--- Makefile.orig	2013-01-28 12:10:25.000000000 +0200
+++ Makefile	2013-02-07 15:19:04.788319388 +0200
@@ -35,7 +35,7 @@
 CFLAGS += -fno-common
 CFLAGS += -DMINIUPNPC_SET_SOCKET_TIMEOUT
 CFLAGS += -DMINIUPNPC_GET_SRC_ADDR
-CFLAGS += -D_BSD_SOURCE -D_POSIX_C_SOURCE=1
+CFLAGS += -D_BSD_SOURCE
 CFLAGS += -ansi
 # -DNO_GETADDRINFO
 INSTALL = install
@@ -80,7 +80,7 @@
   SONAME = $(basename $(SHAREDLIBRARY)).$(APIVERSION).dylib
   CFLAGS := -DMACOSX -D_DARWIN_C_SOURCE $(CFLAGS)
 else
-ifeq ($(OS), Linux)
+ifeq ($(OS), FreeBSD)
   SHAREDLIBRARY = libminiupnpc.so
   SONAME = $(SHAREDLIBRARY).$(APIVERSION)
 endif
@@ -110,13 +110,11 @@
 TESTIGDDESCPARSE := $(TESTIGDDESCPARSE) minissdpc.o
 endif
 
-LIBDIR ?= lib
 # install directories
-INSTALLPREFIX ?= $(PREFIX)/usr
 INSTALLDIRINC = $(INSTALLPREFIX)/include/miniupnpc
-INSTALLDIRLIB = $(INSTALLPREFIX)/$(LIBDIR)
+INSTALLDIRLIB = $(INSTALLPREFIX)/lib
 INSTALLDIRBIN = $(INSTALLPREFIX)/bin
-INSTALLDIRMAN = $(INSTALLPREFIX)/share/man
+INSTALLDIRMAN = $(INSTALLPREFIX)/man
 
 FILESTOINSTALL = $(LIBRARY) $(EXECUTABLES)
 ifneq ($(OS), AmigaOS)