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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} ${FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS_COVERAGE "${CMAKE_EXE_LINKER_FLAGS_COVERAGE} ${FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${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} ${FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS_COVERAGE "${CMAKE_SHARED_LINKER_FLAGS_COVERAGE} ${FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${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} ${FLAGS}")
set(CMAKE_MODULE_LINKER_FLAGS_COVERAGE "${CMAKE_MODULE_LINKER_FLAGS_COVERAGE} ${FLAGS}")
set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${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} ${FLAGS}")
endmacro()
#this is a hack because we can't use cmake 2.8.10 because of travis
macro(get_clang_version)
execute_process(
COMMAND "${CMAKE_CXX_COMPILER}" "--version"
OUTPUT_VARIABLE CLANG_VERSION_OUTPUT)
string(REGEX MATCH "version ([0-9]\\.[0-9])" x ${CLANG_VERSION_OUTPUT})
set(CLANG_VERSION ${CMAKE_MATCH_1})
endmacro()
macro(set_flags)
# Add coverage processing, if requested:
if (NOT MSVC)
if (CMAKE_BUILD_TYPE STREQUAL "COVERAGE")
message("Including CodeCoverage")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/lib/cmake-coverage/")
include(CodeCoverage)
endif()
endif()
# 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_COVERAGE "${CMAKE_CXX_FLAGS_COVERAGE} -D_DEBUG")
set(CMAKE_C_FLAGS_COVERAGE "${CMAKE_C_FLAGS_COVERAGE} -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 "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /LTCG")
elseif(APPLE)
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion
OUTPUT_VARIABLE GCC_VERSION)
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -std=c++11")
set(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_COVERAGE} -std=c++11")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++11")
#on os x clang adds pthread for us but we need to add it for gcc
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
add_flags_cxx("-stdlib=libc++")
add_flags_lnk("-stdlib=libc++")
else()
add_flags_cxx("-pthread")
endif()
else()
# Let gcc / clang know that we're compiling a multi-threaded app:
if (${UNIX})
add_flags_cxx("-pthread")
add_flags_lnk("-pthread")
endif()
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion
OUTPUT_VARIABLE GCC_VERSION)
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -std=c++11")
set(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_COVERAGE} -std=c++11")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++11")
# We use a signed char (fixes #640 on RasPi)
add_flags_cxx("-fsigned-char")
endif()
# Allow for a forced 32-bit build under 64-bit OS:
if (FORCE_32)
add_flags_cxx("-m32")
add_flags_lnk("-m32")
endif()
# Have the compiler generate code specifically targeted at the current machine on Linux
if(LINUX AND NOT CROSSCOMPILE)
add_flags_cxx("-march=native")
endif()
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
get_clang_version()
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")
set(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_COVERAGE} -w")
set(CMAKE_C_FLAGS_COVERAGE "${CMAKE_C_FLAGS_COVERAGE} -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(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
set(DYNAMIC_LOADER ltdl)
else()
set(DYNAMIC_LOADER dl)
endif()
endif()
endmacro()
macro(enable_profile)
# Declare the flags used for profiling builds:
if (MSVC)
set (CXX_PROFILING "/Zi")
set (LNK_PROFILING "/PROFILE /DEBUG")
else()
set (CXX_PROFILING "-pg")
set (LNK_PROFILING "-pg")
endif()
# Declare the profiling configurations:
SET(CMAKE_CXX_FLAGS_DEBUGPROFILE
"${CMAKE_CXX_FLAGS_DEBUG} ${CXX_PROFILING}"
CACHE STRING "Flags used by the C++ compiler during profile builds."
FORCE )
SET(CMAKE_C_FLAGS_DEBUGPROFILE
"${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} ${LNK_PROFILING}"
CACHE STRING "Flags used by the shared libraries linker during profile builds."
FORCE )
MARK_AS_ADVANCED(
CMAKE_CXX_FLAGS_RELEASEPROFILE
CMAKE_C_FLAGS_RELEASEPROFILE
CMAKE_EXE_LINKER_FLAGS_RELEASEPROFILE
CMAKE_SHARED_LINKER_FLAGS_RELEASEPROFILE )
# The configuration types need to be set after their respective c/cxx/linker flags and before the project directive
if(MSVC)
set(CMAKE_CONFIGURATION_TYPES "Debug;Release;DebugProfile;ReleaseProfile" CACHE STRING "" FORCE)
else()
set(CMAKE_CONFIGURATION_TYPES "Debug;Release;DebugProfile;ReleaseProfile;Coverage" CACHE STRING "" FORCE)
endif()
endmacro()
macro(set_exe_flags)
# Remove disabling the maximum warning level:
# clang does not like a command line that reads -Wall -Wextra -w -Wall -Wextra and does not output any warnings
# We do not do that for MSVC since MSVC produces an awful lot of warnings for its own STL headers;
# the important warnings are turned on using #pragma in Globals.h
if (NOT MSVC)
string(REPLACE "-w" "" CMAKE_CXX_FLAGS_RELEASE "${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 "${CMAKE_C_FLAGS_DEBUG}")
string(REPLACE "-w" "" CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_CXX_FLAGS_COVERAGE}")
string(REPLACE "-w" "" CMAKE_C_FLAGS_COVERAGE "${CMAKE_C_FLAGS_COVERAGE}")
add_flags_cxx("-Wall -Wextra -Wno-unused-parameter")
# we support non-IEEE 754 fpus so can make no guarentees about error
add_flags_cxx("-ffast-math")
if(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
# backtrace() and friends are in libexecinfo
add_flags_lnk("-lexecinfo")
endif()
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
if ("${CLANG_VERSION}" VERSION_LESS 3.0)
message(FATAL_ERROR "MCServer requires clang version 3.0 or higher, version is ${CLANG_VERSION}")
endif()
# clang does not provide the __extern_always_inline macro and a part of libm depends on this when using fast-math
add_flags_cxx("-D__extern_always_inline=inline")
add_flags_cxx("-Weverything -Werror -Wno-c++98-compat-pedantic -Wno-string-conversion")
add_flags_cxx("-Wno-exit-time-destructors -Wno-padded -Wno-weak-vtables")
if ("${CLANG_VERSION}" VERSION_GREATER 3.0)
# flags that are not present in 3.0
add_flags_cxx("-Wno-implicit-fallthrough")
endif()
if ("${CLANG_VERSION}" VERSION_GREATER 3.1)
# flags introduced in 3.2
add_flags_cxx("-Wno-documentation")
endif()
if ("${CLANG_VERSION}" VERSION_GREATER 3.5)
check_cxx_compiler_flag(-Wno-reserved-id-macro HAS_NO_RESERVED_ID_MACRO)
if (HAS_NO_RESERVED_ID_MACRO)
# Use this flag to ignore error for a reserved macro problem in sqlite 3
add_flags_cxx("-Wno-reserved-id-macro")
endif()
endif()
endif()
endif()
endmacro()
# if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
# foreach(FILENAME ${ARGN})
# message("downgrade_warnings for ${FILENAME}")
# set_source_files_properties(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-error=sign-conversion -Wno-error=conversion")
# set_source_files_properties(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-error=missing-prototypes -Wno-error=deprecated")
# set_source_files_properties(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-error=shadow -Wno-error=old-style-cast -Wno-error=switch-enum -Wno-error=switch")
# set_source_files_properties(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-error=float-equal -Wno-error=global-constructors")
# if ("${CLANG_VERSION}" VERSION_GREATER 3.0)
# # flags that are not present in 3.0
# set_source_files_properties(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-error=covered-switch-default ")
# set_source_files_properties(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-implicit-fallthrough -Wno-error=extra-semi")
# set_source_files_properties(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-error=missing-variable-declarations")
# endif()
# endforeach()
# endif()
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