On 26/04/2010 17:45, Eric Blake wrote:
> [this was originally raised on the libvirt list]
>
> On 04/25/2010 05:32 AM, Matthias Bolte wrote:
>> + struct sigaction action_stop;
>>
>> - struct sigaction action_stop = {
>> - .sa_handler = stop
>> - };
>> + memset(&action_stop, 0, sizeof action_stop);
>> +
>> + action_stop.sa_handler = stop;
>
> This is because on Linux, sa_handler is a macro that expands into an
> access of a named member of a named union, whereas on cygwin, sa_handler
> is a directly named member of an anonymous union. Is this a gcc bug, or
> should we be changing cygwin/signal.h to follow Linux' lead of using
> macros to access named unions to allow source compatibility, since gcc
> falls flat at performing named initialization of a member of gcc's
> extension of an anonymous union?
This is the long-standing PR10676 :-(
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676
Given the rate of progress so far, I reckon we should adopt Linux'
workaround. Hopefully we'll be able to take it back out again someday.
cheers,
DaveK
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