How do I pass flags to the testsuites?

[Mark Mitchell]

I configured a tree with:

  env CXXFLAGS="-fnew-abi -fno-honor-std" ../configure

But, I get test failures because those flags are not automatically
passed to the tests.  Did I do the configure wrong?  How do I manually
pass these flags to the libio/libstdc++/g++ test suites?  Why don't
those flags get passed automatically? 

If someone answers these questions, I promise to add a FAQ entry.

-- 
Mark Mitchell 			mark@markmitchell.com
Mark Mitchell Consulting	http://www.markmitchell.com