Populate buildProperties[constants.BUILD_PROPERTIES_FQBN] with proper fqbn

Author: facchinm

src/arduino.cc/builder/builder_utils/utils.go

@@ -476,6 +476,8 @@ func copyFileContents(src, dst string) (err error) {
 	return
 }
 
-func GetCoreArchivePath(fqbnToUnderscore string) string {
+func GetCoreArchivePath(fqbn string) string {
+	fqbnToUnderscore := strings.Replace(fqbn, ":", "_", -1)
+	fqbnToUnderscore = strings.Replace(fqbnToUnderscore, "=", "_", -1)
 	return os.TempDir() + "/core_" + fqbnToUnderscore + ".a"
 }

src/arduino.cc/builder/setup_build_properties.go

@@ -70,7 +70,7 @@ func (s *SetupBuildProperties) Run(ctx *types.Context) error {
 	buildProperties[constants.BUILD_PROPERTIES_RUNTIME_PLATFORM_PATH] = targetPlatform.Folder
 	buildProperties[constants.BUILD_PROPERTIES_RUNTIME_HARDWARE_PATH] = filepath.Join(targetPlatform.Folder, "..")
 	buildProperties[constants.BUILD_PROPERTIES_RUNTIME_IDE_VERSION] = ctx.ArduinoAPIVersion
-	buildProperties[constants.BUILD_PROPERTIES_FQBN] = strings.Replace(ctx.FQBN, ":", "_", -1)
+	buildProperties[constants.BUILD_PROPERTIES_FQBN] = ctx.FQBN
 	buildProperties[constants.IDE_VERSION] = ctx.ArduinoAPIVersion
 	buildProperties[constants.BUILD_PROPERTIES_RUNTIME_OS] = utils.PrettyOSName()