[ANN] --enable-dbgutil: everyone gets a Debug STL!

[Tor Lillqvist]

>writing numbers to std streams now suppresses all output to
> those streams, so that e.g., SAL_WARN("foo","bar") only writes "warn:foo:"

Ah! Thanks for hunting this down, I had noticed but had not had time
to dig deeper...

> Why _GLIBCXX_DEBUG causes this problem on Mac OS X now, and how to solve it,
> is still unclear to me.

I guess -D_GLIBCXX_FULLY_DYNAMIC_STRING did not do anything to improve
this? Some other magic _GLIBCXX_FOO that needs to be defined perhaps?

--tml