openssh bugs - Sep 2008 - [Bug 1519] New: zlib version check is fake in the configure script. installation failure.

https://bugzilla.mindrot.org/show_bug.cgi?id=1519

           Summary: zlib version check is fake in the configure script.
                    installation failure.
           Product: Portable OpenSSH
           Version: 5.1p1
          Platform: ix86
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: Build system
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: re.bmgr at gmail.com


It seems like whatever the version of zlib is, the message "zlib too
old" which
precedes the installation failure always appears if the option
--without-zlib-version-check
 is not used while calling the configure script. 

Reminder : Openssh needs at least zlib version 1.2.3.

If someone checks the configure script then check the line 10672 :
one can see that the script checks if the variable $zlib_check_nonfatal
is set
:
[line10672] if test -z "$zlib_check_nonfatal" ; then
    - If the variable $zlib_check_nonfatal is set then "zlib too old"
does not
happen.

The big problem is that the only other place where $zlib_check_nonfatal
could
be set
is at line 10598 :
[line 10598] zlib_check_nonfatal=1

which ONLY happens if --without-zlib-version-check is used.


May be my mistake... so if someone could check that and have a correct
zlib
version check
that would be nice.

Best regards.

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https://bugzilla.mindrot.org/show_bug.cgi?id=1519


Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |djm at mindrot.org




--- Comment #1 from Damien Miller <djm at mindrot.org>  2008-09-01
20:22:58 ---
Your analysis is incorrect - the test for $zlib_check_nonfatal checks
whether it is blank or not. An unset shell variable is equivalent to a
blank one, so this is fine.

I'm not sure I understand what your problem is: are you saying that
configure misdetects your zlib as too old? If so you will need to
provide more information, such as the version of zlib you have
installed and the generated config.log.

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Rod B. <re.bmgr at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




--- Comment #2 from Rod B. <re.bmgr at gmail.com>  2008-09-01 20:58:48 ---
Ok, I try to explain the problem.

The point is that the configure script misdetects my non-local zlib
version.

I have zlib version 1.2.3 installed /usr/lib /lib /usr/include
and I have zlib version 1.2.1 in /usr/local/lib /usr/local/include

Sorry for reporting it as a bug but the version detected by the
configure script
is version 1.2.1. I have just taken off  /usr/local/include/zlib.h and
the configure
script works perfectly.

Is that normal that the configure script checks a local version in 
/usr/local/include/zlib.h against the root system-wide version in
/usr/include/zlib.h ?
It must be my mistake with my environment definition.

I am sorry I haven't seen the full "if" condition line 10696 of
the
configure script
which certainly needs some smarter indentation.

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED




--- Comment #3 from Damien Miller <djm at mindrot.org>  2009-02-23
13:36:19 ---
Close bugs fixed/reviewed for openssh-5.2 release

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