--- ray/src/rt/Rmakefile	1991/06/07 10:04:23	1.47
+++ ray/src/rt/Rmakefile	1991/06/19 15:08:41	1.48
@@ -29,7 +29,7 @@ LIBDIR = /usr/local/lib/ray
 # Library routines:
 #
 LIBS = -lm
-COMPAT = bmalloc.o
+COMPAT = bmalloc.o erf.o
 
 #
 # Device drivers for rview (see also devtable.c):