apxs invalid path error, installing mod_jk

using apache 1.3
../configure --with-apxs=/usr/local/www/bin/apxs (like the docs)

in the .configure this is where it dies.

if ${TEST} "${apxs_support}" = "false" ; then
AC_MSG_RESULT(could not find ${APXS})
AC_MSG_ERROR(You must specify a valid --with-apxs path)
fi

it prints out:
checking for perl... /usr/local/bin/perl
could not find /usr/local/www/bin/apxs
configure: error: You must specify a valid --with-apxs path
w






More of the code from config:
if ${TEST} ${find_apxs} ; then
AC_MSG_RESULT([need to check for Perl first, apxs depends on it...])
AC_PATH_PROG(PERL,perl,$PATH)dnl

if ${TEST} ${find_apxs} ; then
APXS=${withval}
else
AC_PATH_PROG(APXS,apxs,$PATH)dnl
fi

if ${TEST} -n "${APXS}" ; then
dnl Seems that we have it, but have to check if it is OK first
if ${TEST} ! -x "${APXS}" ; then
AC_MSG_ERROR(Invalid location for apxs: '${APXS}')
fi

${APXS} -q PREFIX >/dev/null 2>/dev/null || apxs_support=false

if ${TEST} "${apxs_support}" = "false" ; then
AC_MSG_RESULT(could not find ${APXS})
AC_MSG_ERROR(You must specify a valid --with-apxs path)
fi

dnl apache_dir and apache_include are also needed.
apache_dir=`$APXS -q PREFIX`
apache_include="-I`$APXS -q INCLUDEDIR`"