Re: [Boost-build] Jamfile syntax question

Subject: Re: [Boost-build] Jamfile syntax question
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2016-12-23 16:49:42

AMDG

On 12/23/2016 10:03 AM, Robert Ramey wrote:
> <snip>
> if ! $(BOOST_ARCHIVE_LIST) {
>     if [ requires std_wstreambuf ] {
>     <snip>
> 
>     # enable the tests which don't depend on a particular archive
>     BOOST_SERIALIZATION_TEST = true ;
> }
> 
> Will this work as want it to?
> 

  No.  [ requires std_wstreambuf ] should be
used in target requirements.  If you use
it in an if statement, it will always evaluate
as true (requires doesn't return a boolean value.
Treating the result as a boolean is syntactically
legal, but doesn't do what you want).  Keep in mind,
that it's entirely possible to build with a compiler
that supports wstream and one that doesn't simultaneously.

In Christ,
Steven Watanabe