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Re: New experimental package: gcc4-4.3.0-1


On Wed, Sep 10, 2008 at 10:38:27PM -0700, Brian Dessent wrote:
>Christopher Faylor wrote:
>>I haven't tried this with the actual released compiler yet but,
>>assuming it works the same way, mm I wrong or is there something wrong
>>with this compiler?  The code it creates seems to be correct (and
>>Cygwin is noticeably smaller) but I'd like to get rid of all of the new
>>warnings.  I can't get rid of this one because I don't see how to do
>>that.
>
>The warning is correct, technically.  When compiling strsig.cc, you
>want the variable to be exported, not imported.  When compiling
>everything else that includes signal.h, you want it to be imported.
>
>There are actually two things wrong here, as I see it: one, dllexport
>should not be necessary at all as the exports are controlled by the
>.def file.

sys_sigabbrev is not in cygwin.def.  There are several variables which
are not exported via cygwin.def.

>Two, you only want the dllimport attribute to be present when
>signal.h is included by clients, i.e. outside of Cygwin, so the
>__declspec should be turned off #if defined(__INSIDE_CYGWIN__).

Oh well.  I would have sworn that the dllimport/dllexport combination
was an accepted idiom but I can't find any documentation to support
that.  I should have just done some research before sending this email
but I thought I vaguely recalled that this was reported as a bug at some
point.

Thanks for the clarification.

cgf

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