[cmake-developers] [PATCH] FindBoost: Add imported targets

[Ruslan Baratov]

On 16-Nov-15 21:01, rleigh at codelibre.net wrote:
> I have attached a patch to add imported targets to FindBoost, in the form
> of Boost::<component> (e.g. Boost::date_time) or Boost::Boost as a generic
> interface library for header-only components.
Since it's `Boost::date_time` I expect that it will be `Boost::boost` 
(lowercase).

On 16-Nov-15 21:39, Brad King wrote:
> On 11/16/2015 09:26 AM, Florent Castelli wrote:
>> But one there’s one thing that comes to mind. Some compiled libraries
>> have dependencies on other compiled libraries.
>> Don’t you think it would make sense to teach FindBoost about those
>> so we link everything properly?
>>
>> And also maybe add the native dependencies for some modules that
>> have one like maybe pthread or openssl.
>> Though, this might be hard to get right in a cross platform way.
> Please look at adding these.  The imported targets should come
> with all usage requirements as if they were provided by upstream
> Boost.  It may be tricky to get right on all platforms but if we
> do not do it then application code will have to do it instead.
>

One tricky part about it is that dependency can be optional. I.e. 
Boost::iostreams may or may not depends on ZLIB/BZip2. Such information 
is known only by build procedure. I.e. should be installed by b2 itself 
or by wrapped ExternalProject_Add instructions.

Ruslan