outputting images

[Anon]

I am using the PNG format to output images with PHP. I get an error in PHP that says the imagepng() function is undefined. I have built GD, zlib, libjpeg, FreeType, and libpng like the tutorial I saw on WebMonkey said to. I built PHP 4.2.0 with gd, libjpeg, and zlib like the tutorial said to also. The only thing I got were some warnings about "identifier already declared here: ushort" and some other "u" variables (3 total). This occurred in a bunch of files, but I'm not sure exactly which ones. GD shows up when I do phpinfo().

So whats up?

[Anon]

Did you configure?

--with-png-dir=/path/to/libpng

What I would suggest is posting your compile time options that are listed in your phpinfo page.

[undertow]

No, I didn't have libpng, I thought it was included into GD when I built GD. I'm rebuilding PHP with libpng now; so thanks for the tip.

My only other compile-time options were with-apxs and with-mysql.