compiling LEDA 4.1 problem

[Gabriel Arcos <gabrielarcos_listas at cantv dot net>]

	Hi! I'm using g++ 2.96 and I'm trying to compile LEDA 4.1 (Library of 
Efficient Data types and Algorithms). When I'm trying the following warnig 
appear:

In file included from ../../incl/LEDA/event.h:136,
		from ../../incl/LEDA/graph.h:39,
		from _graph.c:18:
../../incl/LEDA/event_macros.h:194:1: warning: pasting ","  and "_E1FMT0" 
does not give a valid preprocessing token

and this warning and others similar to this degenerate to a error.

What is happend? how can I fix this error?

I have installed gcc 3.0.1 too, but things are nasty, I thing some kind of 
incompatibility between LEDA 4.1 source and stdlibc++-v3 becouse the error 
tell me something like there is not constructor which take the arguments in a 
call of the LEDA source. 

So, if somebody have any idea please tell me. I will prefer to compile with 
g++ 3.0.1, but g++ 2.96 works too.