$OpenBSD: patch-makefile,v 1.2 2013/04/18 22:35:36 jturner Exp $
--- makefile.orig	Sun Apr 14 16:08:33 2013
+++ makefile	Wed Apr 17 13:33:14 2013
@@ -18,7 +18,7 @@
 #AR= echo
 
 # Unix, generally
-CC = gcc -fpic -pedantic
+CC ?= gcc -fpic -pedantic
 DEBUG=-g -Wall -Wno-char-subscripts -O
 Osuf=o
 SOsuf=so
@@ -30,10 +30,10 @@ RM= -rm -f
 AR= ar crs
 
 # Linux
-LD = gcc
+LD ?= gcc
 LDFLAGS = -shared
 DEBUG=-g -Wno-char-subscripts -O
-SYS_LIBS= -ldl -lm
+SYS_LIBS= -lm
 PLATFORM_FEATURES= -DSUN_DL=1
 
 # Cygwin
@@ -77,7 +77,7 @@ $(LIBTARGET): $(OBJS)
 	$(LD) $(LDFLAGS) $(OUT) $(OBJS) $(SYS_LIBS)
 
 scheme$(EXE_EXT): $(OBJS)
-	$(CC) -o $@ $(DEBUG) $(OBJS) $(SYS_LIBS)
+	$(CC) $(CFLAGS) -o $@ $(DEBUG) $(OBJS) $(SYS_LIBS)
 
 $(STATICLIBTARGET): $(OBJS)
 	$(AR) $@ $(OBJS)