I haven't followed gnustep in a long time, but I thought renaissance was a library that was an alternative to NIB files, with an XML format. Back when I wrote

I haven't followed gnustep in a long time, but I thought renaissance was a library that was an alternative to NIB files, with an XML format. Back when I wrote some small apps, it was very easy to target Mac with the GNUstep makefile package. That could build on Mac without any extra work on the build side. I would sprinkle a lot with #ifdef __APPLE__ when the APIs differ, on a case by case basis. A lot of things (most?) work on both without modification, it just depends how new the API is.