Major bug -- Exception handling broken

[Parker, Ron]

> Exception handling in g++ is totally broken in the current Cygwin
> release. Almost any program that uses exceptions crashes:
> 
> class Foo {};
> int main() {
>   try { throw Foo(); }
>   catch (const Foo&) { return 0; }
> }
> 
> $ g++ foo.cpp -o foo
> $ ./foo
> 0 [main] foo 1007 handle_exceptions: Exception: 
> STATUS_ACCESS_VIOLATION
> 5052 [main] foo 1007 stackdump: Dumping stack trace to 
> foo.exe.stackdump

I have verified that this is a bug.  Mumit Khan, the cygwin gcc guru, is out
of the country and should be back mid-June.  In the mean time I will see
what I can find.

For the time being you may work around it by replacing g++ in the command
line with gcc.  That produces a working executable.  My best guess at this
time is that there is a problem with g++ in the specs file.  I will check it
next.