On Wed, May 12, 2004 at 04:18:05PM +0200, Christoph Ludwig wrote:
On Wed, May 12, 2004 at 01:05:11PM +0100, Jonathan Wakely wrote: [...]
Looking at the GCC sources under gcc/config/ it appears that some platforms (e.g. Solaris2, NetBSD, Linux on certain architectures) define _PTHREADS when -pthread is used. x86-linux is not one of those platforms, nor is FreeBSD. It might be possible to get that macro, or something else, defined on all platforms when -pthread is given so Boost could check for that.
Cristoph, did you ever ask about this issue on the "gcc" list, or just "gcc-help" ?
I did only ask on gcc-help.
But I'll probably file a bug report today or tomorrow; even if the gcc developers don't agree that the definition of _REENTRANT in single threaded mode is a regression, there's at least a documentation bug: The -pthread option isn't documented at all for x86-Linux. It's therefore hard to tell which preprocessor definitions are correct and what behaviour you can count on (e.g., with respect to the initialization of local static variables).
I entered a report in the gcc bug database: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15415 Regards Christoph -- http://www.informatik.tu-darmstadt.de/TI/Mitarbeiter/cludwig.html LiDIA: http://www.informatik.tu-darmstadt.de/TI/LiDIA/Welcome.html