diff --git a/benchmarks/iozone/Makefile b/benchmarks/iozone/Makefile
index 0d44409543f..8994ebca0c2 100644
--- a/benchmarks/iozone/Makefile
+++ b/benchmarks/iozone/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.26 2001/02/10 00:08:36 brad Exp $
+# $OpenBSD: Makefile,v 1.27 2001/02/26 02:19:30 brad Exp $
 
 DISTNAME=	iozone3_51
 PKGNAME=	iozone-3.51
@@ -16,6 +16,8 @@ PERMIT_PACKAGE_FTP=	Yes
 PERMIT_DISTFILES_CDROM=	Yes
 PERMIT_DISTFILES_FTP=	Yes
 
+MAKE_ENV=	CC="${CC}"
+
 FLAVORS=	threads
 FLAVOR?=
 
diff --git a/benchmarks/iozone/patches/patch-makefile b/benchmarks/iozone/patches/patch-makefile
new file mode 100644
index 00000000000..1e441e1b25b
--- /dev/null
+++ b/benchmarks/iozone/patches/patch-makefile
@@ -0,0 +1,43 @@
+--- makefile.orig	Sun Feb 25 20:56:28 2001
++++ makefile	Sun Feb 25 20:59:25 2001
+@@ -248,7 +248,7 @@
+ #
+ 
+ openbsd: iozone_openbsd.o libbif.o
+-	cc -O -Dunix -Dbsd4_4 -DHAVE_ANSIC_C -DNO_THREADS -DSHARED_MEM \
++	$(CC) $(CFLAGS) -Dunix -Dbsd4_4 -DHAVE_ANSIC_C -DNO_THREADS -DSHARED_MEM \
+ 		iozone_openbsd.o libbif.o -o iozone
+ 
+ #
+@@ -256,7 +256,7 @@
+ #
+ 
+ openbsd-threads: iozone_openbsd-threads.o libbif.o
+-	cc -O -pthread -Dunix -Dbsd4_4 -DHAVE_ANSIC_C \
++	$(CC) $(CFLAGS) -pthread -Dunix -Dbsd4_4 -DHAVE_ANSIC_C \
+ 		iozone_openbsd-threads.o libbif.o -o iozone
+ 
+ #
+@@ -570,18 +570,18 @@
+ 	@echo ""
+ 	@echo "Build iozone for OpenBSD"
+ 	@echo ""
+-	cc -c -O -Dunix -Dbsd4_4 -DHAVE_ANSIC_C -DNO_THREADS \
++	$(CC) -c $(CFLAGS) -Dunix -Dbsd4_4 -DHAVE_ANSIC_C -DNO_THREADS \
+ 		-DSHARED_MEM iozone.c -o iozone_openbsd.o
+-	cc -c -O -Dunix -Dbsd4_4 -DHAVE_ANSIC_C -DNO_THREADS \
++	$(CC) -c $(CFLAGS) -Dunix -Dbsd4_4 -DHAVE_ANSIC_C -DNO_THREADS \
+ 		-DSHARED_MEM libbif.c -o libbif.o
+ 
+ iozone_openbsd-threads.o: iozone.c libbif.c
+ 	@echo ""
+ 	@echo "Build iozone for OpenBSD with threads"
+ 	@echo ""
+-	cc -c -O -pthread -Dunix -Dbsd4_4 -DHAVE_ANSIC_C \
++	$(CC) -c $(CFLAGS) -pthread -Dunix -Dbsd4_4 -DHAVE_ANSIC_C \
+ 		iozone.c -o iozone_openbsd-threads.o
+-	cc -c -O -pthread -Dunix -Dbsd4_4 -DHAVE_ANSIC_C \
++	$(CC) -c $(CFLAGS) -pthread -Dunix -Dbsd4_4 -DHAVE_ANSIC_C \
+ 		libbif.c -o libbif.o
+ 
+ iozone_OSFV3.o: iozone.c libbif.c