Re: graphics/glut symbol problems

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

On Thu, Jun 05, 2008 at 09:42:56AM +0100, raymond.meyer%rambler.ru@localhost 
wrote:
> Next, reading graphics/MesaLib/hacks.mk I see the following compiler flags, 
> which might help to solve the problem:
> 
> .  if !empty(CC_VERSION:Mgcc-[4-9]*)
> # Don't hide symbols for glut by default, it doesn't know how to unhide them.
> .    if empty(PKGNAME:M*glut*)
> PKG_HACKS+=             gcc-hidden-visibility
> CFLAGS+=                -fvisibility=hidden
> .    endif
> .  endif
> 
> However, if I don't want to hide the symbols, then shouldn't the above 
> be -fvisibility=default? Can anyone elaborate on this?

It's quite simple: it is broken.

The above code should read:

.  if !empty(CC_VERSION:Mgcc-[4-9]*)
# Don't hide symbols for glut by default, it doesn't know how to unhide them.
.    if empty(PKGNAME:M*glut*)
PKG_HACKS+=             gcc-hidden-visibility
BUILDLINK_TRANSFORM+=   rm:-fvisibility=hidden
.    endif
.  endif

This is what caused all the problems with the "MesaLib" package.
Thanks a lot for figuring this out.

        Kind regards

-- 
Matthias Scheler                                  http://zhadum.org.uk/