What does the "-DPACKAGE" means?

[loïc tourlonias]

Hi

On Wed, Jul 11, 2018 at 10:08 AM, Dengke Du <dengke.du at windriver.com> wrote:
>
> Hi all
>
> What does the "-DPACKAGE" means?
> ```````````````````````````````````````````````````````````
> $(OUTPUT)test-libbfd.bin:
>     $(BUILD) -DPACKAGE='"perf"' -lbfd -lz -liberty -ldl
> ```````````````````````````````````````````````````````````
> In this link:
> https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/tree/tools/build/feature/Makefile?id=fb982666e380c1632a74495b68b3c33a66e76430#n189

If you look at the manpage of gcc, the -D option is used to define
macro. It creates new #define during build.

HTH
Loïc
>
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