use crosstool-ng

docker/arm-unknown-linux-gnueabihf/Dockerfile

@@ -9,6 +9,10 @@ RUN apt-get update && \
     make \
     pkg-config
 
+COPY crosstool-ng.sh /
+RUN bash /crosstool-ng.sh
+ENV PATH=$PATH:/x-tools/arm-unknown-linux-gnueabi/bin
+
 COPY xargo.sh /
 RUN bash /xargo.sh
 

docker/crosstool-ng.sh

@@ -0,0 +1,20 @@
+# Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+# file at the top-level directory of this distribution and at
+# http://rust-lang.org/COPYRIGHT.
+#
+# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+set -ex
+
+url="http://crosstool-ng.org/download/crosstool-ng/crosstool-ng-1.22.0.tar.bz2"
+curl -f $url | tar xjf -
+cd crosstool-ng
+./configure --prefix=/usr/local
+make -j$(nproc)
+make install
+cd ..
+rm -rf crosstool-ng