ifneq (, $(filter buildtest info-concurrency, $(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)))

    ifneq (, $(NPROC_MAX))
      NPROC := $(shell if [ ${NPROC} -gt $(NPROC_MAX) ]; then echo $(NPROC_MAX); else echo ${NPROC}; fi)
    endif
    ifneq (, $(NPROC_MIN))
      NPROC := $(shell if [ ${NPROC} -lt $(NPROC_MIN) ]; then echo $(NPROC_MIN); else echo ${NPROC}; fi)
    endif
  endif
endif

BOARDS ?= $(shell find $(RIOTBOARD)/* -maxdepth 0 -type d \! -name *-common -printf '%f ')
BOARDS := $(filter $(if $(BOARD_WHITELIST), $(BOARD_WHITELIST), %), $(BOARDS))
BOARDS := $(filter-out $(BOARD_BLACKLIST), $(BOARDS))

.PHONY: buildtest info-objsize info-buildsize info-buildsizes \
        info-buildsizes-diff info-build info-boards-supported

buildtest:
	@if [ -z "$${JENKINS_URL}" ] && tput colors 2>&1 > /dev/null; then \
		GREEN='\033[1;32m'; RED='\033[1;31m'; PURPLE='\033[1;35m'; RESET='\033[0m'; \
		ECHO='/bin/echo -e'; \
	else \
		GREEN=''; RED=''; PURPLE=''; RESET=''; \
		ECHO='/bin/echo'; \
	fi; \
	\
	BUILDTESTOK=true; \
	rm -rf "$$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) "; \
		for NTH_TRY in 1 2; do \
			$${ECHO} -n ".. "; \
			LOG=$$(env -i \
					HOME=$${HOME} \
					PATH=$${PATH} \
					BOARD=$${BOARD} \
					RIOTBASE=$${RIOTBASE} \
					RIOTBOARD=$${RIOTBOARD} \
					RIOTCPU=$${RIOTCPU} \
					BINDIRBASE=$${BINDIRBASE} \
					RIOTNOLINK=$${RIOTNOLINK} \
					RIOT_VERSION=$${RIOT_VERSION} \
					$(MAKE) -j$(NPROC) 2>&1 >/dev/null) ; \
			if [ "$${?}" = "0" ]; then \
				$${ECHO} "$${GREEN}success$${RESET}"; \
			elif [ -n "$${RIOT_DO_RETRY}" ] && $${BUILDTESTOK} && [ $${NTH_TRY} = 1 ]; then \
				$${ECHO} -n "$${PURPLE}retrying$${RESET} "; \
				continue; \
			else \
				$${ECHO} "$${RED}failed$${RESET}"; \
				echo "$${LOG}" | grep -v -E '^make(\[[[:digit:]]])?:'; \
				BUILDTESTOK=false; \
			fi; \
			break; \
		done; \
	done; \
	$${BUILDTESTOK}

info-objsize:
	@case "${SORTROW}" in \
		text) SORTROW=1 ;; \
		data) SORTROW=2 ;; \
		bss) SORTROW=3 ;; \
		dec) SORTROW=4 ;; \
		"") SORTROW=4 ;; \
		*) echo "Usage: $(MAKE) info-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}

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

info-buildsizes: SHELL=bash
info-buildsizes:
	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) info-buildsize 2>/dev/null | tail -n-1 | cut -f-4)" "$${BOARD}"; \
	done;

info-buildsizes-diff: SHELL=bash
info-buildsizes-diff:
	@GREEN='\033[1;32m'; RED='\033[1;31m'; RESET='\033[0m'; \
	\
	echo -e "text\tdata\tbss\tdec\tBOARD/BINDIRBASE\n"; \
	for BOARD in $(BOARDS); do \
		for BINDIRBASE in $${OLDBIN} $${NEWBIN}; do \
			env -i \
				HOME=$${HOME} \
				PATH=$${PATH} \
				BOARD=$${BOARD} \
				RIOTBASE=$${RIOTBASE} \
				RIOTBOARD=$${RIOTBOARD} \
				RIOTCPU=$${RIOTCPU} \
				BINDIRBASE=$${BINDIRBASE} \
				$(MAKE) info-buildsize 2>/dev/null | tail -n-1 | cut -f-4; \
		done | \
		while read -a OLD && read -a NEW; do \
			for I in 0 1 2 3; do \
				if [[ -n "$${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;

info-build:
	@echo 'APPLICATION: $(APPLICATION)'
	@echo ''
	@echo 'supported boards:'
	@$(foreach board,$(BOARDS),echo ' * $(board)';)
	@echo ''
	@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:      $(CC)'
	@echo -e 'CFLAGS:$(patsubst %, \n\t%, $(CFLAGS))'
	@echo ''
	@echo 'CXX:     $(CXX)'
	@echo -e 'CXXUWFLAGS:$(patsubst %, \n\t%, $(CXXUWFLAGS))'
	@echo -e 'CXXEXFLAGS:$(patsubst %, \n\t%, $(CXXEXFLAGS))'
	@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 'DOWNLOAD_TO_FILE:   $(DOWNLOAD_TO_FILE)'
	@echo 'DOWNLOAD_TO_STDOUT: $(DOWNLOAD_TO_STDOUT)'
	@echo 'UNZIP_HERE:         $(UNZIP_HERE)'
	@echo ''
	@echo 'DEBUGSERVER:       $(DEBUGSERVER)'
	@echo 'DEBUGSERVER_FLAGS: $(DEBUGSERVER_FLAGS)'
	@echo ''
	@echo 'RESET:       $(RESET)'
	@echo 'RESET_FLAGS: $(RESET_FLAGS)'
	@echo ''
	@echo -e 'MAKEFILE_LIST:$(patsubst %, \n\t%, $(abspath $(MAKEFILE_LIST)))'

info-boards-supported:
	@echo "$(BOARDS)"

info-concurrency:
	@echo "$(NPROC)"