--- makefile.FreeBSD.orig	Sat Nov  6 06:57:30 1999
+++ makefile.FreeBSD	Sat Apr 22 02:58:08 2000
@@ -36,9 +36,9 @@
 # FBCONFIG_2, which is set to the value of IMTOOLRC in the definition of
 # the CFLAGS macro below.)
 
-SAOBINDIR = $(ROOT)/usr/local/bin/
-SAOMANDIR = $(ROOT)/usr/local/man/manl/
-IMTRCDIR  = $(ROOT)/usr/local/lib/
+SAOBINDIR = $(ROOT)$(PREFIX)/bin/
+SAOMANDIR = $(ROOT)$(PREFIX)/man/manl/
+IMTRCDIR  = $(ROOT)$(PREFIX)/etc/
 
 IMTOOLRC  = $(IMTRCDIR)imtoolrc
 FIFO_I    = $(ROOT)/dev/imt1i
@@ -46,7 +46,7 @@
 FIFO_LN   = $(ROOT)/dev/imt1
 
 # Compiler specification.
-CC = cc
+CC ?= cc
 # Uncomment these two lines to compile with gcc (add any optimizers you wish).
 #CC = gcc -finline-functions -fdelayed-branch -fstrength-reduce
 #  Delayed branches could win big on RISC: many inner loops have branches
@@ -76,12 +76,12 @@
 # OFLAGS: compiler optimization/debug options.
 
 #OFLAGS = -g -DDEBUG
-OFLAGS = -O2 -m486 -pipe
+OFLAGS ?= -O2 -m486 -pipe
 
 # ADFLAGS: architecture-dependent floating point flags, etc.
 
 #ADFLAGS = -I/usr/openwin/share/include	# ATTENTION: OpenWindows users...
-ADFLAGS = -I/usr/X11R6/include
+ADFLAGS = -I${X11BASE}/include
 
 # Libraries that move about or may require special specification.
 #
@@ -89,7 +89,7 @@
 # usual link search path, i.e., it is not in /usr/lib, it may be necessary
 # to specify its path fully in XLIB.
 
-XLIB = -L/usr/X11R6/lib -lX11
+XLIB = -L${X11BASE}/lib -lX11
 #XLIB = -L/usr/X11R6/lib -lX11	# ATTENTION: OpenWindows users...
 #F77LIB = -lF77 -lI77 -lU77
 F77LIB = -lf2c