less aggressive glibc rebuilds

glen glen at pld-linux.org
Thu Sep 6 12:42:51 CEST 2018

On 9/6/18 11:59 AM, Jacek Konieczny wrote:

> On 2018-09-06 10:50, glen wrote:
>> could we make not so often glibc upgrades in th?
>> at least keep builders glibc version low, so that built packages do not
>> require the latest and bleeding glibc SONAME symbols? (unless there's
>> actual benefit in that package for newer glibc)
>> it's very disturbing that wanting to install some new package, i'm
>> forced to upgrade whole system.
> Why whole system? Glibc upgrades are backward compatible most of the
> time. So it is just upgrading the package you want and glibc, not a big
> issue. I cannot recall the last time glibc upgrade pulled anything more.
> openssl upgrades are much more problematic.
i mean if i build thing with glibc 2.28 installed, and my system has 
2.27, then glibc upgrade is needed as well due versioned glibc symbols

Processing dependencies...
open-vm-tools-10.1.5-2.x86_64 obsoleted by open-vm-tools-10.3.0-2.x86_64
open-vm-tools-10.3.0-2.x86_64 marks glibc-2.28-3.x86_64 (cap 
  glibc-2.27-8.x86_64 obsoleted by glibc-2.28-3.x86_64
    greedy upgrade iconv-2.27-8.x86_64 to 2.28-3.x86_64 (unresolved 
glibc = 6:2.27-8)
     iconv-2.27-8.x86_64 obsoleted by iconv-2.28-3.x86_64
       greedy upgrade glibc-localedb-delfi-2.27.0-1.x86_64 to 
2.28.1-1.x86_64 (unresolved iconv = 6:2.27)
        glibc-localedb-delfi-2.27.0-1.x86_64 obsoleted by 
    greedy upgrade glibc-libcrypt-2.27-8.x86_64 to 2.28-3.x86_64 
(unresolved glibc = 6:2.27-8)
     glibc-libcrypt-2.27-8.x86_64 obsoleted by glibc-libcrypt-2.28-3.x86_64
    greedy upgrade glibc-misc-2.27-8.x86_64 to 2.28-3.x86_64 (unresolved 
glibc = 6:2.27-8)
     glibc-misc-2.27-8.x86_64 obsoleted by glibc-misc-2.28-3.x86_64
  glibc-2.28-3.x86_64 marks ldconfig-2.28-3.x86_64 (cap ldconfig = 6:2.28-3)
   ldconfig-2.27-8.x86_64 obsoleted by ldconfig-2.28-3.x86_64
open-vm-tools-10.3.0-2.x86_64 marks xmlsec1-1.2.26-2.x86_64 (cap 
  xmlsec1-1.2.26-2.x86_64 marks libxslt-1.1.32-1.x86_64 (cap libxslt >= 
There are 9 packages to install (8 marked by dependencies), 7 to remove:
I open-vm-tools-10.3.0-2.x86_64
D glibc-2.28-3.x86_64  glibc-libcrypt-2.28-3.x86_64 
glibc-localedb-delfi-2.28.1-1.x86_64  glibc-misc-2.28-3.x86_64 
iconv-2.28-3.x86_64  ldconfig-2.28-3.x86_64  libxslt-1.1.32-1.x86_64
D xmlsec1-1.2.26-2.x86_64
R glibc-2.27-8.x86_64  glibc-libcrypt-2.27-8.x86_64 
glibc-localedb-delfi-2.27.0-1.x86_64  glibc-misc-2.27-8.x86_64 
iconv-2.27-8.x86_64  ldconfig-2.27-8.x86_64 open-vm-tools-10.1.5-2.x86_64
This operation will use 7.0MB of disk space.

if open-vm-tools was built with older glibc present on builder, i could 
just install the package, not pull glibc and related deps

and this can recurse big enough if some upgraded dependent package pulls 
another library rebuild, etc. on some other system i was forced to 
install 900mb packages due gdbm, ffmpeg, etc libraries which all 
stareted from simple GLIBC_2.28 dep.


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