To build the CFITSIO library on Mac OS-X systems, follow the instructions for Unix platforms given in the CFITSIO User's Reference Guide (cfitsio.doc). To build the MacOS port on classic Mac OS-9 or earlier: 1. Un binhex and unstuff cfitsio_mac.sit.hqx 2. put CFitsioPPC.mcp in the cfitsio directory. 2. Load CFitsioPPC.mcp into CodeWarrior Pro 5 and make. This builds the cfitsio library for PPC. There are also targets for both the test program and the speed test program. To use the MacOS port you can add Cfitsio PPC.lib to your Codewarrior Pro 5 project. Note that this only has been tested for the PPC. It probably won't work on 68k macs. Also note that the fortran bindings aren't included. I haven't worked with the codewarrior f2c plugin so I don't know how these would work. If one is interested, please write and I can look into this. bruce.oneel@obs.unige.ch Modifications... 10/22/98: pwilson@sewanee.gsfc.nasa.gov New files added for project. Converted to CodeWarrior Pro 3. The speed test program does not run... complains about a missing library? 11/09/98: pwilson@sewanee.gsfc.nasa.gov Fixed speed test problem thanks to Tom Andersen. 07/17/00: pwilson@milkyway.gsfc.nasa.gov Updated to CodeWarrior Pro 5 and CFITSIO 2.037.