The problem is solved.
Unpack gcc-2.95.2 to $(DJDIR)/gnu and rename it to gcc-2.952 . Get gcc2952s2.zip - by Andris pavenis@lanet.lv - from ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu and unpack it to the $(DJDIR)/gnu too. Cd $(DJDIR)/gnu/gcc-patch and run sh ./gcc-patch.sh . This made some changes to the source files and make some directories as is build.djg. Copy djbuild1.sh from the attachement to the directory build.djg and overwrite the old file.
Copy the p directory from the gpc-20000707.tar.gz to the $(DJDIR)/gnu/gcc-2.952/gcc and copy gcc-2.95.diff to gcc-2.95.2.diff in p/diffs.
makefiles and other required files. After this run sh ./djbuild1.sh pas and after building compiler run sh ./djbuild1.sh install.
Gpc, gpc1, gpcpp and libgpc.a are now fully functional on DJGPP.
David Kredba