Boost C++ Libraries: Ticket #470: Cannot compile on Sparc/NetBSD: redefinition of `struct

John Maddock — Tue, 23 Aug 2005 16:41:22 GMT

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I'm not sure what we do about that: the bottom line is that
the system should only have one version of type_traits.h.
I've looked at cygwin and Linux and these do have two
versions of that file but they are identical, or at least
they both use _TYPE_TRAITS_H as an include guard.
Can you try something like the following program and see if
it reproduces the issue, if it does, can you please report
the bug to either the gcc or the NetBSD folks?
#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>
#include <type_traits.h>
Thanks,
John Maddock.

bortz — Wed, 24 Aug 2005 08:06:32 GMT

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Indeed, the sample program suggested by johnmaddock fails in
the same way on the Sparc/NetBSD (while it compiles fine on
a Sparc/Linux).
Reported to NetBSD people.

John Maddock — Fri, 07 Oct 2005 12:27:19 GMT

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I'm going to add a fix to boost/type_traits/intrinsics.hpp
to include <algorithm> rather than <type_traits.h> in order
to avoid this issue.  It's a rather fragile fix, but I
believe it will do the job.
John.

status changed

John Maddock — Fri, 07 Oct 2005 12:27:20 GMT

status assigned → closed