🚀 go-pugleaf

I'm having trouble installing gcc on SCO UNIX.  After 'making' it I go to
do 'make stage1' and then 'make CC=stage1/gcc CFLAGS="-g -O -Bstage1/ -msoft-flo
at"' and I get the following:

# make CC=stage1/gcc CFLAGS="-g -O -Bstage1/"
        stage1/gcc -g -O -Bstage1/ -I. -I. -I./config \
          -DSTANDARD_STARTFILE_PREFIX=\"/usr/local/lib/\" \
          -DSTANDARD_EXEC_PREFIX=\"/usr/local/lib/gcc-\" -c \
          `echo ./gcc.c | sed 's,^\./,,'`
gcc.c: In function main:
gcc.c:1723: `SIGHUP' undeclared (first use this function)
gcc.c:1723: (Each undeclared identifier is reported only once
gcc.c:1723: for each function it appears in.)
gcc.c:1727: `SIGPIPE' undeclared (first use this function)
*** Error code 1

Stop.
*** Error code 1

Stop.
# make CC=stage1/gcc CFLAGS="-g -O -Bstage1/ -msoft-float"
        stage1/gcc -g -O -Bstage1/ -msoft-float -I. -I. -I./config \
          -DSTANDARD_STARTFILE_PREFIX=\"/usr/local/lib/\" \
          -DSTANDARD_EXEC_PREFIX=\"/usr/local/lib/gcc-\" -c \
          `echo ./gcc.c | sed 's,^\./,,'`
gcc.c: In function main:
gcc.c:1723: `SIGHUP' undeclared (first use this function)
gcc.c:1723: (Each undeclared identifier is reported only once
gcc.c:1723: for each function it appears in.)
gcc.c:1727: `SIGPIPE' undeclared (first use this function)
*** Error code 1

Stop.
#




Any ideas?  I really want to get this up and running.  Thanks for any help.
Let me know if you need any more information.

                        Thanks,   Todd