ifneq (, $(filter buildtest, $(MAKECMDGOALS)))
  ifeq (, $(strip $(NPROC)))
    # Linux (utility program)
    NPROC := $(shell nproc 2>/dev/null)

    ifeq (, $(strip $(NPROC)))
      # Linux (generic)
      NPROC := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
    endif
    ifeq (, $(strip $(NPROC)))
      # BSD (at least FreeBSD and Mac OSX)
      NPROC := $(shell sysctl -n hw.ncpu 2>/dev/null)
    endif
    ifeq (, $(strip $(NPROC)))
      # Fallback
      NPROC := 1
    endif

    NPROC := $(shell echo $$(($(NPROC) + 1)))
  endif
endif

buildtest:
	@if [ -z "$${JENKINS_URL}" ] && tput colors 2>&1 > /dev/null; then \
		GREEN='\033[1;32m'; RED='\033[1;31m'; RESET='\033[0m'; \
		ECHO='/bin/echo -e'; \
	else \
		GREEN=''; RED=''; RESET=''; \
		ECHO='/bin/echo'; \
	fi; \
	\
	if [ -z "$(BOARD_WHITELIST)" ]; then \
		BOARDS=$$(find $(RIOTBOARD) -mindepth 1 -maxdepth 1 -type d \! -name \*-common -printf '%f\n' ); \
	else \
		BOARDS="$(BOARD_WHITELIST)"; \
	fi; \
	\
	for BOARD in $(BOARD_BLACKLIST); do \
		echo "Ignoring $${BOARD} (blacklisted)"; \
		BOARDS=$$(echo \ $${BOARDS}\  | sed -e 's/ '$${BOARD}' / /'); \
	done; \
	\
	rm -rf "$$BINDIRBASE"; \
	for BOARD in $${BOARDS}; do \
		RIOTNOLINK=$$(case ' $(BOARD_INSUFFICIENT_RAM) ' in *" $${BOARD} "*) echo 1; esac); \
		$${ECHO} -n "Building for $${BOARD} "; \
		[ -n "$${RIOTNOLINK}" ] && $${ECHO} -n "(no linking) "; \
		$${ECHO} -n ".. "; \
		LOG=$$(env -i \
			HOME=$${HOME} \
			PATH=$${PATH} \
			BOARD=$${BOARD} \
			RIOTBASE=$${RIOTBASE} \
			RIOTBOARD=$${RIOTBOARD} \
			RIOTCPU=$${RIOTCPU} \
			BINDIRBASE=$${BINDIRBASE} \
			RIOTNOLINK=$${RIOTNOLINK} \
			$(MAKE) -j$(NPROC) 2>&1 >/dev/null) ; \
		if [ "$${?}" = "0" ]; then \
			$${ECHO} "$${GREEN}success$${RESET}"; \
		else \
			$${ECHO} "$${RED}failed$${RESET}"; \
			echo "$${LOG}" | grep -v -E '^make(\[[[:digit:]]])?:'; \
			BUILDTESTFAILED=1; \
		fi; \
	done; \
	if [ "$${BUILDTESTFAILED}" = "1" ]; then \
		exit 1; \
	fi

objsize:
	@case "${SORTROW}" in \
		text) SORTROW=1 ;; \
		data) SORTROW=2 ;; \
		bss) SORTROW=3 ;; \
		dec) SORTROW=4 ;; \
		"") SORTROW=4 ;; \
		*) echo "Usage: $(MAKE) objsize SORTROW=[text|data|bss|dec]" ; return ;; \
	esac; \
	echo '   text\t   data\t    bss\t    dec\t    hex\tfilename'; \
	$(SIZE) -dB $(BASELIBS) | \
		tail -n+2 | \
		sed -e 's#$(BINDIR)##' | \
		sort -rnk$${SORTROW}

buildsize:
	@$(SIZE) -dB $(BINDIR)$(APPLICATION).elf

buildsizes: SHELL=bash
buildsizes:
	@if [[ -z "$(BOARD_WHITELIST)" ]]; then \
		BOARDS=$$(find $(RIOTBOARD) -mindepth 1 -maxdepth 1 -type d \! -name \*-common -printf '%f\n' ); \
	else \
		BOARDS="$(BOARD_WHITELIST)"; \
	fi; \
	for BOARD in $(BOARD_BLACKLIST); do \
		BOARDS=$$(sed -e "s/ $${BOARD} / /" <<< " $${BOARDS} "); \
	done; \
	\
	echo -e "   text\t   data\t    bss\t    dec\tboard"; \
	for BOARD in $${BOARDS}; do \
		echo "$$(env -i \
			HOME=$${HOME} \
			PATH=$${PATH} \
			BOARD=$${BOARD} \
			RIOTBASE=$${RIOTBASE} \
			RIOTBOARD=$${RIOTBOARD} \
			RIOTCPU=$${RIOTCPU} \
			BINDIRBASE=$${BINDIRBASE} \
			$(MAKE) buildsize 2>/dev/null | tail -n-1 | cut -f-4)" "$${BOARD}"; \
	done;

buildsizes-diff: SHELL=bash
buildsizes-diff:
	@if [[ -z "$(BOARD_WHITELIST)" ]]; then \
		BOARDS=$$(find $(RIOTBOARD) -mindepth 1 -maxdepth 1 -type d \! -name \*-common -printf '%f\n' ); \
	else \
		BOARDS="$(BOARD_WHITELIST)"; \
	fi; \
	for BOARD in $(BOARD_BLACKLIST); do \
		BOARDS=$$(sed -e "s/ $${BOARD} / /" <<< " $${BOARDS} "); \
	done; \
	\
	GREEN='\033[1;32m'; RED='\033[1;31m'; RESET='\033[0m'; \
	\
	echo -e "text\tdata\tbss\tdec\tBOARD/BINDIRBASE\n"; \
	for BOARD in $$(tr ' ' '\n' <<< $${BOARDS} | sort); do \
		for BINDIRBASE in $${OLDBIN} $${NEWBIN}; do \
			env -i \
				HOME=$${HOME} \
				PATH=$${PATH} \
				BOARD=$${BOARD} \
				RIOTBASE=$${RIOTBASE} \
				RIOTBOARD=$${RIOTBOARD} \
				RIOTCPU=$${RIOTCPU} \
				BINDIRBASE=$${BINDIRBASE} \
				$(MAKE) buildsize 2>/dev/null | tail -n-1 | cut -f-4; \
		done | \
		while read -a OLD && read -a NEW; do \
			for I in 0 1 2 3; do \
				if [[ -n "$${NEW[I]}" && -n "$${OLD[I]}" ]]; then \
					DIFF=$$(($${NEW[I]} - $${OLD[I]})); \
					if [[ "$${DIFF}" -gt 0 ]]; then echo -ne "$${RED}"; fi; \
					if [[ "$${DIFF}" -lt 0 ]]; then echo -ne "$${GREEN}"; fi; \
				else \
					DIFF="$${RED}ERR"; \
				fi; \
				echo -ne "$${DIFF}\t$${RESET}"; \
			done; \
			echo "$${BOARD}"; \
			for I in 0 1 2 3; do echo -ne "$${OLD[I]-$${RED}ERR$${RESET}}\t"; done; echo -e "$${OLDBIN}"; \
			for I in 0 1 2 3; do echo -ne "$${NEW[I]-$${RED}ERR$${RESET}}\t"; done; echo -e "$${NEWBIN}\n"; \
		done; \
	done;

buildinfo:
	@echo 'PROJECT: $(PROJECT)'
	@echo 'BOARD:   $(BOARD)'
	@echo 'CPU:     $(CPU)'
	@echo 'MCU:     $(MCU)'
	@echo ''
	@echo 'RIOTBASE:  $(RIOTBASE)'
	@echo 'RIOTBOARD: $(RIOTBOARD)'
	@echo 'RIOTCPU:   $(RIOTCPU)'
	@echo ''
	@echo 'DEFAULT_MODULE: $(sort $(filter-out $(DISABLE_MODULE), $(DEFAULT_MODULE)))'
	@echo 'DISABLE_MODULE: $(sort $(DISABLE_MODULE))'
	@echo 'USEMODULE:      $(sort $(filter-out $(DEFAULT_MODULE), $(USEMODULE)))'
	@echo ''
	@echo 'ELFFILE: $(ELFFILE)'
	@echo 'HEXFILE: $(HEXFILE)'
	@echo ''
	@echo 'CC: $(CC)'
	@echo -e 'CFLAGSS:$(patsubst %, \n\t%, $(CFLAGS))'
	@echo ''
	@echo 'LINK: $(LINK)'
	@echo -e 'LINKFLAGS:$(patsubst %, \n\t%, $(LINKFLAGS))'
	@echo ''
	@echo 'OBJCOPY: $(OBJCOPY)'
	@echo 'OFLAGS:  $(OFLAGS)'
	@echo ''
	@echo 'FLASHER: $(FLASHER)'
	@echo 'FFLAGS:  $(FFLAGS)'
	@echo ''
	@echo 'TERMPROG: $(TERMPROG)'
	@echo 'PORT:     $(PORT)'
	@echo ''
	@echo 'DEBUGGER:       $(DEBUGGER)'
	@echo 'DEBUGGER_FLAGS: $(DEBUGGER_FLAGS)'
	@echo ''
	@echo -e 'MAKEFILE_LIST:$(patsubst %, \n\t%, $(abspath $(MAKEFILE_LIST)))'