[Buildroot] [PATCH v2] nmap: add option to build/install "ncat"

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, Carlos, Arnout, All,

On 2017-10-10 10:12 +0200, Thomas Petazzoni spake thusly:
> On Tue, 10 Oct 2017 00:08:38 +0200, Arnout Vandecappelle wrote:
> > 5. BR2_PACKAGE_NMAP builds nothing, two new options BR2_PACKAGE_NMAP_NMAP and
> > BR2_PACKAGE_NMAP_NCAT build nmap resp. ncat. To avoid building nothing, you
> > could try something like
> > 
> > config BR2_PACKAGE_NMAP
> > 	select BR2_PACKAGE_NMAP_NCAT if !BR2_PACKAGE_NMAP_NMAP
> > 
> > if BR2_PACKAGE_NMAP
> > config BR2_PACKAGE_NMAP_NMAP
> > 	default y
> > 
> > config BR2_PACKAGE_NMAP_NCAT
> > endif
> > 
> > but that might give a circular dependency.
> 
> This option has my preference. And it doesn't have a circular
> dependency, we use this construct in several places already.
> 
> One example:
> 
> config BR2_PACKAGE_ANDROID_TOOLS
>         bool "android-tools"
>         select BR2_PACKAGE_ANDROID_TOOLS_ADBD if \
>               !BR2_PACKAGE_ANDROID_TOOLS_FASTBOOT && \
>               !BR2_PACKAGE_ANDROID_TOOLS_ADB
> 
> if BR2_PACKAGE_ANDROID_TOOLS
> 
> config BR2_PACKAGE_ANDROID_TOOLS_FASTBOOT
>         bool "fastboot"
> 
> config BR2_PACKAGE_ANDROID_TOOLS_ADB
>         bool "adb"
> 
> config BR2_PACKAGE_ANDROID_TOOLS_ADBD
>         bool "adbd"
> 
> endif
> 
> However, perhaps we should invert the select:
> 
> 	select BR2_PACKAGE_NMAP_NMAP if !BR2_PACKAGE_NMAP_NCAT
> 
> and drop the "default y" in BR2_PACKAGE_NMAP_NMAP. This way, we still
> have "nmap" enabled by default, and now allow the option to select ncat.

Since Arnout pulled me in the discussion, here is my stake at it: I
second Thomas' position on this. ;-)

Regards,
Yann E. MORIN.

> Best regards,
> 
> Thomas
> -- 
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux and Kernel engineering
> http://free-electrons.com

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