Re: [boost] [build] adding a rquirement for Cygwin only?

AMDG On 01/19/2015 09:34 AM, Peter Dimov wrote:

Is it possible to add, for example, <threadapi>pthread to a project's requirements, but only for Cygwin?

This works:

<toolset>gcc,<target-os>windows:<threadapi>pthread

but it also applies to MinGW.

This only applies to MinGW:

toolset-gcc:flavormingw:<threadapi>pthread

but Cygwin has no <flavor>.

This:

<toolset>gcc,<target-os>windows:<threadapi>pthread toolset-gcc:flavormingw:-<threadapi>pthread

doesn't work.

There are references to <target-os>cygwin in gcc.jam, but <target-os> is actually 'windows'.

The correct <target-os> for Cygwin should be cygwin, not windows. The problem is that target-os is not auto-detected and defaults to being the same as host-os. In Christ, Steven Watanabe