Issues building BBC using GAR on RedHat 8.0

Hi all:

Attempting to build Gar STABLE fetched today on RedHat 8.0.  I
have two problems, shown below.  I know I could probably put together
a chroot solution, but I'm trying to build using standard RedHat tools
because I'm trying to actually construct a custom distro for a project
using GAR.  Should I expect Gar to build BBC on RedHat?

My problems are (from a freshly fetched STABLE):

   * make deep-checksums doesn't seem to do anything.  Here is a snippet:

	  make[1]: Entering directory `/home/bwithrow/gar/devel/ccache'
	  make[1]: Leaving directory `/home/bwithrow/gar/devel/ccache'
	  make[1]: Entering directory `/home/bwithrow/gar/disk/cdrtools'
	  make[1]: Leaving directory `/home/bwithrow/gar/disk/cdrtools'
	  make[1]: Entering directory `/home/bwithrow/gar/X11/XFree86'
	  make[2]: Entering directory `/home/bwithrow/gar/devel/flex'
	  make[2]: Leaving directory `/home/bwithrow/gar/devel/flex'
	  make[2]: Entering directory `/home/bwithrow/gar/devel/bison'
	  make[2]: Leaving directory `/home/bwithrow/gar/devel/bison'
	  make[2]: Entering directory `/home/bwithrow/gar/devel/imake'
	  make[2]: Leaving directory `/home/bwithrow/gar/devel/imake'
	  make[2]: Entering directory `/home/bwithrow/gar/devel/glibc'
	  make[3]: Entering directory `/home/bwithrow/gar/devel/gcc-primitives'
	  make[3]: *** No rule to make target `deep-checksums'.  Stop.
	  make[3]: Leaving directory `/home/bwithrow/gar/devel/gcc-primitives'

   * make build fails building libgcc2:

       /home/bwithrow/gar/devel/gcc/work/build.d/i386-pc-linux-gnu/gcc/xgcc -B/home/bwithrow/gar/devel/gcc/work/build.d/i386-pc-linux-gnu/gcc/ -B/home/bwithrow/garbuild/i386-pc-linux-gnu/bin/ -I/home/bwithrow/garbuild/i386-pc-linux-gnu/include -O2  -DCROSS_COMPILE -DIN_GCC     -Os -I//home/bwithrow/garbuild/include -L//home/bwithrow/garbuild/lib  -I./include  -fPIC -g1 -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I../../gcc-2.95.3/gcc -I../../gcc-2.95.3/gcc/config -I../../gcc-2.95.3/gcc/../include -c -DL${name} \
	    ../../gcc-2.95.3/gcc/libgcc2.c -o ${name}.o; \
       if [ $? -eq 0 ] ; then true; else exit 1; fi; \
       i386-pc-linux-gnu-ar rc tmplibgcc2.a ${name}.o; \
       rm -f ${name}.o; \
     done
     _muldi3
     ../../gcc-2.95.3/gcc/libgcc2.c:41: stdlib.h: No such file or directory
     ../../gcc-2.95.3/gcc/libgcc2.c:42: unistd.h: No such file or directory
     make[10]: *** [libgcc2.a] Error 1

Any suggestions would be appreciated.