From: helmut@subdivi.de   
      
   Control: lib32z1 installs a 64bit library   
   Control: reassign -1 lib32z1   
   Control: found -1 1:1.3.dfsg+really1.3.1-2   
   Control: severity -1 grave   
   Control: tags -1 = patch   
      
   On Sat, Feb 14, 2026 at 09:11:15AM +0100, Fab Stz wrote:   
   > Maybe I'm wrong, but from what I understand /usr/lib32/libz.so.1 is built   
   for x64 (ELF64) while it should be for x32 (ELF32).   
      
   Thank you. This is a key insight. I looked at the most recent amd64   
   build log from the buildds and found that the lib32 built notably lacked   
   -m32.   
      
   This pretty much renders lib32z1 unusable justifying grave severity, but   
   note that the essential zlib1g binary package is not impacted.   
      
   Then, I went on to diff the relevant versions. Would there be a chance   
   to use a public version constrol system for zlib maintenance? I found   
   this:   
      
   | diff -Nru zlib-1.3.dfsg+really1.3.1/debian/rules zlib-1.3.dfsg   
   really1.3.1/debian/rules   
   | --- zlib-1.3.dfsg+really1.3.1/debian/rules      2024-05-10 11:   
   2:36.000000000 +0200   
   | +++ zlib-1.3.dfsg+really1.3.1/debian/rules      2026-01-31 13:   
   0:16.000000000 +0100   
   | @@ -36,22 +36,14 @@   
   | ~   
   |  ifeq (,$(filter nobiarch,$(DEB_BUILD_PROFILES)))   
   | ~   
   | -32-ARCHS=amd64 ppc64 kfreebsd-amd64 s390x   
   | +32-ARCHS=amd64 ppc64 kfreebsd-amd64   
   |  64-ARCHS=s390 sparc i386 powerpc mips mipsel mipsn32 mipsn32el mipsr6   
   mipsr6el mipsn32r6 mipsn32r6el x32   
   | ~   
   |  ifneq (,$(filter $(DEB_HOST_ARCH), $(32-ARCHS)))   
   |  EXTRA_INSTALL=install32   
   |  EXTRA_BUILD=build32-stamp   
   | -# s390x fails at compatibility.   
   | -ifneq (,$(filter $(DEB_HOST_ARCH), s390x))   
   | -m32=-m31   
   | -else   
   | -m32=-m32   
      
   In the non-s390x branch (affecting amd64), the m32 variable is no longer   
   assigned. It remains being used though.   
      
   | -endif   
   |  endif   
   | ~   
   | -ifneq (,$(filter s390x, $(DEB_HOST_ARCH)))   
   | -else   
   |  ifneq (,$(filter $(DEB_HOST_ARCH), $(64-ARCHS)))   
   |  EXTRA_INSTALL=install64   
   |  EXTRA_BUILD=build64-stamp   
   | @@ -62,7 +54,6 @@   
   |  m64=-m64   
   |  endif   
   |  endif   
   | -endif   
   | ~   
   |  N32-ARCHS=mips mipsel   
   |  ifneq (,$(filter $(DEB_HOST_ARCH), $(N32-ARCHS)))   
      
   This is an unfortunate mistake originating from Aurelien's patch for   
   s390 removal. Shit happens. Here is a fix.   
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1125669#5   
      
   --- a/debian/rules   
   +++ b/debian/rules   
   @@ -42,6 +42,7 @@   
    ifneq (,$(filter $(DEB_HOST_ARCH), $(32-ARCHS)))   
    EXTRA_INSTALL=install32   
    EXTRA_BUILD=build32-stamp   
   +m32=-m32   
    endif   
      
    ifneq (,$(filter $(DEB_HOST_ARCH), $(64-ARCHS)))   
      
   Helmut   
      
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