debug-options for libstdc++-2.90.3

[Benjamin Kosnik]

> 1. I tried configure --help but couldn't find any option to enable debugging. Typically, the makefile should include something lige "CC -g ..." for debugging enabled. How do I build so that I can debug the library? I would like to be able to single-step through the source code which should be possible since it's included in the distribution.

get the new snapshot. Debugging is enabled by default.

> 2. I set CXX=g++ but in the Makefile I read 
> 
> CC=gcc
> CXX=c++
> 
> What does CXX=g++ really imply? Isn't g++ used after all?

it's an autoconf/automake macro that specifies the compiler. 

-benjamin