Add junit_output option to Makefile

Makefile

@@ -13,17 +13,18 @@
 
 LLVM_CONFIG ?= ## llvm-config command path to use
 
-release ?= ## Compile in release mode
-stats ?=   ## Enable statistics output
-threads ?= ## Maximum number of threads to use
-debug ?=   ## Add symbolic debug info
-verbose ?= ## Run specs in verbose mode
+release ?=      ## Compile in release mode
+stats ?=        ## Enable statistics output
+threads ?=      ## Maximum number of threads to use
+debug ?=        ## Add symbolic debug info
+verbose ?=      ## Run specs in verbose mode
+junit_output ?= ## Directory to output junit results
 
 O := .build
 SOURCES := $(shell find src -name '*.cr')
 SPEC_SOURCES := $(shell find spec -name '*.cr')
 FLAGS := $(if $(release),--release )$(if $(stats),--stats )$(if $(threads),--threads $(threads) )$(if $(debug),-d )
-VERBOSE := $(if $(verbose),-v )
+SPEC_FLAGS := $(if $(verbose),-v )$(if $(junit_output),--junit_output $(junit_output) )
 EXPORTS := $(if $(release),,CRYSTAL_CONFIG_PATH=`pwd`/src)
 SHELL = bash
 LLVM_CONFIG_FINDER := \
@@ -73,15 +74,15 @@ help: ## Show this help
 
 .PHONY: spec
 spec: $(O)/all_spec ## Run all specs
-	$(O)/all_spec $(VERBOSE)
+	$(O)/all_spec $(SPEC_FLAGS)
 
 .PHONY: std_spec
 std_spec: $(O)/std_spec ## Run standard library specs
-	$(O)/std_spec $(VERBOSE)
+	$(O)/std_spec $(SPEC_FLAGS)
 
 .PHONY: compiler_spec
 compiler_spec: $(O)/compiler_spec ## Run compiler specs
-	$(O)/compiler_spec $(VERBOSE)
+	$(O)/compiler_spec $(SPEC_FLAGS)
 
 .PHONY: doc
 doc: ## Generate standard library documentation