OS X: build flags to fix compilation with appleclang and a change to the test for a tr error message

Author: R. van Elst

.github/workflows/build-test-and-artifact.yml

@@ -167,12 +167,15 @@ jobs:
       run: cmake -E make_directory ${{runner.workspace}}/build
 
     - name: Install dependencies
-      run: brew install sdl2 libpcap libx11
+      run: brew install coreutils libpcap netcat # sdl2 libx11
+
+    - name: gnu tr
+      run: sudo mv /usr/local/opt/coreutils/libexec/gnubin/tr /usr/bin/tr
 
     - name: Configure CMake
       shell: bash
       working-directory: ${{runner.workspace}}/build
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-Wall"
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-Wall -Wc++11-extensions -Wc++11-long-long -Wc++11-extra-semi -std=c++11 -stdlib=libc++ -I/usr/local/opt/libpcap/include"
 
     - name: Build
       working-directory: ${{runner.workspace}}/build

test/rom/test.sh

@@ -1,4 +1,7 @@
 #!/bin/bash
+export LC_CTYPE=C
+export LANG=C
+export LC_ALL=C
 
 # Download the firmware
 wget 'http://raymii.org/s/inc/downloads/es40-srmon/cl67srmrom.exe'