Add Makefile. This compiles libobjc2 without the need for GNUstep Make (or even GNU make), so should make bootstrapping a bit easier.

Makefile

@@ -0,0 +1,60 @@
+.POSIX:
+
+VERSION = 4
+
+#CC=clang
+
+CFLAGS += -std=c99
+
+#LIB_DIR=/usr/local/GNUstep/Local/Library/Libraries/
+#HEADER_DIR=/usr/local/GNUstep/Local/Library/Headers
+LIB_DIR=/tmp/usr/lib/
+HEADER_DIR=/tmp/usr/include/
+
+OBJECTS = \
+	NSBlocks.o\
+	Protocol2.o\
+	abi_version.o\
+	blocks_runtime.o\
+	caps.o\
+	category_loader.o\
+	class_table.o\
+	dtable.o\
+	eh_personality.o\
+	encoding2.o\
+	hash_table.o\
+	hooks.o\
+	ivar.o\
+	legacy_malloc.o\
+	loader.o\
+	mutation.o\
+	properties.o\
+	protocol.o\
+	runtime.o\
+	sarray2.o\
+	selector_table.o\
+	sendmsg2.o\
+	statics_loader.o\
+	sync.o
+
+all: libobjc.so.$(VERSION)
+
+libobjc.so.$(VERSION): $(OBJECTS)
+	@echo Linking shared library...
+	ld -shared -o $@ $(OBJECTS)
+
+.c.o:
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
+
+.m.o:
+	$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@
+
+install: all
+	install -m 444 libobjc.so.$(VERSION) $(LIB_DIR)
+	ln -sf $(LIB_DIR)/libobjc.so.$(VERSION) $(LIB_DIR)/libobjc.so
+	install -d $(HEADER_DIR)/objc
+	install -m 444 objc/*.h $(HEADER_DIR)/objc
+
+clean:
+	rm -f $(OBJECTS)
+	rm -f libobjc.so.$(VERSION)