$NetBSD: patch-Makefile,v 1.2 2018/07/24 06:06:08 adam Exp $

Use custom CFLAGS; do not fail on warnings.
Fix install_name on Darwin.
Link against shared library.

--- Makefile.orig	2018-07-23 03:00:50.000000000 +0000
+++ Makefile
@@ -18,7 +18,7 @@ CONFIG_LOCALVERSION =
 CPPFLAGS = -I libfdt -I .
 WARNINGS = -Wall -Wpointer-arith -Wcast-qual -Wnested-externs \
 	-Wstrict-prototypes -Wmissing-prototypes -Wredundant-decls -Wshadow
-CFLAGS = -g -Os $(SHAREDLIB_CFLAGS) -Werror $(WARNINGS)
+CFLAGS += $(SHAREDLIB_CFLAGS) $(WARNINGS)
 
 BISON = bison
 LEX = flex
@@ -42,7 +42,7 @@ HOSTOS := $(shell uname -s | tr '[:upper
 ifeq ($(HOSTOS),darwin)
 SHAREDLIB_EXT     = dylib
 SHAREDLIB_CFLAGS  = -fPIC
-SHAREDLIB_LDFLAGS = -fPIC -dynamiclib -Wl,-install_name -Wl,
+SHAREDLIB_LDFLAGS = -fPIC -dynamiclib -Wl,-install_name -Wl,$(LIBDIR)/
 else ifeq ($(HOSTOS),$(filter $(HOSTOS),msys cygwin))
 SHAREDLIB_EXT     = so
 SHAREDLIB_CFLAGS  =
@@ -237,11 +237,11 @@ convert-dtsv0: $(CONVERT_OBJS)
 
 fdtdump:	$(FDTDUMP_OBJS)
 
-fdtget:	$(FDTGET_OBJS) $(LIBFDT_archive)
+fdtget:	$(FDTGET_OBJS) $(LIBFDT_lib)
 
-fdtput:	$(FDTPUT_OBJS) $(LIBFDT_archive)
+fdtput:	$(FDTPUT_OBJS) $(LIBFDT_lib)
 
-fdtoverlay: $(FDTOVERLAY_OBJS) $(LIBFDT_archive)
+fdtoverlay: $(FDTOVERLAY_OBJS) $(LIBFDT_lib)
 
 dist:
 	git archive --format=tar --prefix=dtc-$(dtc_version)/ HEAD \