Any cygwin savvy developers out there? Cygwin build problem

[Keith Seitz <keiths at redhat dot com>]

Hi,

I think there are a few of you out there. Anyone know what the following 
errors might arise from?

Several users have reported this problem to the bug database. I haven't 
seen this on my cygwin machine (Win2k, cygwin updated, insight built on 
19 May 2006). Was hoping someone might have an idea.

Creating library file: libtcl84.a
tclWin32Dll.o: In function `TclpCheckStackSpace':
/home/brgordon/insight-6.4/tcl/win/tclWin32Dll.c:364: undefined 
reference to `__except_checkstackspace_handler'
tclWinChan.o: In function `Tcl_MakeFileChannel':
/home/brgordon/insight-6.4/tcl/win/tclWinChan.c:1056: undefined 
reference to `__except_makefilechannel_handler'
tclWinFCmd.o: In function `DoCopyFile':
/home/brgordon/insight-6.4/tcl/win/tclWinFCmd.c:558: undefined reference 
to `__except_docopyfile_handler'
tclWinFCmd.o: In function `TclpObjRenameFile':
/home/brgordon/insight-6.4/tcl/win/tclWinFCmd.c:204: undefined reference 
to `__except_dorenamefile_handler'
collect2: ld returned 1 exit status
make[3]: *** [tcl84.dll] Error 1
make[3]: Leaving directory `/home/brgordon/insight-6.4/tcl/win'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/home/brgordon/insight-6.4/tcl'
make[1]: *** [all-tcl] Error 2
make[1]: Leaving directory `/home/brgordon/insight-6.4'
make: *** [all] Error 2

These appear to be all "#ifdef HAVE_NO_SEH" bits which are defined in 
the files with the errors. For example, the undefined symbol 
_except_checkstackspace_handler is defined in TclWin32Dll.c:398:

#ifdef HAVE_NO_SEH
static
__attribute__ ((cdecl,used))
EXCEPTION_DISPOSITION
_except_checkstackspace_handler(
    struct _EXCEPTION_RECORD *ExceptionRecord,
    void *EstablisherFrame,
    struct _CONTEXT *ContextRecord,
    void *DispatcherContext)
{
    __asm__ __volatile__ (
            "jmp checkstackspace_reentry");
    return 0; /* Function does not return */
}
#endif /* HAVE_NO_SEH */

Could this be a gcc-ism? My box is using 3.4.4 cygming special.

Keith