GISGEN compilation

[DUNN JEREMY SIMON]

Hello, 

I have a problem in compiling Grass4.1 on my DEC 3000 800, I get the following 
error, how can I get around this ?

GISGEN: src/mapdev/diglib - Mon Aug 8 09:38:28 MDT 1994

#################################################################
/data/lyorn/MODELS/Grass4.1/src/src/mapdev/diglib
  make -f OBJ.GIS/make.rules 

rm -f OBJ.GIS/clock.o
cc -O  -I/data/lyorn/MODELS/Grass4.1/src/src/include -DUSE_TERMIO -c clock.c
/usr/lib/cmplrs/cc/cfe: Error: clock.c, line 5: redeclaration of 'time'; previous declaration at line 117 in file '/usr/include/time.h'
 long time();
 -----^
/usr/lib/cmplrs/cc/cfe: Error: clock.c, line 5: Incompatible function return type for this function
 long time();
 ---------^
*** Exit 1
Stop.
GISGEN failure at STEP: src/mapdev/diglib


Jeremy