TOOL » LINUX

Makefile

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Reference:web.mit.edu
Man page:make

Syntax ​

Declare Phony targets if you just want to declare some commands.

makefile
.PHONY: target
my_var := hello

# Shell commands
bold := $(shell tput bold)
reset := $(shell tput sgr0)

target: dependencies
	command

Key points:

  • Before command a TAB character is required
  • There are two valid syntaxes for using variables: $(my_var) and ${my_var}
  • The same syntax is applied to environment variables

Example ​

makefile
.PHONY: all prepare build
my_var := hello

all: prepare build

prepare:
	@echo $(CURDIR)
	-command_that_may_fail
	prepare_command
	echo $(my_var)

build:
	build_command