Moving this issue from bug 2723, comment #7:
==12286== Conditional jump or move depends on uninitialised value(s)
==12286== at 0x4A9256: Fl_X::make_xid(Fl_Window*, XVisualInfo*, unsigned
long) (in /home/astrand/ctc/client/tlclient/tlclient.bin)
==12286== by 0x417C12: MainWindow::MainWindow(std::string, std::string,
==12286== by 0x41076D: TLClient::runApplication() (tlclient_tlclient.cc:433)
==12286== by 0x40FA95: main (tlclient_main.cc:288)
Google finds a few hits for this, such as
This warning does not happen with the previous client, but I think this is
because these problems are specific to the 64 bit client. See also:
According to that STR, everything should be fine since r8732. Perhaps the
problem is some of our patches?
I've tried the FLTK demo programs, but cannot see the problem there.