nvidia-driver port in the same fashion it was done as the conflict
with the libGL port.
Mesa ports:
Add pkg-[de]install scripts to handle the symlinks in the libEGL
and libglesv2 port.
Move pkg-[de]install scripts of libGL out of files/
Put the real mesa libraries into lib/.mesa so we don't have each
port create a directory for it own use.
Nvidia-driver:
Only apply the libEGL.so and libGLESv2.so alternative install
directory if nvidia-driver actually ships them. Copied from
PR submitter, since it was much cleaner then my initial attempt.
Make pkg-install script check if the nvidia-driver port installed
the libEGL/libglesv2 libraries and only then make the symlinks.
This should allow the script to work with the slave ports which
don't install these libraries.
Make the pkg-deinstall script check if the mesa version of
the libEGL/libGLESv2 libraries are installed before trying to
recreate the symlinks of those ports.
PR: 194924
Submitted by: Gerard Seibert <gerard_seibert@outlook.com>
Approved by: portmgr (angrybapt)
