[CentOS] mock gimmicks - experts?

Mon Feb 28 14:49:17 UTC 2022
lejeczek <peljasz at yahoo.co.uk>

Hi guys.

I'm trying something I believe is trivial, on centOS 9 with mock version 

-> $ mock -r centos-stream-8-x86_64 --rootdir=~/mock 
--localrepo=/00.STORAGE/1/var/www/repos --continue --chain 
./mpfr-4.1.0-7.el9.src.rpm ./libmpc-1.2.1-4.el9.src.rpm


CentOS Stream 8 - PowerTools 14 kB/s | 4.4 kB     00:00
  Problem: cannot install the best update candidate for package 
   - problem with installed package libmpc-1.1.0-9.1.el8.x86_64
   - package libmpc-1.1.0-9.1.el8.x86_64 requires libmpfr.so.4()(64bit), 
but none of the providers can be installed
   - cannot install the best update candidate for package 
   - cannot install both mpfr-4.1.0-7.el8.x86_64 and mpfr-3.1.6-1.el8.x86_64
   - cannot install both mpfr-3.1.6-1.el8.x86_64 and mpfr-4.1.0-7.el8.x86_64
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' 
to use not only best candidate packages)
ERROR: Exception(./libmpc-1.2.1-4.el9.src.rpm) 
Config(centos-stream-8-x86_64) 0 minutes 6 seconds
INFO: Results and/or logs in: 
ERROR: Command failed:


Why would it end up asking for 'mpfr-3.1.6' if 'libmpc-1.2.1' requires 
ver. >4.x and..

why would 'ibmpc-1.1.0-9.1' even show up there I cannot wrap my head 
around it.

I've only started using 'mock' but this weird stuff have not seen until now.

many thanks, L.