From 190fdf431e65f0276ce3c8c566248582f7c95abe Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 24 Jan 2017 14:20:27 +0000
Subject: [PATCH] Honour dpkg-architecture's DEB_HOST_GNU_TYPE, to fix
 cross-building.

---
 debian/changelog | 1 +
 debian/rules     | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/debian/changelog b/debian/changelog
index 217cc5a..706198f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -8,6 +8,7 @@ chiark-tcl (1.1.4~~iwj) UNRELEASED; urgency=low
     this change fixes the FTBFS on Debian hurd-* and kfreebsd-*.
   * Update build-dependencies to permit tcl8.6.  Closes:#818475.
   * Replace ad-hocery with use of offsetof/typeof.  Closes:#812718.
+  * Honour dpkg-architecture's DEB_HOST_GNU_TYPE, to fix cross-building.
 
  -- Ian Jackson <ijackson@chiark.greenend.org.uk>  Tue, 24 Jan 2017 13:14:06 +0000
 
diff --git a/debian/rules b/debian/rules
index faa763a..f5d4a2a 100755
--- a/debian/rules
+++ b/debian/rules
@@ -26,6 +26,15 @@ docdir=usr/share/doc/$(docpackage)
 tclh:=$(firstword $(wildcard /usr/include/tcl8.*/tcl.h))
 tclversion:=$(patsubst /usr/include/tcl%/tcl.h,%,$(tclh))
 
+garch := $(shell dpkg-architecture -q DEB_HOST_GNU_TYPE)
+ifneq ($(garch),)
+
+ifeq ($(origin CC),default)
+export CC=$(garch)-gcc
+endif
+
+endif # $garch
+
 define checkdir
 	test -f hbytes/hbytes.tct
 endef
-- 
2.30.2