[Buildroot] Change CFLAGS for a certain package

[Buildroot] Change CFLAGS for a certain package

[mikmik]

I have a generic-package 'hello' contains hello.c and Makefile.
In the mk file I want to build HELLO_CONFIGURE_OPTS just as
TARGET_CONFIGURE_OPTS but change only CFLAGS to my desired CFLAGS for hello
(say just '-g').

Right now, I used sed on TARGET_CONFIGURE_OPTS and replaced CFLAGS. It
works.
But there isn't a more easy or intuitive way to replace some variables on
TARGET_CONFIGURE_OPTS?

Thanks in advance.




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[Buildroot] Change CFLAGS for a certain package

[Arnout Vandecappelle]

On 21-09-17 08:22, mikmik wrote:
> I have a generic-package 'hello' contains hello.c and Makefile.
> In the mk file I want to build HELLO_CONFIGURE_OPTS just as
> TARGET_CONFIGURE_OPTS but change only CFLAGS to my desired CFLAGS for hello
> (say just '-g').
> 
> Right now, I used sed on TARGET_CONFIGURE_OPTS and replaced CFLAGS. It
> works.
> But there isn't a more easy or intuitive way to replace some variables on
> TARGET_CONFIGURE_OPTS?

 For almost all options, you can just override them by specifying the additional
option later. For example, if CFLAGS contains "-g -g0" then you don't get
debugging info. So, you can always just append to cflags:

HELLO_CONFIGURE_OPTS += CFLAGS="$(TARGET_CFLAGS) -g"


 Regards,
 Arnout

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Arnout Vandecappelle                          arnout at mind be
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