1 files changed, 205 insertions, 0 deletions

diff --git a/SetFlags.cmake b/SetFlags.cmake
new file mode 100644
index 000000000..c5a3a0697
--- /dev/null
+++ b/SetFlags.cmake
@@ -0,0 +1,205 @@
+macro (add_flags_lnk FLAGS)
+	set(CMAKE_EXE_LINKER_FLAGS            "${CMAKE_EXE_LINKER_FLAGS}            ${FLAGS}")
+	set(CMAKE_EXE_LINKER_FLAGS_DEBUG      "${CMAKE_EXE_LINKER_FLAGS_DEBUG}      ${FLAGS}")
+	set(CMAKE_EXE_LINKER_FLAGS_RELEASE    "${CMAKE_EXE_LINKER_FLAGS_RELEASE}    ${FLAGS}")
+	set(CMAKE_SHARED_LINKER_FLAGS         "${CMAKE_SHARED_LINKER_FLAGS}         ${FLAGS}")
+	set(CMAKE_SHARED_LINKER_FLAGS_DEBUG   "${CMAKE_SHARED_LINKER_FLAGS_DEBUG}   ${FLAGS}")
+	set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${FLAGS}")
+	set(CMAKE_MODULE_LINKER_FLAGS         "${CMAKE_MODULE_LINKER_FLAGS}         ${FLAGS}")
+	set(CMAKE_MODULE_LINKER_FLAGS_DEBUG   "${CMAKE_MODULE_LINKER_FLAGS_DEBUG}   ${FLAGS}")
+	set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} ${FLAGS}")
+endmacro()
+
+macro(add_flags_cxx FLAGS)
+	set(CMAKE_CXX_FLAGS         "${CMAKE_CXX_FLAGS}         ${FLAGS}")
+	set(CMAKE_C_FLAGS           "${CMAKE_C_FLAGS}           ${FLAGS}")
+	set(CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}   ${FLAGS}")
+	set(CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}     ${FLAGS}")
+	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${FLAGS}")
+	set(CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}   ${FLAGS}")
+endmacro()
+
+
+macro(set_flags)
+	# Add the preprocessor macros used for distinguishing between debug and release builds (CMake does this automatically for MSVC):
+	if (NOT MSVC)
+		set(CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}   -D_DEBUG")
+		set(CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}     -D_DEBUG")
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNDEBUG")
+		set(CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}   -DNDEBUG")
+	endif()
+
+	if(MSVC)
+		# Make build use multiple threads under MSVC:
+		add_flags_cxx("/MP")
+
+		# Make release builds use link-time code generation:
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /GL")
+		set(CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}   /GL")
+		set(CMAKE_EXE_LINKER_FLAGS_RELEASE    "${CMAKE_EXE_LINKER_FLAGS_RELEASE}    /LTCG")
+		set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /LTCG")
+		set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /LTCG")
+	elseif(APPLE)
+		#on os x clang adds pthread for us but we need to add it for gcc
+		if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+			set(CMAKE_CXX_FLAGS         "${CMAKE_CXX_FLAGS}         -std=c++11")
+			set(CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}   -std=c++11")
+			set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++11")
+		else()
+			add_flags_cxx("-pthread")
+		endif()
+
+	else()
+		# Let gcc / clang know that we're compiling a multi-threaded app:
+		add_flags_cxx("-pthread")
+		if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+			set(CMAKE_CXX_FLAGS         "${CMAKE_CXX_FLAGS}         -std=c++11")
+			set(CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}   -std=c++11")
+			set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++11")
+		endif()
+
+		# We use a signed char (fixes #640 on RasPi)
+		add_flags_cxx("-fsigned-char")
+		
+	endif()
+
+
+	# Allow for a forced 32-bit build under 64-bit OS:
+	if (FORCE_32)
+		add_flags_cxx("-m32")
+		add_flags_lnk("-m32")
+	endif()
+
+
+	# Have the compiler generate code specifically targeted at the current machine on Linux
+	if(LINUX AND NOT CROSSCOMPILE)
+		add_flags_cxx("-march=native")
+	endif()
+
+
+	# Use static CRT in MSVC builds:
+	if (MSVC)
+		string(REPLACE "/MD" "/MT" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
+		string(REPLACE "/MD" "/MT" CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}")
+		string(REPLACE "/MDd" "/MTd" CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}")
+		string(REPLACE "/MDd" "/MTd" CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}")
+	endif()
+endmacro()
+
+macro(set_lib_flags)
+	# Set lower warnings-level for the libraries:
+	if (MSVC)
+		# Remove /W3 from command line -- cannot just cancel it later with /w like in unix, MSVC produces a D9025 warning (option1 overriden by option2)
+		string(REPLACE "/W3" "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
+		string(REPLACE "/W3" "" CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}")
+		string(REPLACE "/W3" "" CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}")
+		string(REPLACE "/W3" "" CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}")
+	else()
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -w")
+		set(CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}   -w")
+		set(CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}   -w")
+		set(CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}     -w")
+	endif()
+
+	# On Unix we use two dynamic loading libraries dl and ltdl.
+	# Preference is for dl on unknown systems as it is specified in POSIX
+	# the dynamic loader is used by lua and sqllite.
+	if (UNIX)
+		if(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
+			set(DYNAMIC_LOADER ltdl)
+		else()
+			set(DYNAMIC_LOADER dl)
+		endif()
+	endif()
+endmacro()
+
+macro(enable_profile)
+	# Declare the flags used for profiling builds:
+	if (MSVC)
+		set (CXX_PROFILING "")
+		set (LNK_PROFILING "/PROFILE")
+	else()
+		set (CXX_PROFILING "-pg")
+		set (LNK_PROFILING "-pg")
+	endif()
+
+
+	# Declare the profiling configurations:
+	SET(CMAKE_CXX_FLAGS_DEBUGPROFILE
+		"${CMAKE_CXX_FLAGS_DEBUG} ${PCXX_ROFILING}"
+		CACHE STRING "Flags used by the C++ compiler during profile builds."
+		FORCE )
+	SET(CMAKE_C_FLAGS_DEBUGPROFILE
+		"${CMAKE_C_FLAGS_DEBUG} ${CXX_PROFILING}"
+		CACHE STRING "Flags used by the C compiler during profile builds."
+		FORCE )
+	SET(CMAKE_EXE_LINKER_FLAGS_DEBUGPROFILE
+		"${CMAKE_EXE_LINKER_FLAGS_DEBUG} ${LNK_PROFILING}"
+		CACHE STRING "Flags used for linking binaries during profile builds."
+		FORCE )
+	SET(CMAKE_SHARED_LINKER_FLAGS_DEBUGPROFILE
+		"${CMAKE_SHARED_LINKER_FLAGS_DEBUG} ${LNK_PROFILING}"
+		CACHE STRING "Flags used by the shared libraries linker during profile builds."
+		FORCE )
+	MARK_AS_ADVANCED(
+		CMAKE_CXX_FLAGS_DEBUGPROFILE
+		CMAKE_C_FLAGS_DEBUGPROFILE
+		CMAKE_EXE_LINKER_FLAGS_DEBUGPROFILE
+		CMAKE_SHARED_LINKER_FLAGS_DEBUGPROFILE )
+
+	SET(CMAKE_CXX_FLAGS_RELEASEPROFILE
+		"${CMAKE_CXX_FLAGS_RELEASE} ${CXX_PROFILING}"
+		CACHE STRING "Flags used by the C++ compiler during profile builds."
+		FORCE )
+	SET(CMAKE_C_FLAGS_RELEASEPROFILE
+		"${CMAKE_C_FLAGS_RELEASE} ${CXX_PROFILING}"
+		CACHE STRING "Flags used by the C compiler during profile builds."
+		FORCE )
+	SET(CMAKE_EXE_LINKER_FLAGS_RELEASEPROFILE
+		"${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${LNK_PROFILING}"
+		CACHE STRING "Flags used for linking binaries during profile builds."
+		FORCE )
+	SET(CMAKE_SHARED_LINKER_FLAGS_RELEASEPROFILE
+		"${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${LNK_PROFILING}"
+		CACHE STRING "Flags used by the shared libraries linker during profile builds."
+		FORCE )
+	MARK_AS_ADVANCED(
+		CMAKE_CXX_FLAGS_RELEASEPROFILE
+		CMAKE_C_FLAGS_RELEASEPROFILE
+		CMAKE_EXE_LINKER_FLAGS_RELEASEPROFILE
+		CMAKE_SHARED_LINKER_FLAGS_RELEASEPROFILE )
+	# The configuration types need to be set after their respective c/cxx/linker flags and before the project directive
+	set(CMAKE_CONFIGURATION_TYPES "Debug;Release;DebugProfile;ReleaseProfile" CACHE STRING "" FORCE)
+endmacro()
+    
+macro(set_exe_flags)
+	# Remove disabling the maximum warning level:
+	# clang does not like a command line that reads -Wall -Wextra -w -Wall -Wextra and does not output any warnings
+	# We do not do that for MSVC since MSVC produces an awful lot of warnings for its own STL headers;
+	# the important warnings are turned on using #pragma in Globals.h
+	if (NOT MSVC)
+		string(REPLACE "-w" "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
+		string(REPLACE "-w" "" CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE}")
+		string(REPLACE "-w" "" CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS_DEBUG}")
+		string(REPLACE "-w" "" CMAKE_C_FLAGS_DEBUG     "${CMAKE_C_FLAGS_DEBUG}")
+		add_flags_cxx("-Wall -Wextra -Wno-unused-parameter -Wno-error=switch")
+		
+		# we support non-IEEE 754 fpus so can make no guarentees about error
+		add_flags_cxx("-ffast-math")
+		
+		if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+			# clang does not provide the __extern_always_inline macro and a part of libm depends on this when using fast-math
+			add_flags_cxx("-D__extern_always_inline=inline")
+			add_flags_cxx("-Werror -Weverything -Wno-c++98-compat-pedantic -Wno-string-conversion")
+			add_flags_cxx("-Wno-extra-semi -Wno-error=switch-enum -Wno-documentation")
+			add_flags_cxx("-Wno-error=sign-conversion -Wno-error=conversion -Wno-padded")
+			add_flags_cxx("-Wno-error=deprecated -Wno-error=weak-vtables -Wno-error=float-equal")
+			add_flags_cxx("-Wno-error=missing-prototypes -Wno-error=non-virtual-dtor")
+			add_flags_cxx("-Wno-error=covered-switch-default -Wno-error=shadow")
+			add_flags_cxx("-Wno-error=exit-time-destructors -Wno-error=missing-variable-declarations")
+			add_flags_cxx("-Wno-error=global-constructors -Wno-implicit-fallthrough")
+			add_flags_cxx("-Wno-weak-vtables -Wno-switch-enum -Wno-exit-time-destructors")
+		endif()
+	endif()
+
+endmacro()