php won't finish 'make' in redhat 7.3, php 4.3.3

System: PHP 4.3.3 on redhat 7.3, i686, Apache 1.3.27 Make won't find the libltdl.la library, which causes it to die. I've looked all over the net, pretty carefully, and can't find a solution. The truth is, libltdl.la does not exist on my server, though libltdl.so.3.1.0 and lbltdl.so.3 both do exist, even in the path that make wanted them in. Here's what make says: grep: /usr/lib/libltdl.la: No such file or directory /bin/sed: can't read /usr/lib/libltdl.la: No such file or directory libtool: link: `/usr/lib/libltdl.la' is not a valid libtool archive make: *** [libphp4.la] Error 1 Any assistance, even a push in the right direction, is greatly appreciated. Austin