kaleidoscope-builder: Allow overriding CXX, CC, AR, etc

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

bin/kaleidoscope-builder

@@ -379,6 +379,10 @@ compile () {
         fi
     fi
 
+    _CMD_CXX="${CXX:-${COMPILER_PREFIX}${CXX_COMPILER_BASENAME}${COMPILER_SUFFIX}}"
+    _CMD_CC="${CC:-${COMPILER_PREFIX}${C_COMPILER_BASENAME}${COMPILER_SUFFIX}}"
+    _CMD_AR="${AR:-${COMPILER_PREFIX}${AR_BASENAME}${COMPILER_SUFFIX}}"
+
     # SC2091: We do not care if quotes or backslashes are not respected.
     # SC2086: We want word splitting.
     # shellcheck disable=SC2086,SC2090
@@ -401,8 +405,10 @@ compile () {
 	      -built-in-libraries "${ARDUINO_PATH}/libraries" \
 	      -prefs "compiler.cpp.extra_flags=${ARDUINO_CFLAGS} ${LOCAL_CFLAGS}" \
 	      -prefs "compiler.path=${COMPILER_PATH}" \
-	      -prefs "compiler.c.cmd=${COMPILER_PREFIX}${C_COMPILER_BASENAME}" \
-	      -prefs "compiler.cpp.cmd=${COMPILER_PREFIX}${CXX_COMPILER_BASENAME}" \
+	      -prefs "compiler.c.cmd=${_CMD_CC}" \
+	      -prefs "compiler.cpp.cmd=${_CMD_CXX}" \
+        -prefs "compiler.ar.cmd=${_CMD_AR}" \
+        -prefs "compiler.c.elf.cmd=${_CMD_CXX}" \
 	      $CCACHE_ENABLE \
 	      -warnings all \
         ${ARDUINO_VERBOSE} \

etc/kaleidoscope-builder.conf

@@ -23,9 +23,10 @@ if [ "${ARCH}" = "virtual" ]; then
     # Set the compiler path for virtual builds
     #
     if [ -z "${COMPILER_PATH}" ]; then
-       COMPILER_PATH="/usr/bin"
-       COMPILER_PREFIX=""
+       COMPILER_PATH="/usr/bin/"
     fi
+
+    COMPILER_PREFIX=""
 else
    ARCH="avr"
 fi
@@ -150,6 +151,12 @@ if [ "${uname_S}" = "Darwin" ]; then
         fi
     }
 
+    if [ "${ARCH}" = "virtual" ]; then
+        COMPILER_PREFIX="x86_64-apple-darwin19-"
+        COMPILER_SUFFIX="-10"
+        AR_BASENAME="gcc-ar"
+    fi
+
 elif [ "${uname_S}" = "FreeBSD" ]; then
 
     find_device_port() {
@@ -168,6 +175,7 @@ elif [ "${uname_S}" = "FreeBSD" ]; then
     AVR_OBJDUMP="${AVR_OBJDUMP:-/usr/local/bin/avr-objdump}"
     AVRDUDE="${AVRDUDE:-/usr/local/bin/avrdude}"
     AVRDUDE_CONF="${AVRDUDE_CONF:-/usr/local/etc/avrdude.conf}"
+    ARDUINO_BUILDER="${ARDUINO_BUILDER:-/usr/local/bin/arduino-builder}"
 
     find_bootloader_ports() {
 	DIR=$(dirname "$0")
@@ -175,6 +183,10 @@ elif [ "${uname_S}" = "FreeBSD" ]; then
 	DEVICE_PORT_BOOTLOADER="$(perl ${DEVICE_PORT_PROBER})"
     }
 
+    if [ "${ARCH}" = "virtual" ]; then
+        COMPILER_PATH="${COMPILER_PATH:-/usr/local/bin/}"
+    fi
+
 elif [ "${uname_O}" = "Cygwin" ]; then
     # The Windows arduino-builder.exe doesn't understand being told to exec against Cygwin symlinks
     CCACHE_NOT_SUPPORTED=1
@@ -248,8 +260,12 @@ ARDUINO_IDE_VERSION="10607"
 # Allow the compiler path to be empty for virtual builds
 COMPILER_PATH="${COMPILER_PATH-${ARDUINO_TOOLS_PATH}/avr/bin/}"
 
+COMPILER_SUFFIX=""
+
 C_COMPILER_BASENAME=$(basename ${CC:-gcc})
 CXX_COMPILER_BASENAME=$(basename ${CXX:-g++})
+AR_BASENAME=$(basename ${AR:-ar})
+OBJCOPY_BASENAME=$(basename ${OBJCOPY:-objcopy})
 
 # Allow the compiler prefix to be empty for virtual builds
 COMPILER_PREFIX="${COMPILER_PREFIX-avr-}"