configure: error: libpng.(a|so) not found.

i am setting up snort,apache,php,mysql,and acid. on rh9.
i ran

[root@IDS php-4.3.3]# ./configure --prefix=/www/php --with-apxs2=/www/bin/apxs --with-config-file-path=/www/php --enable-sockets --with-mysql=/usr/local/mysql --with-zlib-dir=/usr/local --with-gd

i got this at the end of the output

If configure fails try --with-jpeg-dir=<DIR>
configure: error: libpng.(a|so) not found.

what dir do i put in for the --with-jpeg-dir=<DIR>

I too am having a bad time as i am stuck with the same problem i would be very greatful if you have come up with the answer

i did try it with this but it did not work:-
/configure --x-libraries=/usr/lib/ --prefix=/www/php --with-apxs2=/www/bin/apxs --with-config-file-
path=/www/php --enable-sockets --with-mysql=/usr/local/mysql --with-zlib-dir=/usr/local --with-gd --with-jpeg-dir=/usr/lib

Did you guys install libpng first? Also, don't forget zlib and libjpeg.

I have fixed it now i found out that i needed the lib files with devel in it, and after installing that it worked.

I am running into this same problem and I'm afraid I don't know what you mean by the . Could you elaborate?

clarification:

each of the libraries (libjpeg, libpng and zlib) have analogous development files

ie install libjpeg-devel-6.2.xx.rpm as well!