Re: problem with missing link to libX11

On Mon, 03 Jan 2011 22:43:58 -0600, Travis Watkins wrote:

> On 01/03/2011 12:14 PM, Enrico Minack wrote:
  > >
  > > Hi Gnome developers,
  > >
  > > I recently came across a strange compilation problem where multiple
  > > projects fail to compile with the same error? They compiled earlier, and
  > > I have a fresh installation. The error is:
  > >    /usr/bin/ld: ...: undefined reference to symbol '...'
  > >    /usr/bin/ld: note: '...' is defined in DSO .../libX11.so so try adding
  > > it to the linker command line
  > >    .../libX11.so: could not read symbols: Invalid operation
  > >
  > > The problem can be fixed by adding $(X_LIBS) to the *_LDADD variable of
  > > Makefile.am, see bug #638510:
  > >   https://bugzilla.gnome.org/show_bug.cgi?id=638510
  > >
  > > Projects with this problem are (respective branch):
  > >    gnome-applets (master)
  > >    gnome-panel (gtk3)
  > >    libwnck (gtk3)
  > >
  > > I am using Ubuntu 11.04 (development branch). 
  >
  > The linker in Ubuntu natty (and most other distros with releases in
  > development, I think?) is stricter. You used to be able to have libA use
  > symbols from libB and libC but only link to libB because libB links to
  > libC so you get an implicit dependency. You now have to explicitly link
  > to all libraries you use symbols from. 
 
darwin has always been this way. Thanks to my newfound brothers-in-arms 
for helping to find these nits and working on getting these fixed in 
upstream sources. 
 
dan

  --
Daniel Macks
  [email protected]


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