$OpenBSD: patch-Makefile,v 1.4 2013/12/11 10:45:49 dcoppa Exp $
--- Makefile.orig	Tue Nov 26 09:48:03 2013
+++ Makefile	Wed Dec 11 11:38:37 2013
@@ -5,7 +5,7 @@
 # http://miniupnp.free.fr/libnatpmp.html
 
 OS = $(shell uname -s)
-CC = gcc
+CC ?= gcc
 INSTALL = install
 VERSION = $(shell cat VERSION)
 
@@ -22,7 +22,7 @@ endif
 # APIVERSION is used in soname
 APIVERSION = 1
 #LDFLAGS = -Wl,--no-undefined
-CFLAGS = -Os
+CFLAGS ?= -Os
 #CFLAGS = -g -O0
 CFLAGS += -fPIC
 CFLAGS += -Wall
@@ -47,9 +47,9 @@ ifneq (,$(findstring WIN,$(OS)))
   CC = i686-w64-mingw32-gcc
   EXTRA_LD = -lws2_32 -lIphlpapi -Wl,--no-undefined -Wl,--enable-runtime-pseudo-reloc --Wl,kill-at
 else
-  SHAREDLIB = libnatpmp.so
-  JNISHAREDLIB = libjninatpmp.so
-  SONAME = $(SHAREDLIB).$(APIVERSION)
+  SHAREDLIB ?= libnatpmp.so
+  JNISHAREDLIB ?= libjninatpmp.so
+  SONAME ?= $(SHAREDLIB).$(APIVERSION)
 endif
 endif
 
@@ -88,13 +88,12 @@ depend:
 
 install:	$(HEADERS) $(STATICLIB) $(SHAREDLIB) natpmpc-shared
 	$(INSTALL) -d $(INSTALLDIRINC)
-	$(INSTALL) -m 644 $(HEADERS) $(INSTALLDIRINC)
+	$(INSTALL_DATA) $(HEADERS) $(INSTALLDIRINC)
 	$(INSTALL) -d $(INSTALLDIRLIB)
-	$(INSTALL) -m 644 $(STATICLIB) $(INSTALLDIRLIB)
-	$(INSTALL) -m 644 $(SHAREDLIB) $(INSTALLDIRLIB)/$(SONAME)
+	$(INSTALL_DATA) $(STATICLIB) $(INSTALLDIRLIB)
+	$(INSTALL_DATA) $(SHAREDLIB) $(INSTALLDIRLIB)/$(SONAME)
 	$(INSTALL) -d $(INSTALLDIRBIN)
-	$(INSTALL) -m 755 natpmpc-shared $(INSTALLDIRBIN)/natpmpc
-	ln -s -f $(SONAME) $(INSTALLDIRLIB)/$(SHAREDLIB)
+	$(INSTALL_PROGRAM) natpmpc-shared $(INSTALLDIRBIN)/natpmpc
 
 $(JNIHEADERS): fr/free/miniupnp/libnatpmp/NatPmp.class
 	javah -jni fr.free.miniupnp.libnatpmp.NatPmp
@@ -157,7 +156,7 @@ $(SHAREDLIB):	$(LIBOBJS)
 ifeq ($(OS), Darwin)
 	$(CC) -dynamiclib -Wl,-install_name,$(SONAME) -o $@ $^
 else
-	$(CC) -shared -Wl,-soname,$(SONAME) -o $@ $^ $(EXTRA_LD)
+	$(CC) -shared -o $@ $^ $(EXTRA_LD)
 endif
 
 
