[Qucs-help] problem with digital simulation

[Yann D. <Skratchie@GMX.de>]

Hi everyone.

Since digital simulation does not work yet under windows, I tried to get 
it working under linux... (gentoo)

After emerging qucs with porthole and trying to start a digital 
simulation, he (qucs) told me that he could not find freehdl.
So I emerged that as well. Then he told me that he could not find 
freehdl-configure.
So I downloaded the rpm and compiled freehdl manually (configure, make, 
make install).
Now he tells me (with the sample digital-adder ciruit from your hp)
  Progress:
Starting new simulation on Sat 25. Feb 2006 at 08:59:19

creating netlist... done.
running C++ conversion... done.
compiling functions... done.
compiling main... done.
linking... done.
simulating...
Errors occured during simulation on Sat 25. Feb 2006 at 08:59:31
Aborted.

  Errors and warnings:
/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.6/../../../../i686-pc-linux-gnu/bin/ld: 
warning: libstdc++.so.6, needed by /usr/local/lib/libfreehdl-kernel.so, 
may conflict with libstdc++.so.5
*** glibc detected *** free(): invalid pointer: 0x08057110 ***
/usr/bin/qucsdigi: line 79: 22760 Aborted                 ./$NAME -cmd 
"dc -f $NAME.vcd -q;d;run $TIME;q;" >/dev/null

I just installed gcc 3.4.4...

I am sorry if this all is a stupid question!
What should I do?
Perhaps explain qucs somehow that it should be using gcc 3.4.4 ??

Thanks a lot!
Yann