[Buildroot] [PATCH v4 1/1] package/libssh2: Add selectable crypto libraries

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

Peter, All,

On 2017-11-05 09:01 +0100, Peter Korsgaard spake thusly:
> >>>>> "Arnout" == Arnout Vandecappelle <arnout@mind.be> writes:
>  > On 01-11-17 17:22, Sam Voss wrote:
[--SNIP--]
> >> +++ b/package/libssh2/Config.in
>  >> @@ -1,6 +1,5 @@
>  >> config BR2_PACKAGE_LIBSSH2
>  >> bool "libssh2"
>  >> -	select BR2_PACKAGE_OPENSSL if !(BR2_PACKAGE_MBEDTLS || BR2_PACKAGE_LIBGCRYPT)
>  >> help
>  >> libssh2 is a client-side C library implementing the SSH2
>  >> protocol as defined by Internet Drafts: SECSH-TRANS(22),
>  >> @@ -8,3 +7,26 @@ config BR2_PACKAGE_LIBSSH2
>  >> SECSH-FILEXFER(06)*, SECSH-DHGEX(04), and SECSH-NUMBERS(10)
>  >> 
>  >> http://www.libssh2.org/
>  >> +
>  >> +if BR2_PACKAGE_LIBSSH2
>  >> +
>  >> +choice
>  >> +	prompt "Crypto Backend"
>  >> +	help
>  >> +	  Select crypto library to be used in libssh2.
>  >> +
>  >> +config BR2_PACKAGE_LIBSSH2_MBEDTLS
>  >> +	bool "mbedtls"
>  >> +	select BR2_PACKAGE_MBEDTLS
> 
>  >  Note that this changes the defaults we had previously. If openssl was already
>  > selected and you select libssh2, then openssl would be used as a backend. Now,
>  > the default is mbedtls, so if you don't take any action, it will be mbedtls.
> 
>  >  This does affect people updating Buildroot, so it needs to be mentioned in CHANGES.
> 
> Why don't we just keep the old logic instead? E.G. leave the select
> openssl if !(mbedtls || libgcrypt) and then change the selects to
> depends on in the choice:
> 
> choice
> 
> config BR2_PACKAGE_LIBSSH2_MBEDTLS
>        bool "mbedtls"
>        depends on BR2_PACKAGE_MBEDTLS
> 
> ...
> 
> Doesn't that give us the best of both worlds? Same behaviour as before
> by default and still the option to explicitly chose when multiple
> backends are available?

That's what Sam did in the initial iterations of his patchset, but
Arnout and Thomas (IIRC) both requested he replaces that with a select
instead.

Regards,
Yann E. MORIN.

> -- 
> Bye, Peter Korsgaard
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

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