libX11: Changes to 'master'

[GitLab Mirror]

 configure.ac         |    1 
 m4/ax_gcc_builtin.m4 |  176 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/GetImage.c       |   15 +++-
 3 files changed, 189 insertions(+), 3 deletions(-)

New commits:
commit caa71668af7fd3ebdd56353c8f0ab90824773969
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Mon Sep 28 16:16:07 2020 -0700

    Use __builtin_popcountl if available to replace Ones() in GetImage.c
    
    If the compiler knows of a better algorithm for counting the number of
    bits set in a word for the target CPU, let it use that, instead of the
    classic algorithm optimized for PDP-6.
    
    Based on libXext commit 490a25e6f8a4d2482af4364c700b68ad11a4d10b
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>