[Boost-users] Re: "Compiler threading support not turned on" error

From: Rodolfo Schulz de Lima (rodolfo_at_[hidden])
Date: 2004-09-25 18:44:43

I had this problem while compiling boost for mingw32 (linux->win32). For
unknown reasons (to me), mingw's gcc-3.4.1 doesn't compile by default
with
threads enabled. This way, libstdc++'s define named
_GLIBCXX_HAVE_GTHR_DEFAULT isn't defined. If you look in
boost/config/stdlib/libstdcpp3.hpp, you'll see that if this define isn't
defined, BOOST_HAS_THREADS doesn't get defined either. This check
doesn't exist in boost-1_31, but exists in boost-1_32 (from CVS). So I
compiled gcc again using --enable-threads, and suddenly all worked as
expected.

[]'s
rod

On Thu, Sep 23, 2004 at 11:47:04AM -0500, Glen Simmons wrote:
> I'm attempting to use Boost.threads on Mac OS X 10.3 and am getting the 
> error "Compiler threading support is not turned on" when trying to 
> compile. I'm using Xcode, which is Apple's IDE, so I'm not sure what to 
> do when the error text helpfully suggests I set the correct command 
> line option. As far as I know, there's nothing extra that you have to 
> do to enable threading support in the compiler. I've written 
> multi-threaded apps using pthreads and never had to deal with command 
> line options. Any suggestions?
> 
> Thanks,
> Glen Simmons