Installing PHP 4.2.3

[nugent511]

I am installing PHP 4.2.3 with Mysql 4.0.11 and apache 2.0.44 on solaris 9. Apache and Mysql installed fine but I get this error when doing conifgure on PHP. Here is my config line.

./configure --with-mysql=/usr/local/mysql --with-apxs2=/usr/local/apache2/bin/apxs --with-zlib-dir=/usr/local/lib

Here is the error:
ld: warning: file /usr/local/mysql/lib/libmysqlclient.a(libmysql.o): wrong ELF class: ELFCLASS64

any help would be appreciated.

Thanks.