[cet@carlthompson.net: Re: Extreme newbie here...]
Parker, Ron
rdparker@butlermfg.com
Fri Jun 9 10:40:00 GMT 2000
> >bash-2.04$ g++ -mno-cygwin -fno-rtti hello.cpp -o hello
> >/usr/lib/gcc-lib/i686-pc-cygwin/2.95.2/libgcc.a(_eh.o): In function
> >`_eh_rtime_match':
> >/home/src/gcc-2.95.2/gcc/./libgcc2.c(.text+0x389): undefined
> reference to
> >`_impure_ptr'
> >collect2: ld returned 1 exit status
> >
> >If your source code will compile with -fno-exceptions, it
> should work in
> >most cases.
>
> Hmm. We noticed this when building strace and Mumit
> submitted a workaround
> for it. If you search the cygwin-developers archive you
> might find the
> reason for this. I think that the gcc library is somehow
> pulling in bits
> of the cygwin library.
Unfortunately compiling with -fno-exceptions isn't always an option and
adding a dummy "int _impure_ptr;" declaration as was done in strace does not
work always work. Even the simple eh_hello.cpp I wrote up will GP if you
try this. I have also compiled and linked against Mumit's ming-extras
package it still dies.
I feel like the great white bug hunter. "Dr. Livingston, I presume?"
Which brings the following sick story to mind,
http://www.qnx.com/~glen/deadbeef/3821.html . It is gross and disgusting.
You have been warned.
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