Makefile别名 [英] makefile aliases

问题描述

请在下面的生成文件中解释$ @ $ ^ $

Please explain $@ $^ $ in the makefile below

LIBS  = -lkernel32 -luser32 -lgdi32 -lopengl32
CFLAGS = -Wall

# (This should be the actual list of C files)
SRC=$(wildcard '*.c')

test: $(SRC)
    gcc -o $@ $^ $(CFLAGS) $(LIBS)

推荐答案

这是这两个符号的含义:

This is what these two symbols mean:

• $ @是目标，即test
• $ ^是规则的先决条件列表(在本例中为SRC=$(wildcard '*.c')中指定的扩展通配符列表)

• $@ is the target i.e. test
• $^ is the list of pre-requisites for the rule (which in this case is the expanded wild card list as specified in SRC=$(wildcard '*.c'))

自动GNU制作手册的变量页面.

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