failure compile libGL-11.1.2

[Tijl Coosemans]

On Mon, 18 Apr 2016 15:13:39 +0200 Willem Offermans <Willem at Offermans.Rompen.nl> wrote:
> Dear FreeBSD friends,
> 
> I have inherited an old FreeBSD beast and I'm trying to update it to 10.3.
> 
> However the following error occurred during compiling libGL:
> 
> ===>  Building for libGL-11.1.2  
> 
> [cut some messages in between]
> 
> libtool:   error: cannot find the library '/usr/local/lib/libXext.la' or unhandled argument '/usr/local/lib/libXext.la'
> 
> '/usr/local/lib/libXext.la' is indeed not present. But the file is also not 
> present on another FreeBSD 10.2 system. So I suppose it is not needed. Is 
> there something old on the server pointing to this file? How can I proceed?

See the 20140909 entry in /usr/ports/UPDATING.