allow additional cake params to be passed via env variables (#5371)

This allows for non-standard paths and the likes (helps a lot on OSX).

tools/commit-tests.sh

@@ -38,7 +38,7 @@ if [ "$(uname)" = "Darwin" ]; then
 else
     SCRIPT=$(readlink -f "$0")
 fi
-#export CMAKE_PREFIX_PATH=/opt/qt${QT_BASE}
+
 if [[ ! -z ${GCC_ARM} ]] ; then
   export PATH=${GCC_ARM}:$PATH
 fi
@@ -48,6 +48,10 @@ fi
 : ${COMMON_OPTIONS:="-DCMAKE_BUILD_TYPE=Debug -DTRACE_SIMPGMSPACE=NO -DVERBOSE_CMAKELISTS=YES -DCMAKE_RULE_MESSAGES=OFF -Wno-dev"}
 if (( $WERROR )); then COMMON_OPTIONS+=" -DWARNINGS_AS_ERRORS=YES"; fi
 
+: ${EXTRA_OPTIONS:="$EXTRA_OPTIONS"}
+
+COMMON_OPTIONS+=${EXTRA_OPTIONS}
+
 : ${TEST_OPTIONS:="--gtest_shuffle --gtest_repeat=5 --gtest_break_on_failure"}
 
 : ${FIRMARE_TARGET:="firmware-size"}