dfu-programmer \
dfu-util \
gcc \
- gcc-arm-none-eabi \
gcc-avr \
git \
libnewlib-arm-none-eabi \
zip \
&& rm -rf /var/lib/apt/lists/*
-ENV KEYBOARD=ergodox_ez
-ENV KEYMAP=default
+# upgrade gcc-arm-none-eabi from the default 5.4.1 to 6.3.1 due to ARM runtime issues
+RUN wget -q https://developer.arm.com/-/media/Files/downloads/gnu-rm/6-2017q2/gcc-arm-none-eabi-6-2017-q2-update-linux.tar.bz2 -O - | \
+ tar xj --strip-components=1 -C /
VOLUME /qmk_firmware
WORKDIR /qmk_firmware
COPY . .
-CMD make $KEYBOARD:$KEYMAP
+CMD make all:default