enable -DPACKAGE_STATIC=1 builds

Only configures the project for packaging of the statically built binary placed in build/

CMakeLists.txt

@@ -17,143 +17,72 @@ project(zerotier
 	DESCRIPTION "ZeroTier Network Hypervisor" 
 	LANGUAGES CXX C)
 
-
 if(${CMAKE_VERSION} VERSION_LESS 3.15)
 	cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
 else()
 	cmake_policy(VERSION 3.15)
 endif()
 
-find_program(
-	GO go
-	HINTS "/usr/local/go/bin" "C:/go/bin"
-)
+if(NOT PACKAGE_STATIC)
+	find_program(
+		GO go
+		HINTS "/usr/local/go/bin" "C:/go/bin"
+	)
 
-if(NOT GO)
-	message(FATAL_ERROR "Golang not found")
-else(NOT GO)
-	message(STATUS "Found Golang at ${GO}")
-endif(NOT GO)
+	if(NOT GO)
+		message(FATAL_ERROR "Golang not found")
+	else(NOT GO)
+		message(STATUS "Found Golang at ${GO}")
+	endif(NOT GO)
 
-set(CMAKE_CXX_STANDARD 11)
-set(default_build_type "Release")
+	set(CMAKE_CXX_STANDARD 11)
+	set(default_build_type "Release")
 
-if(WIN32)
-	set(CMAKE_SYSTEM_VERSION "7" CACHE STRING INTERNAL FORCE)
-endif(WIN32)
+	if(WIN32)
+		set(CMAKE_SYSTEM_VERSION "7" CACHE STRING INTERNAL FORCE)
+	endif(WIN32)
 
-set(CMAKE_OSX_DEPLOYMENT_TARGET "10.12" CACHE STRING "Minimum OS X Deployment Version")
+	set(CMAKE_OSX_DEPLOYMENT_TARGET "10.12" CACHE STRING "Minimum OS X Deployment Version")
 
-if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
-	message(STATUS "Setting build type to '${default_build_type}' as none was specified.")
-	set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING "Choose the type of build." FORCE)
-	set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
-endif()
+	if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+		message(STATUS "Setting build type to '${default_build_type}' as none was specified.")
+		set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE STRING "Choose the type of build." FORCE)
+		set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
+	endif()
 
-option(BUILD_CENTRAL_CONTROLLER "Build ZeroTier Central Controller" OFF)
-if(BUILD_CENTRAL_CONTROLLER)
-	find_package(PkgConfig REQUIRED)
-	if(APPLE)
-		set(CMAKE_PREFIX_PATH 
-			${CMAKE_PREFIX_PATH}
-			/usr/local/opt/libpq
-			/usr/local/lib
-		)
-	endif(APPLE)
-	find_package(PostgreSQL REQUIRED)
-	
-	pkg_check_modules(hiredis REQUIRED IMPORTED_TARGET hiredis)
-	
-	add_subdirectory(controller/thirdparty/redis-plus-plus-1.1.1)
-	set(redispp_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/controller/thirdparty/redis-plus-plus-1.1.1/src/sw)
-	set(redispp_STATIC_LIB redispp_static)
-endif(BUILD_CENTRAL_CONTROLLER)
-
-if(CMAKE_BUILD_TYPE STREQUAL "Debug")
-	add_definitions(-DZT_DEBUG)
-endif(CMAKE_BUILD_TYPE STREQUAL "Debug")
-
-if(WIN32)
-
-	message("++ Setting Windows Compiler Flags ${CMAKE_BUILD_TYPE}")
-	add_definitions(-DNOMINMAX)
-
-	set(GOFLAGS
-		-trimpath
-	)
+	option(BUILD_CENTRAL_CONTROLLER "Build ZeroTier Central Controller" OFF)
+	if(BUILD_CENTRAL_CONTROLLER)
+		find_package(PkgConfig REQUIRED)
+		if(APPLE)
+			set(CMAKE_PREFIX_PATH 
+				${CMAKE_PREFIX_PATH}
+				/usr/local/opt/libpq
+				/usr/local/lib
+			)
+		endif(APPLE)
+		find_package(PostgreSQL REQUIRED)
+		
+		pkg_check_modules(hiredis REQUIRED IMPORTED_TARGET hiredis)
+		
+		add_subdirectory(controller/thirdparty/redis-plus-plus-1.1.1)
+		set(redispp_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/controller/thirdparty/redis-plus-plus-1.1.1/src/sw)
+		set(redispp_STATIC_LIB redispp_static)
+	endif(BUILD_CENTRAL_CONTROLLER)
 
-	option(BUILD_32BIT "Force building as 32-bit binary" OFF)
+	if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+		add_definitions(-DZT_DEBUG)
+	endif(CMAKE_BUILD_TYPE STREQUAL "Debug")
 
-	if(BUILD_32BIT)
-		set(CMAKE_SYSTEM_PROCESSOR "x86" CACHE STRING "system processor")
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32" CACHE STRING "c++ flags")
-		set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -m32" CACHE STRING "c flags")
-		set(GOARCH "GOARCH=386" CACHE STRING "go architecture")
-		add_compile_options(
-			-m32
-		)
-		add_link_options(
-			-m32
-		)
-	endif(BUILD_32BIT)
-else(WIN32)
+	if(WIN32)
 
-	set(GOFLAGS
-		-trimpath
-		-buildmode=pie
-	)
-
-	if(APPLE)
-
-		message("++ Setting MacOS Compiler Flags ${CMAKE_BUILD_TYPE}")
-
-		add_compile_options(
-			-Wall
-			-Wno-deprecated
-			-Wno-unused-function
-			-mmacosx-version-min=10.12
-			$<$<CONFIG:DEBUG>:-g>
-			$<$<CONFIG:DEBUG>:-O0>
-			$<$<CONFIG:RELEASE>:-Ofast>
-			$<$<CONFIG:RELEASE>:-ffast-math>
-			$<$<CONFIG:RELEASE>:-fPIE>
-			$<$<CONFIG:RELEASE>:-flto>
-			$<$<CONFIG:RELWITHDEBINFO>:-O1>
-			$<$<CONFIG:RELWITHDEBINFO>:-fPIE>
-			$<$<CONFIG:RELWITHDEBINFO>:-g>
-		)
-
-		add_link_options(
-			-mmacosx-version-min=10.12
-			$<$<CONFIG:RELEASE>:-flto>
-		)
+		message("++ Setting Windows Compiler Flags ${CMAKE_BUILD_TYPE}")
+		add_definitions(-DNOMINMAX)
 
 		set(GOFLAGS
-			${GOFLAGS}
-			-a
-			-ldflags '-w -extldflags \"-Wl,-undefined -Wl,dynamic_lookup\"'
-		)
-
-	else(APPLE)
-
-		message("++ Setting Linux/BSD/Posix Compiler Flags (${CMAKE_BUILD_TYPE})")
-		add_compile_options(
-			-Wall
-			-Wno-deprecated
-			-Wno-unused-function
-			-Wno-format
-			$<$<CONFIG:DEBUG>:-g>
-			$<$<CONFIG:DEBUG>:-O0>
-			$<$<CONFIG:RELEASE>:-O3>
-			$<$<CONFIG:RELEASE>:-ffast-math>
-			$<$<CONFIG:RELEASE>:-fPIE>
-			$<$<CONFIG:RELWITHDEBINFO>:-O3>
-			$<$<CONFIG:RELWITHDEBINFO>:-fPIE>
-			$<$<CONFIG:RELWITHDEBINFO>:-g>
+			-trimpath
 		)
 
 		option(BUILD_32BIT "Force building as 32-bit binary" OFF)
-		option(BUILD_STATIC "Build statically linked executable" OFF)
 
 		if(BUILD_32BIT)
 			set(CMAKE_SYSTEM_PROCESSOR "x86" CACHE STRING "system processor")
@@ -163,79 +92,158 @@ else(WIN32)
 			add_compile_options(
 				-m32
 			)
+			add_link_options(
+				-m32
+			)
 		endif(BUILD_32BIT)
+	else(WIN32)
 
-		if(BUILD_STATIC)
-			add_link_options(
-				-static
+		set(GOFLAGS
+			-trimpath
+			-buildmode=pie
+		)
+
+		if(APPLE)
+
+			message("++ Setting MacOS Compiler Flags ${CMAKE_BUILD_TYPE}")
+
+			add_compile_options(
+				-Wall
+				-Wno-deprecated
+				-Wno-unused-function
+				-mmacosx-version-min=10.12
+				$<$<CONFIG:DEBUG>:-g>
+				$<$<CONFIG:DEBUG>:-O0>
+				$<$<CONFIG:RELEASE>:-Ofast>
+				$<$<CONFIG:RELEASE>:-ffast-math>
+				$<$<CONFIG:RELEASE>:-fPIE>
+				$<$<CONFIG:RELEASE>:-flto>
+				$<$<CONFIG:RELWITHDEBINFO>:-O1>
+				$<$<CONFIG:RELWITHDEBINFO>:-fPIE>
+				$<$<CONFIG:RELWITHDEBINFO>:-g>
 			)
-			set(CMAKE_EXE_LINKER_FLAGS "-static ${CMAKE_EXE_LINKER_FLAGS}")
-			set(GOFLAGS 
-				${GOFLAGS}
-				-a 
-				-tags netgo
-				-ldflags '-w -extldflags \"-static -Wl,-unresolved-symbols=ignore-all\"'
+
+			add_link_options(
+				-mmacosx-version-min=10.12
+				$<$<CONFIG:RELEASE>:-flto>
 			)
-		else(BUILD_STATIC)
+
 			set(GOFLAGS
 				${GOFLAGS}
 				-a
-				-tags netgo
-				-ldflags '-w -extldflags \"-Wl,-unresolved-symbols=ignore-all\"'
+				-ldflags '-w -extldflags \"-Wl,-undefined -Wl,dynamic_lookup\"'
 			)
-		endif(BUILD_STATIC)
-
-	endif(APPLE)
-endif(WIN32)
-
-if (
-	CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64" OR
-	CMAKE_SYSTEM_PROCESSOR MATCHES "amd64" OR
-	CMAKE_SYSTEM_PROCESSOR MATCHES "AMD64"
-)
-	message("++ Adding flags for processor ${CMAKE_SYSTEM_PROCESSOR}")
-	add_compile_options(-maes -mrdrnd -mpclmul -msse -msse2 -mssse3)
-endif()
 
-set(GO_BUILD_TAGS)
-
-if(BUILD_CENTRAL_CONTROLLER)
-	add_definitions(-DZT_CONTROLLER_USE_LIBPQ=1)
-	set(GO_BUILD_TAGS -tags central)
-endif(BUILD_CENTRAL_CONTROLLER)
-
-add_subdirectory(core)
-add_subdirectory(controller)
-add_subdirectory(osdep)
-add_subdirectory(serviceiocore)
-
-file(GLOB go_src 
-	${CMAKE_SOURCE_DIR}/cmd/*.go
-	${CMAKE_SOURCE_DIR}/cmd/cmd/*.go
-	${CMAKE_SOURCE_DIR}/pkg/zerotier/*.go)
-
-if(WIN32)
-	set(GO_EXE_NAME "zerotier.exe")
-	set(GO_EXTRA_LIBRARIES "-lstdc++ -lwsock32 -lws2_32 -liphlpapi -lole32 -loleaut32 -lrpcrt4 -luuid")
-else(WIN32)
-	set(GO_EXE_NAME "zerotier")
-	if(CMAKE_SYSTEM_NAME MATCHES "Linux")
-		set(GO_EXTRA_LIBRARIES "-lstdc++")
-	else()
-		set(GO_EXTRA_LIBRARIES "-lc++")
+		else(APPLE)
+
+			message("++ Setting Linux/BSD/Posix Compiler Flags (${CMAKE_BUILD_TYPE})")
+			add_compile_options(
+				-Wall
+				-Wno-deprecated
+				-Wno-unused-function
+				-Wno-format
+				$<$<CONFIG:DEBUG>:-g>
+				$<$<CONFIG:DEBUG>:-O0>
+				$<$<CONFIG:RELEASE>:-O3>
+				$<$<CONFIG:RELEASE>:-ffast-math>
+				$<$<CONFIG:RELEASE>:-fPIE>
+				$<$<CONFIG:RELWITHDEBINFO>:-O3>
+				$<$<CONFIG:RELWITHDEBINFO>:-fPIE>
+				$<$<CONFIG:RELWITHDEBINFO>:-g>
+			)
+
+			option(BUILD_32BIT "Force building as 32-bit binary" OFF)
+			option(BUILD_STATIC "Build statically linked executable" OFF)
+
+			if(BUILD_32BIT)
+				set(CMAKE_SYSTEM_PROCESSOR "x86" CACHE STRING "system processor")
+				set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32" CACHE STRING "c++ flags")
+				set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -m32" CACHE STRING "c flags")
+				set(GOARCH "GOARCH=386" CACHE STRING "go architecture")
+				add_compile_options(
+					-m32
+				)
+			endif(BUILD_32BIT)
+
+			if(BUILD_STATIC)
+				add_link_options(
+					-static
+				)
+				set(CMAKE_EXE_LINKER_FLAGS "-static ${CMAKE_EXE_LINKER_FLAGS}")
+				set(GOFLAGS 
+					${GOFLAGS}
+					-a 
+					-tags netgo
+					-ldflags '-w -extldflags \"-static -Wl,-unresolved-symbols=ignore-all\"'
+				)
+			else(BUILD_STATIC)
+				set(GOFLAGS
+					${GOFLAGS}
+					-a
+					-tags netgo
+					-ldflags '-w -extldflags \"-Wl,-unresolved-symbols=ignore-all\"'
+				)
+			endif(BUILD_STATIC)
+
+		endif(APPLE)
+	endif(WIN32)
+
+	if (
+		CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64" OR
+		CMAKE_SYSTEM_PROCESSOR MATCHES "amd64" OR
+		CMAKE_SYSTEM_PROCESSOR MATCHES "AMD64"
+	)
+		message("++ Adding flags for processor ${CMAKE_SYSTEM_PROCESSOR}")
+		add_compile_options(-maes -mrdrnd -mpclmul -msse -msse2 -mssse3)
 	endif()
-endif(WIN32)
-
-add_custom_target(
-	zerotier ALL
-	BYPRODUCTS ${CMAKE_BINARY_DIR}/zerotier
-	SOURCES ${go_src}
-	COMMAND ${CMAKE_COMMAND} -E env ${GOARCH} CGO_ENABLED=1 CGO_CFLAGS=\"-O3\" CGO_LDFLAGS=\"$<TARGET_FILE:zt_core> $<TARGET_FILE:zt_controller> $<TARGET_FILE:zt_service_io_core> $<TARGET_FILE:zt_osdep> ${GO_EXTRA_LIBRARIES}\" ${GO} build ${GOFLAGS} -o ${CMAKE_BINARY_DIR}/${GO_EXE_NAME} ${CMAKE_SOURCE_DIR}/cmd/zerotier/zerotier.go
-	COMMENT "Compiling Go Code..."
-)
-add_dependencies(zerotier zt_osdep zt_core zt_controller zt_service_io_core)
-
-install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/zerotier DESTINATION bin)
+
+	set(GO_BUILD_TAGS)
+
+	if(BUILD_CENTRAL_CONTROLLER)
+		add_definitions(-DZT_CONTROLLER_USE_LIBPQ=1)
+		set(GO_BUILD_TAGS -tags central)
+	endif(BUILD_CENTRAL_CONTROLLER)
+
+	add_subdirectory(core)
+	add_subdirectory(controller)
+	add_subdirectory(osdep)
+	add_subdirectory(serviceiocore)
+
+	file(GLOB go_src 
+		${CMAKE_SOURCE_DIR}/cmd/*.go
+		${CMAKE_SOURCE_DIR}/cmd/cmd/*.go
+		${CMAKE_SOURCE_DIR}/pkg/zerotier/*.go)
+
+	if(WIN32)
+		set(GO_EXE_NAME "zerotier.exe")
+		set(GO_EXTRA_LIBRARIES "-lstdc++ -lwsock32 -lws2_32 -liphlpapi -lole32 -loleaut32 -lrpcrt4 -luuid")
+	else(WIN32)
+		set(GO_EXE_NAME "zerotier")
+		if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+			set(GO_EXTRA_LIBRARIES "-lstdc++")
+		else()
+			set(GO_EXTRA_LIBRARIES "-lc++")
+		endif()
+	endif(WIN32)
+
+	add_custom_target(
+		zerotier ALL
+		BYPRODUCTS ${CMAKE_BINARY_DIR}/zerotier
+		SOURCES ${go_src}
+		COMMAND ${CMAKE_COMMAND} -E env ${GOARCH} CGO_ENABLED=1 CGO_CFLAGS=\"-O3\" CGO_LDFLAGS=\"$<TARGET_FILE:zt_core> $<TARGET_FILE:zt_controller> $<TARGET_FILE:zt_service_io_core> $<TARGET_FILE:zt_osdep> ${GO_EXTRA_LIBRARIES}\" ${GO} build ${GOFLAGS} -o ${CMAKE_BINARY_DIR}/${GO_EXE_NAME} ${CMAKE_SOURCE_DIR}/cmd/zerotier/zerotier.go
+		COMMENT "Compiling Go Code..."
+	)
+	add_dependencies(zerotier zt_osdep zt_core zt_controller zt_service_io_core)
+	install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/zerotier DESTINATION bin)
+else(NOT PACKAGE_STATIC)
+	set(STATIC_BINARY ${CMAKE_BINARY_DIR}/zerotier)
+	set(IMPORTED_LOCATION ${CMAKE_BINARY_DIR})
+	add_executable(zerotier IMPORTED GLOBAL)
+	install(PROGRAMS ${STATIC_BINARY} DESTINATION bin)
+endif(NOT PACKAGE_STATIC)
+
+
+
 if("${CMAKE_SYSTEM_NAME}" EQUAL "Linux")
 	if(IS_DIRECTORY /lib/systemd/system)
 		install(