[boost] [fusion] Visual C++ 8.0 compilation errors

Subject: [boost] [fusion] Visual C++ 8.0 compilation errors
From: Ralf W. Grosse-Kunstleve (rwgk_at_[hidden])
Date: 2011-01-20 13:43:34

I'm running nightly local multi-platform builds using the boost trunk.
The last two nights the Visual C++ 8.0 build (Windows XP 32-bit) was
broken:

C:\AUTOBU~3\sources\boost\boost/fusion/sequence/
comparison/less_equal.hpp(48) : error C2039: 'is_native_fusion_sequence' : is 
not a member of 'boost::fusion::detail'
C:\AUTOBU~3\sources\boost\boost/fusion/sequence/comparison/less_equal.hpp(48) : 
error C2065: 'is_native_fusion_sequence' : undeclared identifier
C:\AUTOBU~3\sources\boost\boost/fusion/sequence/comparison/less_equal.hpp(48) : 
error C2974: 'boost::disable_if' : invalid template argument for 'Cond', type 
expected
        C:\AUTOBU~3\sources\boost\boost/utility/enable_if.hpp(59) : see 
declaration of 'boost::disable_if'
C:\AUTOBU~3\sources\boost\boost/fusion/sequence/comparison/less_equal.hpp(48) : 
error C2988: unrecognizable template declaration/definition
C:\AUTOBU~3\sources\boost\boost/fusion/sequence/comparison/less_equal.hpp(48) : 
error C2059: syntax error : ','
C:\AUTOBU~3\sources\boost\boost/fusion/sequence/comparison/less_equal.hpp(48) : 
error C2039: 'type' : is not a member of '`global namespace''

boost svn rev. 68202 three nights ago still worked, rev. 68221 was the
first I noticed that doesn't.

VC 9 and 10 are fine, and so are many Linux and Mac builds. The failure is
specific to VC 8.

Ralf