On Wed, May 17, 2023 at 1:15 PM Larry Lemons via Fortran <fortran@gcc.gnu.org> wrote: > > Hello, > > I inherited a project where the customer wants us to re-build this ForTran > application with a more modern compiler. I did some research and found that > the GCC compiler probably has the most up to date compiler available, so we > decided to us 13.1.0 version of GCC. It has been about 40 years since I last > used Fortran, and very little at that time, and I didn't realize that there > were different libraries available based upon which compiler that was used at > the time. Apparently, from what I can tell from the research that I've done, > is it was last built using a MicroSoft compiler because of two of the > libraries that are used. From what I've read, Compaq had the compiler for a > time and now Intel has it. > > Anyway, since I was not the person who originally worked on this code, I am > not sure what functionality from the two libraries are being used, so I would > like to find the one or more libraries that are equivalent to the libraries > that are being used from the Intel libraries. From what I understand, the > libraries have been split up into more than one library since Intel took it > over, but all that I know is that the two libraries in question are DFPORT > and DFLIB. > > Can someone help me find the equivalent libraries in GCC that replace all of > the functionality in DFPORT and DFLIB or point me in a direction where I can > find this information? I've been trying to find it for the last 3 weeks and > have found a lot of things, but nothing I can use or that works. I've tried, > unsuccessfully, to use the Intel libraries, as well as trying to rebuild > them. If there aren't any equivalent libraries then I may need to work on > getting the Intel compiler added to the software list, which will take > another month or more.
Please read https://gcc.gnu.org/legacy-ml/fortran/2010-04/msg00314.html for about DFPORT and gfortran. For DFLIB, you might need to re-implement some of it. It looks like it was Windows only even. Thanks, Andrew Pinski > > So any help would be very much appreciated. > > Thank you, > > Larry M. Lemons > Sr. Software Developer
