r.tiff

Hi!
I'm trying to compile the programs r.in.tiff
and r.out.tiff under src.contrib/SCS/raster
and I get the following error :

/tele/grass/src.contrib/SCS/raster/r.tiff
  make -f OBJ.RS6000/make.rules

        /tele/grass/gmake4.1 -all
  SRC = /tele/grass/src
  CMD = /tele/grass/src/CMD
  HEADER = RS6000
  ARCH = RS6000
  GISBASE = /jalmera/grass/RS6000
  VERSION = 4.1 Spring 1993 Update package 2
#################################################################
/tele/grass/src.contrib/SCS/raster/r.tiff/cmd
  make -f OBJ.RS6000/make.rules

        rm -f OBJ.RS6000/r.out.tiff.o
        cc -O -I../libtiff -I/tele/grass/src/include -DUSE_TERMIO -c r.out.tiff.c
"r.out.tiff.c", line 31.9: 1506-007 (S) Struct or union rasterfile is undefined.
"r.out.tiff.c", line 98.2: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 99.2: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 100.2: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 102.3: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 103.25: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 104.25: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 106.25: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 107.25: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 109.15: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 148.26: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 155.16: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 155.28: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 172.22: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 176.20: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 181.23: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 185.23: 1506-045 (S) Undeclared identifier h.
"r.out.tiff.c", line 193.4: 1506-056 (S) Break statement cannot be placed outside a while, do, for, or switch statement.
"r.out.tiff.c", line 196.19: 1506-045 (S) Undeclared identifier h.
make: 1254-004 The error code from the last command is 1.

Make Quitting.

Any help?
Thanks

Agus