On 05/24/2014 11:14 PM, Bruce Dubbs wrote:
Frans de Boer wrote:
FHS-thoughts
Reading File Hierarchy Standard (FHS) version 2.3 leaves a double
feeling regarding their standardization effort.
The next version is coming very slowly, but I'm monitoring it:
http://www.linuxbase.org/betaspecs/fhs/fhs.html
3.10. /lib<qual> : Alternate format essential shared libraries (optional)
This is commonly used for 64-bit or 32-bit support on systems which
support multiple binary formats, but require libraries of the same name.
In this case, /lib32 and /lib64 might be the library directories, and
/lib a symlink to one of them.
LFS is compliant in this area. In fact, I don't know where it is not
compliant, but I haven't done a comprehensive review lately.
-- Bruce
Ok, there is something brewing. Also, I was not clear enough, it seems,
but as one notice, I did not use a leading forward slash. As such I
tried to make it clear that I meant /lib as well as /usr/lib etc.
However, I can't say that the new version read more easy, but it is now
clear that:
/usr/lib is the machine default library
/usr/lib<qual> is used for an alternative binary format.
So an 64-bit machine does not have the /usr/lib64 anymore but can have a
/usr/lib32 directory. Also, /usr/lib64 is not a symlink either too. It
does not exist anymore on an 64-bit machine. This implies adding the
--libdir=/usr/lib at places where otherwise the /usr/lib64 directory is
being assumed by the current packages.
It is a bit disappointing that the former rules for the /lib and
/lib<qual> are still followed. It would be better to have the same rules
as used for /usr/lib etc. govern the root based structure too.
The confusing/contradicting chapter 6.1.5 is removed and replaced by
something unrelated.
So, looking at the current FHS-document it seems that LFS is mostly in
sync, except for the use of the /usr/lib64 symlink.
Bruce, thanks for your reply and like to hear your thoughts about it again.
Regards, Frans.
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