Build mod_jk for centos

I reduced it to a script:

#!/bin/bash
# Build the mod_jk apache tomcat connector from src tarball and install it
#
set -x
srcball=$1
if [ -z "$srcball" ]; then
echo The source tarball was not given - expected something like \"tomcat-connectors-versionxxx-src\" to be passed as parameter
exit 1
fi

pushd /tmp
curl http://mirror.rmg.io/apache//tomcat/tomcat-connectors/jk/$srcball.tar.gz -O

if [ ! -f /tmp/$srcball.tar.gz ]
then
echo $srcball.tar.gz not found in /tmp/. Couldn\'t build mod_jk
exit 2
fi

tar xvf $srcball.tar.gz
cd $srcball/native
./configure --with-apxs=/usr/sbin/apxs
make
cp ./apache-2.0/mod_jk.so /etc/httpd/modules/
popd

Sadly, the page whence I got my info has shuffled off its mortal coil and departed this interweb.