From: "John M. Aldrich" Newsgroups: comp.os.msdos.djgpp Subject: Re: Allegro2.2 vs Allegro3.0? Date: Fri, 03 Apr 1998 18:39:22 -0500 Organization: Two pounds of chaos and a pinch of salt. Lines: 32 Message-ID: <3525732A.64F2@cs.com> References: <352498F6 DOT FB0E25AF AT geocities DOT com> NNTP-Posting-Host: ppp204.cs.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk RicMK wrote: > > I have been using Allegro2.2 for a while and it works great. What I > want to know is wether or not it is worth it to upgrade to Allegro3.0? > Will I have to change my old code? Do I have to uninstall Allegro2.2? > Could somebody please point me in the right direction :) Allegro 3.0 has substantially improved features over Allegro 2.2, particularly in 3D graphics code and high-color support. Shawn has also changed the way in which Allegro installs itself; it goes into a standard part of the DJGPP tree now. You can unzip it without overwriting any part of your 2.2 files, but when Allegro builds it copies its header and library into the DJGPP include and lib directories, overwriting the ones that you currently have. As for backwards compatibility, you should be able to compile old code just fine with the new version of Allegro. The only gotcha to look for is that the initial release of Allegro 3.0 didn't take into account the new file structure of gcc 2.8.0, so it would claim that DJGPP wasn't installed when you tried to build it. The latest zipfile on SimTel, dated March 15, 1998, has the necessary fix. hth -- --------------------------------------------------------------------- | John M. Aldrich | "A committee is a life form with six | | aka Fighteer I | or more legs and no brain." | | mailto:fighteer AT cs DOT com | | | http://www.cs.com/fighteer | - Lazarus Long | ---------------------------------------------------------------------