I just looked at this beta version. I see you've changed the build model to be more like g77. That's good; I can have my build script use some common code for g77 and gpc.
I notice that the patch file is named gcc-2.7.2.x.patch, though. In the g77 distribution, the suffix is ".diff", not ".patch". You might want to rename the file before the 2.1 release, to make it consistent with the g77 convention.
Also, in the file p/INSTALL, "seperate" should be spelled "separate".