make:***没有规则来创建目标"gcc"，这是"all"所需要的.停止 [英] make: *** No rule to make target `gcc', needed by `all'. Stop

问题描述

我正在通过一个pgm来创建一个make文件.

I am going through an eg pgm to create a make file.

http://mrbook.org/tutorials/make/

我的文件夹eg_make_creation包含以下文件，

My folder eg_make_creation contains the following files,

desktop:~/eg_make_creation$ ls
factorial.c  functions.h  hello  hello.c  main.c  Makefile

Makefile

all:gcc -c main.c hello.c factorial.c -o hello

错误:

desktop:~/eg_make_creation$ make all
make: *** No rule to make target `gcc', needed by `all'.  Stop.

请帮助我了解如何编译该程序.

Please help me understand to compile this program.

推荐答案

makefile的语法非常严格:

The syntax of makefiles is very strict:

target:dependencies
        build_rules
# ^ this space here _needs_ to be a tab.

您写的内容使all依赖于无效的目标gcc，-c，....

What you wrote makes all depend on gcc, -c, ... which are not valid targets.

您需要的是类似的东西

all: hello

hello: factorial.c  functions.h hello.c  main.c 
         gcc -o hello factorial.c hello.c  main.c 

(如果要一步一步进行编译和链接，请不要使用-c开关).

(If you want to compile and link in one step, don't use the -c switch).

这篇关于make:***没有规则来创建目标"gcc"，这是"all"所需要的.停止的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！