On 04/29/2016 04:31 PM, Emil Velikov wrote:
Hi Jon,
On 28 April 2016 at 17:38, Jon Turney <[email protected]> wrote:
On 28/04/2016 14:59, Emil Velikov wrote:
Are you sure that think this is correct ? Afaict things should work,
despite that xserver sets SYMBOL_VISIBILITY=no.
Jon, any ideas why xserver disables -fvisibility=hidden ? Should we
remove that line or there's something subtle that requires the
behaviour ? For example: relying on symbols that are not marked as
exported or alike.
From past (ancient) experiences and reading the wiki correctly,
combining -fivisiblity=hidden + dllimport/dllexport should work fine ?
As far as I recall, the issue was simply that if you use -fvisibility=hidden
for a PE/COFF target, gcc will warn 'visibility attribute not supported in
this configuration; ignored' on every single symbol declaration with default
visibility, which is really annoying...
Is there a way to toggle the visibility on global scale - or it
defaults to hidden automatically when dllimport/dllexport is detected
?
Any ideas why the latter are not included in xproto ?
FYI gcc -shared seems to export all symbols regardless of dllexport
annotations of -fvisibility settings. You seem to need dlltool magic to
actually hide symbols in dlls (again, I'm not proficient with MinGW/Cygwin).
Thanks
Emil
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