Add the beginnings of a Dart wrapper for libarchive.

utils/archive/Makefile

Index: utils/archive/Makefile
diff --git a/utils/archive/Makefile b/utils/archive/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..d4b7732ddfea98f7077b6afc35417e2b78ff5b89
--- /dev/null
+++ b/utils/archive/Makefile
@@ -0,0 +1,23 @@
+# Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+# TODO(nweiz): replace this with a .gypi file
+
+CC = gcc
+CFLAGS = -fPIC -m32 -I ../../runtime/include/ -g
+LDFLAGS = -shared -m32 -g -larchive -Wl,-soname,libdart_archive.so
+
+all: libdart_archive.so
+
+libdart_archive.so: dart_archive.o messaging.o reader.o
+	$(CC) $(LDFLAGS) -o $@ dart_archive.o messaging.o reader.o
+
+dart_archive.o: dart_archive.c dart_archive.h
+	$(CC) $(CFLAGS) -c $<
+
+messaging.o: messaging.c messaging.h dart_archive.h
+	$(CC) $(CFLAGS) -c $<
+
+reader.o: reader.c messaging.h dart_archive.h
+	$(CC) $(CFLAGS) -c $<