VLC not compiling on RPI 4

I have searched for VLC on ARM Slackware current but not finding it, I have tried to compile it on my RPI4 using AlienBob Slackbuild.

Everything was fine until the Slackbuild wants to compile vpx !

Here is the log :
Code:**
** vpx ...
**
Hmm... Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|--- libvpx-v1.1.0/build/make/configure.sh.orig 2012-05-08 23:14:00.000000000 +0000
|+++ libvpx-v1.1.0/build/make/configure.sh 2013-05-22 09:49:32.540985055 +0000
--------------------------
patching file build/make/configure.sh
Using Plan A...
Hunk #1 FAILED at 725.
Hunk #2 FAILED at 738.
2 out of 2 hunks FAILED -- saving rejects to file build/make/configure.sh.rej
done