 0
+
+	error_msg "configure was able to generate a Makefile for the selected host,"
+	error_msg "however the host-targeting toolchain was found to be missing"
+	error_msg "at least one of the required headers or features."
+	exit 2
+}
+
 
 # one: init
 init_vars
@@ -379,6 +389,7 @@ cross_defaults
 
 # four: config
 config_copy
+config_host
 
 
 # all done