如何添加一个调试选项Makefile文件 [英] How do I add a debug option to Makefile

问题描述

我有以下简单的makefile，我用编译C程序：

I've got the below simple Makefile which I use for compiling a C program:

all:
    gcc -Wall -o myfile myfile.c lol_dht22/dht22.c lol_dht22/locking.c -lwiringPi -lcurl -lm

我想在调试选项添加这样我就可以-DDEBUG编译，所以如果我跑

I want to add in a debug option so I can compile with -DDEBUG, so if I run

make

它编译正常。如果我跑

it compiles as normal. and if I run

make debug

它与调试标志compliles。

it compliles with the debug flag.

我已经通过一些教程读取，但似乎是越来越糊涂了。

I have read through a few tutorial but seems to be getting more and more confused.

推荐答案

下面是有你正在寻找这两个选项的示例生成文件。

Here's an example makefile that has the two options you are looking for.

all:
    gcc -Wall -o myfile myfile.c lol_dht22/dht22.c lol_dht22/locking.c -lwiringPi -lcurl -lm
debug:
    gcc -DDEBUG -Wall -o myfile myfile.c lol_dht22/dht22.c lol_dht22/locking.c -lwiringPi -lcurl -lm

您只需要添加一个调试选项，这在类似的方式做你已经宣布全部选项。

You just needed to add a debug option, which is done in similar fashion to the 'all' option you had already declared.

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