Boost_USE_STATIC_LIBS deviates from FindBoost.cmake behaviour

[jpfeuffer]

Boost_USE_STATIC_LIBS deviates from FindBoost.cmake behaviour

[jpfeuffer]

Sorry, I just saw that I confused OFF with not set, or overlooked the "third option" of not setting the variable. Let me reevaluate.

[jpfeuffer]

Ok so ignore point b) but the rest of the issue still stands:

• Why deviate from the FindModule for the same variable?
• How to look for both, either shared or static? (Without triggering two searches where one will unnecessarily clutter the CMake configuration logs.)

[jpfeuffer]

IMHO the behaviour should be at least:

(changes in bold)

Boost_USE_STATIC_LIBS: When ON, uses static Boost libraries; when OFF,
uses shared Boost libraries; when not set, PREFERS
static on Windows, shared otherwise but accepts both.

Or just follow the behaviour from the FindModule.

[pdimov]

Our generated config files don't have the ability to accept both static and shared. It needs to be chosen beforehand. That's why we don't match the FindBoost behavior.

[jpfeuffer]

I see. Is this a general limitation of how boost is designed or was it "just not implemented yet"? If it's a limitation, can you very shortly elaborate on the problem?

In general I think CMake config files can support that.