[Bug other/11953] _REENTRANT defined when compiling non-threaded code.

[redi at gcc dot gnu dot org]

------- Additional Comments From redi at gcc dot gnu dot org  2004-05-13 11:15 -------
Bug 15415 relates to problems using Boost due to this issue, which I don't think
is INVALID.

Ben's suggestion of using _POSIX_THREADS >= 0 doesn't work either, as it is also
defined whether you use -pthread or not (at least on Linux and FreeBSD)

Would it be possible for all relevant platforms to define something such as
_GXX_PTHREADS when -pthread is given? This would allow Boost to reliably detect
whether or not to use threadsafe constructs when compiled with G++ 3.4


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11953