Apache and subversion and libz.so.1

[ditto]

This is on a CentOS 6.x 64bit server. I am running Apache subversion 1.7.8 without any problems. It is installed from source. However, today I upgraded to Apache subversion 1.7.9, and there is some problems.

First: When upgrading Apache subversion from source and doing make, I get this:

WARNING: You have chosen to compile Subversion with a different
         compiler than the one used to compile Apache.

    Current compiler:      gcc
   Apache's compiler:      gcc -std=gnu99

This could cause some problems.

Then I continue to install/upgrade Apache subversion. It all seems to go well, and everything seems to work. However after the upgrade when testing commands, I get this:

[root@server /]# svn --version
svn: /usr/local/lib/libz.so.1: no version information available (required by /usr/lib/libsvn_delta-1.so.0)
svn, version 1.7.9 (r1462340)
   compiled Apr  6 2013, 05:58:29

However on a server that I have not yet upgraded, wich is running Apache subversion 1.7.8, I do not get that "no version information available line ...".

Is this a problem? If so, what can I do abouit it?

 

[ditto]

By the way, here is all the commands I do to upgrade apache subversion from 1.7.8 to 1.7.9 from source (wich give the problem described in previous post, I do not have that problem in version 1.7.8):

cd /root
wget http://apache.komsys.org/subversion/subversion-1.7.9.tar.gz
tar xzf subversion-1.7.9.tar.gz
cd subversion-1.7.9
mkdir sqlite-amalgamation
cd sqlite-amalgamation
wget http://www.sqlite.org/2013/sqlite-autoconf-3071601.tar.gz
tar xzf sqlite-autoconf-3071601.tar.gz
mv sqlite-autoconf-3071601/sqlite3.c .
rm -rf sqlite-*
cd ..
./configure --prefix=/usr --with-ssl --with-expat=/usr/include:/usr/lib64:expat --with-apxs=/usr/sbin/apxs --with-apr=/usr/bin/apr-config
make clean
make
make install
ldconfig
service httpd restart
cd /root
rm -rf subversion-*

Please advice/help about the problems in my first post. I have not found any solution by searching. Thanks!