My Configure Command doesn't say anything about jpg, nor gif/png, but I can see gif/png support in the output of phpinfo().

I built PHP with --with-gd, but only GIF Support and PNG Support are in the output of phpinfo(), how do I enable JPEG Support?

UPDATE

I got this problem when compiling :

Sorry, I cannot run apxs.  Possible reasons follow:

1. Perl is not installed
2. apxs was not found. Try to pass the path using --with-apxs2=/path/to/apxs
3. Apache was not built using --enable-so (the apxs usage page is displayed)

The output of /usr/local/apache2/bin/apxs follows:
cannot open /usr/local/apache2/build/config_vars.mk: No such file or directory at /usr/local/apache2/bin/apxs line 218.

What should I do now?