[boost] [test] Any dependency on Boost.Test requires C++11 ?

Subject: [boost] [test] Any dependency on Boost.Test requires C++11 ?
From: John Maddock (boost.regex_at_[hidden])
Date: 2013-03-15 06:54:27

At present any test in Boost.Math that depends on Boost.Test fails for GCC 
prior to 4.5 because the build script for Boost.Test has:

<toolset>gcc:<cxxflags>-std=gnu++0x

Is this really required?

It looks wrong headed to me:

* We already have testers that test both C++03 and C++11 modes - so we don't 
need this to test C++11 support.
* It's presence makes testing gcc in C++03 mode impossible if the library 
uses Boost.Test - so there may be C++03 breakages that we don't know about 
because of this.
* As mentioned above, this is a hard error for GCC prior to 4.5, so those 
compilers can't be tested either.

Can this be safely removed?

Many thanks, John.