[Buildroot] [PATCH 2/2] linux: only depend on host-lzop if needed

[Yann E. MORIN]

Thomas, All,

On 2014-01-28 23:14 +0100, Thomas Petazzoni spake thusly:
> On Sun, 26 Jan 2014 14:56:27 +0100, Yann E. MORIN wrote:
> 
> > +ifeq ($(call KCONFIG_GET_OPT,CONFIG_KERNEL_LZO,$(call qstrip,$(KERNEL_SOURCE_CONFIG))),y)
> > +LINUX_DEPENDENCIES += host-lzop
> > +endif
> 
> Do this works reliably? KERNEL_SOURCE_CONFIG typically points to a
> minimal defconfig file (say arch/arm/configs/mvebu_defconfig). So if
> CONFIG_KERNEL_LZO is the default choice for the kernel, it will not
> appear in the defconfig, and therefore the piece of code above will not
> realize that we need host-lzop, because the test is done before "make
> mvebu_defconfig" is executed and turns it back into a full
> configuration file.

I believe I've addresed your comments in the commit log itself:

    ---8<---
    Since LZO is not the default compression option in the kernel (and there
    is not sign that will change in the foreseeable future), it will always
    appear in a condif file, whether it is a complete config file or it is
    only a defconfig.
    ---8<---

Of course, re-reading myself now, I can now spot a typo:
    s/condif/config/

Regards,
Yann E. MORIN.

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