--- makefile.orig	1996-01-18 11:42:36.000000000 +0100
+++ makefile	2011-06-24 19:56:53.000000000 +0200
@@ -50,15 +50,16 @@
 # -DUSE_SELECT to use select() system call
 # -DUSE_NBIO   to use non-blocking read()
 
-CFLAGS= -O -DUNIX -DPORTABLE $(BYTEORDER)
+PREFIX	?=/usr/local
+CFLAGS+= -O -DUNIX -DPORTABLE $(BYTEORDER) -DPREFIX=\"$(PREFIX)\"
 
 # must set byte order for targets "sysv" and "bsd"
 # BYTEORDER= -DHIGHFIRST
 
-CC      = cc
-LD      = cc            # Link command
-LDFLAGS = 
-CPP     = $(CC) -E
+CC      ?= cc
+LD      ?= cc            # Link command
+LDFLAGS ?= 
+CPP     ?= $(CC) -E
 DBG     = -O
 RM      = rm -f
 
@@ -79,7 +80,7 @@
 	@echo "where <system> can be:"
 	@echo "	386bsd, 3b1, 3b1_asm, aix370, aix386, amix-68k-gcc, apollo,"
 	@echo "	apollo-gcc, atari,aux(*), aux-gcc, bsd, bsdgcc, convexos,"
-	@echo "	dgux, djgpp, encore, freebsd, hpux-68k(*), hpux-68k-ansi,"
+	@echo "	dgux, djgpp, encore, freebsd-{alpha,amd64,i386,sparc64}, hpux-68k(*), hpux-68k-ansi,"
 	@echo "	hpux-68k-gcc, hpux-pa(*), hpux-pa-ansi, hpux-pa-gcc,"
 	@echo "	hpux9-pa-ansi, irix, irix_asm, isc, isc_asm, linux, linux-68k,"
 	@echo "	machten, mach_386, mips-ultrix, netbsd, netbsd_68k, newsasm,"
@@ -171,10 +172,21 @@
 	$(MAKE) all CC=gcc LD=gcc \
 	CFLAGS="$(RSAINCDIR) -O2 -DHIGHFIRST -DUNIX -DPORTABLE -DIDEA32"
 
-freebsd:
+freebsd-i386:
 	$(MAKE) all LD="$(CC) -s" OBJS_EXT="_80386.o _zmatch.o" \
-	CFLAGS="$(RSAINCDIR) -O2 -fno-strength-reduce -DUNIX -DIDEA32 -DASM \
-	-DMAX_NAMELEN=255"
+	CFLAGS="-DPREFIX=\\\"$(PREFIX)\\\" $(RSAINCDIR) $(OS_CFLAGS) -DUNIX \
+		-DIDEA32 -DASM -DMAX_NAMELEN=255"
+
+freebsd-alpha: freebsd
+
+freebsd-amd64: freebsd
+
+freebsd-sparc64: freebsd
+
+freebsd:
+	$(MAKE) all LD="$(CC) -s" \
+	CFLAGS="-DPREFIX=\\\"$(PREFIX)\\\" $(RSAINCDIR) $(OS_CFLAGS) \
+		-DPORTABLE -DUNIX -DIDEA32 -DMAX_NAMELEN=255"
 
 386bsd:
 	$(MAKE) all CC=gcc LD=gcc OBJS_EXT="_80386.o _zmatch.o" \