UPGRADING UNIX USERS: READ THIS FIRST! Modern versions of gd install by default to /usr/local/lib and /usr/local/include. If you already have an older version of gd in /usr/lib and /usr/include, you may wish to use:./configure --prefix=/usrTo ensure that your new installation overwrites the old.GIF support has been restored in gd 2.0.28 and above. The well-known patents on LZW compression held by Unisys have expired in all countries. British Telecom and IBM may hold related patents but have never chosen to require royalties for GIF applications, to the best of my knowledge. I am not a lawyer and cannot give legal advice regarding this issue. PNG remains a superior format especially if lossless truecolor images are needed.
When building from soruce, gd 2.0.36 requires that the following libraries also be installed, in order to produce the related image formats. The win32 binary release (bgd) already contains the appropriate libraries. You may skip libraries associated with formats you do not use:
libpng (see the libpng home page), if you want PNG
zlib (see the info-zip home page), if you want PNG
jpeg-6b or later, if desired (see the Independent JPEG Group home page), if you want JPEG
If you want to use the TrueType font support, you must also install the FreeType 2.x library, including the header files. See the Freetype Home Page, or SourceForge. No, I cannot explain why that site is down on a particular day, and no, I can't send you a copy.
If you want to use the Xpm color bitmap loading support, you must also have the X Window System and the Xpm library installed (Xpm is often included in modern X distributions). Most of the time you won't need Xpm.
Please read the documentation and install the required libraries. Do not send email asking why
png.his not found. Do not send email asking whylibgd.sois not found, either. See the requirements section for more information. Thank you!