extract out a variable for ARDUINO_BUILDER_TOOLS_PATH to make it easier to

get up and running on arch

bin/kaleidoscope-builder

@@ -405,7 +405,7 @@ do_compile () {
 	      -hardware "${ARDUINO_PATH}/hardware" \
 	      -hardware "${BOARD_HARDWARE_PATH}" \
 	      ${ARDUINO_TOOLS_FLAG:+"${ARDUINO_TOOLS_FLAG}"} ${ARDUINO_TOOLS_PARAM:+"${ARDUINO_TOOLS_PARAM}"} \
-	      -tools "${ARDUINO_PATH}/tools-builder" \
+	      -tools "${ARDUINO_BUILDER_TOOLS_PATH}" \
 	      -fqbn "${FQBN}" \
         -libraries "." \
         -libraries "${KALEIDOSCOPE_DIR}" \

etc/kaleidoscope-builder.conf

@@ -69,7 +69,7 @@ dump_arduino_prefs() {
 		-hardware "${ARDUINO_PATH}/hardware" \
 		-hardware "${BOARD_HARDWARE_PATH}" \
 		${ARDUINO_TOOLS_FLAG:+"${ARDUINO_TOOLS_FLAG}"} ${ARDUINO_TOOLS_PARAM:+"${ARDUINO_TOOLS_PARAM}"} \
-		-tools "${ARDUINO_PATH}/tools-builder" \
+		-tools "${ARDUINO_BUILDER_TOOLS_PATH}" \
 		-fqbn "${FQBN}" \
 	 	-build-path "${ARDUINO_PATH}" \
    		-dump-prefs  "${SKETCH_DIR}/${SKETCH}.ino" )
@@ -224,6 +224,7 @@ fi
 : "${ARDUINO_PACKAGE_PATH:=${HOME}/.arduino15/packages}"
 
 : "${ARDUINO_BUILDER:=${ARDUINO_PATH}/arduino-builder}"
+: "${ARDUINO_BUILDER_TOOLS_PATH}:=${ARDUINO_PATH}/tools-builder"
 ARDUINO_IDE_VERSION="10607"
 
 ######