Le 09/05/2017 à 15:47, Frédéric Bron via Boost a écrit :

Hi,

I always use boost as static libraries. For a long time, I have been used to define macro BOOST_THREAD_USE_LIB on windows when cross-compiling from linux to windows with mingw.

I have now made a new cross-compiler conformant with pthread (the previous one had only win32 api) but then boost does not build (with threadapi=posix). It seems that not defining BOOST_THREAD_USE_LIB helps.

Please could you report the rrors reported?

I do not remember why I used to define BOOST_THREAD_USE_LIB a long time ago and cannot find any help in the doc (http://www.boost.org/doc/libs/1_64_0/doc/html/thread/build.html).

What is the meaning of BOOST_THREAD_USE_LIB?

This is a very old flag and I have no idea for what it was used and I agree http://www.boost.org/doc/libs/1_64_0/doc/html/thread/build.html doesn't explains for what it is used for. I've the impression that it is not needed anymore, but I don't see how defining or not it could imply errors. Best, Vicente