Added all-encompassing packaging script, improvements to CMake build script

Makefile

@@ -1,44 +1,44 @@
-#
-# ZeroTier SDK - Network Virtualization Everywhere
-# Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
-# 
-#  This program is free software: you can redistribute it and/or modify
-#  it under the terms of the GNU General Public License as published by
-#  the Free Software Foundation, either version 3 of the License, or
-#  (at your option) any later version.
-# 
-#  This program is distributed in the hope that it will be useful,
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#  GNU General Public License for more details.
-# 
-#  You should have received a copy of the GNU General Public License
-#  along with this program.  If not, see <http://www.gnu.org/licenses/>.
-# 
-#  --
-# 
-#  You can be released from the requirements of the license by purchasing
-#  a commercial license. Buying such a license is mandatory as soon as you
-#  develop commercial closed-source software that incorporates or links
-#  directly against ZeroTier software without disclosing the source code
-#  of your own application.
-# 
-
-# NOTE: This file only exists as a convenience for cleaning. To build, use 
-# CMake. Instructions are given in README.md
+# NOTE: This file only exists as a convenience for cleaning and building
+# products for release. To build, use CMake. Instructions in README.md
 
 .PHONY: clean
 clean:
-	rm -rf bin build
+	rm -rf bin build products tmp
 	rm -f *.o *.s *.exp *.lib .depend* *.core core
 	rm -rf .depend
 	find . -type f \( -name '*.a' -o -name '*.o' -o -name '*.so' -o -name \
-		'*.o.d' -o -name '*.out' -o -name '*.log' -o -name '*.dSYM' \) -delete	
+		'*.o.d' -o -name '*.out' -o -name '*.log' -o -name '*.dSYM' -o -name '*.dylib' -o -name '*.class' \) -delete
 
+# Build and package everything
+# This command shall be run twice:
+# (1) Generates projects
+#    <perform any required modifications>
+# (2) Build products and package everything
+.PHONY: dist
+dist: patch
+	./packages/dist.sh
+
+# Initialize submodules and apply patches
+.PHONY: all
+all: update patch
+	cmake -H. -Bbuild -DCMAKE_BUILD_TYPE=Release
+	cmake --build build
+
+# Clean build paths
 clean_win:
 	-"rd /S /Q bin"
 	-"rd /S /Q build"
 
+# Remove any CMake-generated library-building projects
+clean_packages:
+	rm -rf packages/xcode_ios
+	rm -rf packages/xcode_macos
+
+.PHONY: update
+update:
+	git submodule update --init --recursive
+
+# Patch submodules
 patch:
-	git -C ext/lwip apply ../lwip.patch
-	git -C ext/lwip-contrib apply ../lwip-contrib.patch
+	-git -C ext/lwip apply ../lwip.patch
+	-git -C ext/lwip-contrib apply ../lwip-contrib.patch