Disable some warnings in tests/examples.

Refactored a bunch of common stuff into a function to do this

Author: zpostfacto

CMakeLists.txt

@@ -142,6 +142,51 @@ if(USE_CRYPTO STREQUAL "libsodium")
 	endif()
 endif()
 
+
+function(set_target_common_gns_properties TGT)
+	target_compile_definitions( ${TGT} PRIVATE GOOGLE_PROTOBUF_NO_RTTI )
+
+	if(CMAKE_SYSTEM_NAME MATCHES Linux)
+		target_compile_definitions(${TGT} PUBLIC POSIX LINUX)
+	elseif(CMAKE_SYSTEM_NAME MATCHES Darwin)
+		target_compile_definitions(${TGT} PUBLIC POSIX OSX)
+	elseif(CMAKE_SYSTEM_NAME MATCHES Windows)
+		#target_compile_definitions(${TGT} PUBLIC WIN32)
+		if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+			if(NOT Protobuf_USE_STATIC_LIBS)
+				target_compile_definitions(${TGT} PRIVATE PROTOBUF_USE_DLLS)
+			endif()
+			target_compile_options(${TGT} PRIVATE
+				/EHs-c-   # Disable C++ exceptions
+				/GR-      # Disable RTTI
+
+				# Below are warnings we can't fix and don't want to see (mostly from protobuf, some from MSVC standard library)
+				/wd4146   # include/google/protobuf/wire_format_lite.h(863): warning C4146: unary minus operator applied to unsigned type, result still unsigned
+				/wd4530   # .../xlocale(319): warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify /EHsc
+				/wd4244   # google/protobuf/wire_format_lite.h(935): warning C4244: 'argument': conversion from 'google::protobuf::uint64' to 'google::protobuf::uint32', possible loss of data
+				/wd4251   # 'google::protobuf::io::CodedOutputStream::default_serialization_deterministic_': struct 'std::atomic<bool>' needs to have dll-interface to be used by clients of class 
+				/wd4267   # google/protobuf/has_bits.h(73): warning C4267: 'argument': conversion from 'size_t' to 'int', possible loss of data
+				)
+		else()
+			target_compile_definitions(${TGT} PRIVATE
+				__STDC_FORMAT_MACROS=1
+				__USE_MINGW_ANSI_STDIO=0
+				)
+			target_compile_options(${TGT} PRIVATE -fno-stack-protector)
+		endif()
+	else()
+		message(FATAL_ERROR "Could not identify your target operating system")
+	endif()
+
+	if(NOT CMAKE_SYSTEM_NAME MATCHES Windows)
+		target_compile_options(${TGT} PRIVATE -fstack-protector-strong)
+	endif()
+
+	set_target_properties(${TGT} PROPERTIES
+		CXX_STANDARD 11
+	)
+endfunction()
+
 if(GAMENETWORKINGSOCKETS_BUILD_EXAMPLES)
 	add_subdirectory(examples)
 endif()

examples/CMakeLists.txt

@@ -30,6 +30,8 @@ add_executable(
 	example_chat
 	example_chat.cpp)
 
+set_target_common_gns_properties( example_chat )
+
 # If building the example as a standalone project, need to find GameNetworkingSockets
 if(${CMAKE_PROJECT_NAME} STREQUAL "gns_example")
 	find_package(GameNetworkingSockets CONFIG REQUIRED)

src/CMakeLists.txt

@@ -152,6 +152,8 @@ macro(gamenetworkingsockets_common GNS_TARGET)
 	target_sources(${GNS_TARGET} PRIVATE ${GNS_SRCS})
 	target_sources(${GNS_TARGET} PRIVATE ${GNS_PROTO_SRCS})
 
+	set_target_common_gns_properties( ${GNS_TARGET} )
+
 	target_include_directories(${GNS_TARGET} PUBLIC
 		"$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include>"
 		"$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}/GameNetworkingSockets>"
@@ -213,7 +215,6 @@ macro(gamenetworkingsockets_common GNS_TARGET)
 		STEAMNETWORKINGSOCKETS_FOREXPORT
 		ENABLE_OPENSSLCONNECTION
 		CRYPTO_DISABLE_ENCRYPT_WITH_PASSWORD
-		GOOGLE_PROTOBUF_NO_RTTI
 		${GNS_CRYPTO_DEFINES}
 		)
 
@@ -253,42 +254,19 @@ macro(gamenetworkingsockets_common GNS_TARGET)
 		if(USE_STEAMWEBRTC AND NOT STEAMWEBRTC_USE_STATIC_LIBS)
 			target_link_libraries(${GNS_TARGET} PRIVATE dl)
 		endif()
-		target_compile_definitions(${GNS_TARGET} PUBLIC POSIX LINUX)
 	elseif(CMAKE_SYSTEM_NAME MATCHES Darwin)
 		if(USE_STEAMWEBRTC AND NOT STEAMWEBRTC_USE_STATIC_LIBS)
 			target_link_libraries(${GNS_TARGET} PRIVATE dl)
 		endif()
-		target_compile_definitions(${GNS_TARGET} PUBLIC POSIX OSX)
 	elseif(CMAKE_SYSTEM_NAME MATCHES Windows)
-		target_compile_definitions(${GNS_TARGET} PUBLIC WIN32)
 		if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
-			if(NOT Protobuf_USE_STATIC_LIBS)
-				target_compile_definitions(${GNS_TARGET} PRIVATE
-					PROTOBUF_USE_DLLS)
-			endif()
 			get_target_property(TARGET_TYPE ${GNS_TARGET} TYPE)
-			target_compile_options(${GNS_TARGET} PRIVATE
-				/EHs-c-   # Disable C++ exceptions
-				/GR-      # Disable RTTI
-
-				# Below are warnings we can't fix and don't want to see (mostly from protobuf, some from MSVC standard library)
-				/wd4146   # include/google/protobuf/wire_format_lite.h(863): warning C4146: unary minus operator applied to unsigned type, result still unsigned
-				/wd4530   # .../xlocale(319): warning C4530: C++ exception handler used, but unwind semantics are not enabled. Specify /EHsc
-				/wd4244   # google/protobuf/wire_format_lite.h(935): warning C4244: 'argument': conversion from 'google::protobuf::uint64' to 'google::protobuf::uint32', possible loss of data
-				/wd4251   # 'google::protobuf::io::CodedOutputStream::default_serialization_deterministic_': struct 'std::atomic<bool>' needs to have dll-interface to be used by clients of class 
-				)
 			if(NOT TARGET_TYPE STREQUAL STATIC_LIBRARY)
 				target_compile_options(${GNS_TARGET} PRIVATE
 					/GL       # Enable link-time code generation
 					)
 				set_target_properties(${GNS_TARGET} PROPERTIES LINK_FLAGS "/LTCG /SUBSYSTEM:WINDOWS")
 			endif()
-		else()
-			target_compile_definitions(${GNS_TARGET} PRIVATE
-				__STDC_FORMAT_MACROS=1
-				__USE_MINGW_ANSI_STDIO=0
-				)
-			target_compile_options(${GNS_TARGET} PRIVATE -fno-stack-protector)
 		endif()
 		target_link_libraries(${GNS_TARGET} PUBLIC ws2_32 crypt32)
 		if(USE_CRYPTO STREQUAL "BCrypt")
@@ -298,14 +276,6 @@ macro(gamenetworkingsockets_common GNS_TARGET)
 		message(FATAL_ERROR "Could not identify your target operating system")
 	endif()
 
-	if(NOT CMAKE_SYSTEM_NAME MATCHES Windows)
-		target_compile_options(${GNS_TARGET} PRIVATE -fstack-protector-strong)
-	endif()
-
-	set_target_properties(${GNS_TARGET} PROPERTIES
-		CXX_STANDARD 11
-		)
-
 	add_sanitizers(${GNS_TARGET})
 
 endmacro()

tests/CMakeLists.txt

@@ -31,6 +31,10 @@ target_include_directories(test_crypto PRIVATE ../src ../src/public ../src/commo
 target_link_libraries(test_crypto GameNetworkingSockets_s)
 add_sanitizers(test_crypto)
 
+set_target_common_gns_properties( test_connection )
+set_target_common_gns_properties( test_p2p )
+set_target_common_gns_properties( test_crypto )
+
 file(COPY aesgcmtestvectors DESTINATION ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
 
 # NOTE: This happens when we generate the projects, and really we'd like to actually