ID: 19319
Updated by: rasmus@php.net
Reported By: vlb@gene.com
Status: Bogus
Bug Type: *Configuration Issues
Operating System: Tru64 Unix (n/a)
PHP Version: 4.2.2
New Comment:
"Standard ld path" from my original statement also includes directories
that you point configure at for other stuff. If you want full control
you need to put these libraries into their own directories and not lump
them all into /usr/local/lib and expect PHP to sort out your mess.
Previous Comments:
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[2002-09-10 10:59:48] vlb@cfcl.com
>If you do have a version on your standard path, you can be
pretty sure that it is the one that gets used no matter
what.
That's actually NOT true unless the one on the standard
path is a .so and the "new" one (the one you want) is a .a.
Trust me; I've done a LOT of research into this lately :(
------------------------------------------------------------------------
[2002-09-10 10:59:13] rasmus@php.net
The configure script does check one at a time, but on the final link we
have to put all the -L entries in there. You more than likely have
other libraries that live in /usr/local/lib so they end up adding a
-L/usr/local/lib to the link line. This happens with every package I
know of and is just the way stuff works.
------------------------------------------------------------------------
[2002-09-10 10:58:04] vlb@gene.com
>As with any other library, if you are going to have >multiple versions, make sure none of them are on the>standard LD path so you have full control over what gets>used.
But that's exactly the point! The librarys is _not_ in the
standard path and I _exect_ full control. I specified the
location in my --with-imap=DIR configure option.
I AM NOT GETTING THAT CONTROL
I'm not getting it because PHP is being linked with ALL
libraries at once at that means there could be conflicts.
In my case, the --with-kerberos=DIR location is overriding
my --with-imap=DIR location.
As you point out ... "if you're going to have multiple
versions...you...have full control".
Well, I expect full control and I'm not getting what I
expect. That's rather the definition of a bug, isn't it?
:-)
------------------------------------------------------------------------
[2002-09-10 10:52:57] vlb@gene.com
Given that PH claims to support configure options of the form
--with-foo=DIR
where DIR is the location into which foo and its components (e.g. .a or
.h files) have been installed
THEN the user has a reasonable expectation that the components of foo
(as fiund under DIR) will actually be used in compiling and linking the
components of PHP.
If this is not possible, then PHP should not claim to have used the
files from DIR.
> Don't have many versions in there. Simple as that.
The reason that ld has a specific search order, modifiable by the
ordering of -Ldir flags is designed to handle just this situation.
Systems with multiple copies (e.g. one in production, one in test) of
libraries, headers, and binaries, are not unusual.
Either link in the libraries specified by
--with-foo=DIR
one at a time to ensure that you get the correct one
or figure out a way to have phpinfo tell the truth
or document the bejeebers out of this.
------------------------------------------------------------------------
[2002-09-10 10:41:38] rasmus@php.net
There is no better way to do it without a version() type of function in
c-client. It's a best-guess and is usually right. As with any other
library, if you are going to have multiple versions, make sure none of
them are on the standard LD path so you have full control over what
gets used. If you do have a version on your standard path, you can be
pretty sure that it is the one that gets used no matter what. That's
just how stuff works.
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