Red Hat Bugzilla – Bug 228171
multi-lib conflict
Last modified: 2007-11-30 17:11:56 EST
hspell - 1.0-4.fc6.i386 Conflicts: 8 File conflict in: /usr/bin/hspell /usr/share/hspell/hebrew.wgz /usr/share/hspell/hebrew.wgz.prefixes /usr/share/hspell/hebrew.wgz.desc /usr/share/hspell/hebrew.wgz.stems Packages with the same files: hspell - 1.0-4.fc6.x86_64 The files in /usr/share ought to be arch-independent. Why do they differ between i386 and x86_64?
*** Bug 228170 has been marked as a duplicate of this bug. ***
I compared the two directories and noticed that the difference is only in one character per file: /tmp/h$ hexdump i386/hebrew.wgz|head -1 0000000 8b1f 0008 c96c 44b0 0302 5dcc 9adb baa2 /tmp/h$ hexdump 64/hebrew.wgz|head -1 0000000 8b1f 0008 c981 44b0 0302 5dcc 9adb baa2 both files decompress well in both architectures. could it be that the gzip produces a different file (different magic number?) according to its architecture? P.S. I don't know what multi-lib is, and what is the relevance of this bug's name.
Taking a look at RFC 1952 (GZIP File Format) http://www.gzip.org/zlib/rfc-gzip.html , I understand that the differing 5th character is part of the Modification Time of the original file. I suspect that the reason for the difference is that the two RPMs are packaged in different times: ls --full-time 64/h i386/h -rw-r--r-- 1 danken danken 1026227 2007-02-11 09:05:23.000000000 +0200 64/h -rw-r--r-- 1 danken danken 1026227 2007-02-11 09:05:58.000000000 +0200 i386/h
The file could be compressed with option -n to be the same. > P.S. I don't know what multi-lib is, and what is the > relevance of this bug's name. multi-lib is the concept that makes it possible to install libraries built for a compatible hardware architecture alongside the libraries for the native hardware, because both can used by corresponding executables. For example, on x86_64 the native libs are installed into /usr/lib64, while the compatible ix86 libs are installed into /usr/lib. That is the reason why %_libdir expands to different values on these systems. This also makes it possible to build ix86 binaries on a x86_64 systems, because you only need to tell the compiler which architecture to build for and install the needed -devel packages for that architecture. Due to that, ix86 -devel rpms and their dependencies are made available in the x86_64 repository. In the context of this ticket, users of x86_64 hardware, who want to or need to install hspell for i386 (as a dependency of some i386 rpms), could not have hspell for x86_64 installed already, since both packages conflict in these data files.