XPost: linux.debian.bugs.dist 
 From: guillem@debian.org 
  
 On Tue, 2025-09-16 at 15:49:22 +0200, Michael Biebl wrote: 
 > Package: dpkg-dev 
 > Version: 1.22.21 
 > Severity: important 
 > File: /usr/bin/dpkg-shlibdeps 
  
 > for some back story please see 
 > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1111805#49 
 > 
 > In https://salsa.debian.org/glibc-team/glibc/-/commit/5e3aa111 
 54e9aad080881fb98f9e5b01b277857 
 > (currently only available via Debian experimental), 
 > the duplicated paths for /lib were removed from ld.so.conf files. 
 > 
 > This triggered a build failure for ncl, hdf-eos5 and ruby-hdfeos5. 
 > 
 > All those packages link against libgctp and the build failures look 
 > similar: 
  
 > If you want to reproduce the problem, remove the line 
 > /lib/x86_64-linux-gnu 
 > in /etc/ld.so.conf.d/x86_64-linux-gnu.conf and try to build one of those 
 > packages in debian sid or trixie. 
  
 The problem can be reproduced in Debian sid, with no ld.so.conf 
 modifications. (Or I botched my testing?) 
  
 > It is unclear to me, if this is a problem in libgctp, dpkg-shlibdeps or 
 > the affected packages themselves. I decided to file it against 
 > dpkg(-shlibdeps) as it is the command failing. 
 > I chose severity important (as it makes packages FTBFS) and it probably 
 > should be bumped to RC once glibc with that change is uploaded to 
 > unstable. 
  
 It looks to me like this breakage comes from the recent 
 libgctp upload. I've not looked into what that might be though, but 
 otherwise I'll reassign to that package later today. 
  
 Thanks, 
 Guillem 
  
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