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 "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /LTCG") # Make build use Unicode: add_definitions(-DUNICODE -D_UNICODE) elseif(APPLE) if("${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() elseif (ANDROID) 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") add_flags_cxx("-fsigned-char") 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 ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION ) endif() if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "arm") # mbed TLS uses the frame pointer's register in inline assembly: # https://tls.mbed.org/kb/development/arm-thumb-error-r7-cannot-be-used-in-asm-here set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fomit-frame-pointer") set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fomit-frame-pointer") 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 NO_NATIVE_OPTIMIZATION) add_flags_cxx("-march=native") endif() if(CROSSCOMPILE) message(FATAL_ERROR "The CROSSCOMPILE flag has been renamed to NO_NATIVE_OPTIMIZATION. Please update your build scripts to compile Cuberite.") 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 "Cuberite requires clang version 3.0 or higher, your version is ${CLANG_VERSION}") endif() # clang does not provide the __extern_always_inline macro and a part of libm depends on this when using fast-math add_flags_cxx("-D__extern_always_inline=inline") add_flags_cxx("-Weverything -Werror -Wno-c++98-compat-pedantic -Wno-string-conversion") add_flags_cxx("-Wno-exit-time-destructors -Wno-padded -Wno-weak-vtables") add_flags_cxx("-Wno-switch-enum") # This is a pretty useless warning, we've already got -Wswitch which is what we need if ("${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) include(CheckCXXCompilerFlag) check_cxx_compiler_flag(-Wno-reserved-id-macro HAS_NO_RESERVED_ID_MACRO) check_cxx_compiler_flag(-Wno-documentation-unknown-command HAS_NO_DOCUMENTATION_UNKNOWN) 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() if (HAS_NO_DOCUMENTATION_UNKNOWN) # Ignore another problem in sqlite add_flags_cxx("-Wno-documentation-unknown-command") endif() endif() if ("${CLANG_VERSION}" VERSION_GREATER 3.5) add_flags_cxx("-Wno-error=disabled-macro-expansion") endif() if ("${CLANG_VERSION}" VERSION_GREATER 3.7) check_cxx_compiler_flag(-Wno-double-promotion HAS_NO_DOUBLE_PROMOTION) if (HAS_NO_DOUBLE_PROMOTION) add_flags_cxx("-Wno-double-promotion") endif() endif() add_flags_cxx("-Wno-error=unused-command-line-argument") add_flags_cxx("-Wno-documentation-unknown-command") 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()