Hello!<br><br>I'm a newbie running 3.3, trying to install Boutell's gd application to generate jpegs and pngs on the fly.<br>It requires the jpeg-6b, zlib and the pnglib.<br>I've got them all installed.<br>I also installed gd successfully. The gddemo runs great and produces a png on the fly.<br>BUT!<br><br>Now I want to add the feature in one of my own apps. So I take Boutell's example, copy it into an empty file and try to compile it:<br>gcc -I. gdso-ch.c -o gdso -L. -L/usr/local/lib -L/usr/lib -lm -lgd -lpng -lz<br><br>but it generates the following error msg:<br>/var/tmp/ccp385941.o(.text+0x3d6b): undefined reference to `gdImageJpeg'<br><br>What am I doing wrong and do I really need all that above to compile it? Boutell's webpage tells me exactly the following:<br>"gd lets you create PNG or JPEG images on the fly. To use gd in your program, include the file gd.h, and link with the libgd.a library produced by "make libgd.a", under<br>Unix. Under other operating systems you will add gd.c to your own project."<br>(see <A HREF=" TARGET="_new"> in advance<br>I