httpd-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jeff Trawick <>
Subject Re: [users@httpd] undefined symbol: apr_crypto_init
Date Fri, 11 Apr 2014 00:07:53 GMT
On Thu, Apr 10, 2014 at 3:33 PM, David Benfell <>wrote:

> On Thu, Apr 10, 2014 at 02:14:02PM -0600, Jeff Trawick wrote:
> >    On Thu, Apr 10, 2014 at 2:05 PM, David Benfell
> >    <[1]> wrote:
> >
> >    On Thu, Apr 10, 2014 at 01:38:00PM -0600, Eric Covener wrote:
> >    > On Thu, Apr 10, 2014 at 4:35 AM, David Benfell
> >    > <[2]> wrote:
> >    > > apr_crypto_init
> >    >
> >    Maybe you built with the up-to-date apr-util (so httpd or some module
> >    thinks apr_crypto_init() exists) but an older level apr-util
> >    (system-provided?) is being used when you try to start httpd.
> >    As a test, try
> >    export LD_LIBRARY_PATH=/path/to/new/httpd/lib
> >    (or wherever you installed new apr-util)
> >    before starting httpd and see if that works.
> >
> Progress of a sort: There was definitely some cruft lying about from a
> previous 2.2 build. I deleted it. I set the environment variable
> LD_LIBRARY_PATH=/usr/lib64/apr-util-1 and apachectl start at least
> starts the server (I have other problems but I think they're
> related to php).

That apr-util-1 subdirectory is only used when loading apr-util extensions,
and I thought apr-util could find those on its own once libaprutil-1 was
loaded (but I may be wrong there).

LD_LIBRARY_PATH generally is updated to point to the directory
where resides (when rpath can't help).

But I guess that on your platform /usr/lib64 is in the default library
search path, so you shouldn't need LD_LIBRARY_PATH at all.

Without the old cruft, is your LD_LIBRARY_PATH setting actually necessary?

I unfortunately missed your clear, earlier statement that you are using the
provided RPM specs which install apr + apr-util as system libraries.  IMO
that is not a good idea for most people, in case you want to install
arbitrary software from your system package repository and have it use the
apr + apr-util it is built with and at the same time have your httpd use
the apr + apr-util you selected for that particular purpose.  I don't use
the RPM builds myself, never install into system directories, and don't
really know what the considerations are.  Sorry.

> /etc/init.d/httpd start does not, even when I set the environment
> variable in the script right before the line that starts the daemon.

Same error as before, or something different?  Can you copy and paste the
exact message?

I don't think your current LD_LIBRARY_PATH actually changes anything.

> I'm thinking I ought to be able to substitute apachectl for the start
> script with a symbolic link. Would this work? Any reason I shouldn't?

Where did you get /etc/init.d/httpd?  Is that from an RPM build you did of
httpd 2.4?

> Thanks!
> --
> David Benfell <>
> See if you don't understand the
> attachment.

Born in Roswell... married an alien...

View raw message