diff options
Diffstat (limited to 'SetFlags.cmake')
| -rw-r--r-- | SetFlags.cmake | 302 |
1 files changed, 72 insertions, 230 deletions
diff --git a/SetFlags.cmake b/SetFlags.cmake index 1a154dd24..a65f3ecd7 100644 --- a/SetFlags.cmake +++ b/SetFlags.cmake @@ -1,5 +1,3 @@ - - 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} ${FLAGS}") @@ -20,156 +18,6 @@ macro(add_flags_cxx FLAGS) set(CMAKE_C_FLAGS "${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 "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /LTCG") - - # Make MSVC generate the PDB files even for the release build - # (TODO: have AppVeyor build RelWithDebInfo and remove): - set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi") - set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Zi") - set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /DEBUG") - set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG") - set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} /DEBUG") - - # Make build use Unicode: - add_definitions(-DUNICODE -D_UNICODE) - elseif(APPLE) - - if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") - execute_process( - COMMAND ${CMAKE_C_COMPILER} -dumpversion - OUTPUT_VARIABLE GCC_VERSION - ) - endif() - - #on os x clang adds pthread for us but we need to add it for gcc - if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") - add_flags_cxx("-stdlib=libc++") - add_flags_lnk("-stdlib=libc++") - else() - add_flags_cxx("-pthread") - endif() - elseif (ANDROID) - 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 ${CMAKE_C_COMPILER} -dumpversion - OUTPUT_VARIABLE GCC_VERSION - ) - endif() - - # We use a signed char (fixes #640 on RasPi) - add_flags_cxx("-fsigned-char") - - endif() - - - # Allow for a forced 32-bit build under 64-bit OS: - if (FORCE_32) - add_flags_cxx("-m32") - add_flags_lnk("-m32") - endif() - - - # Have the compiler generate code specifically targeted at the current machine on Linux - if(LINUX AND NOT NO_NATIVE_OPTIMIZATION) - add_flags_cxx("-march=native") - endif() - - if(CROSSCOMPILE) - message(FATAL_ERROR "The CROSSCOMPILE flag has been renamed to NO_NATIVE_OPTIMIZATION. Please update your build scripts to compile Cuberite.") - endif() - - if ("${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(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD") - set(DYNAMIC_LOADER ltdl) - else() - set(DYNAMIC_LOADER dl) - endif() - endif() -endmacro() - macro(enable_profile) # Declare the flags used for profiling builds: if (MSVC) @@ -233,87 +81,81 @@ macro(enable_profile) endif() endmacro() -macro(set_exe_flags) - # Remove disabling the maximum warning level: - # clang does not like a command line that reads -Wall -Wextra -w -Wall -Wextra and does not output any warnings - # We do not do that for MSVC since MSVC produces an awful lot of warnings for its own STL headers; - # the important warnings are turned on using #pragma in Globals.h - if (NOT MSVC) - string(REPLACE "-w" "" CMAKE_CXX_FLAGS_RELEASE "${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 -Wno-missing-noreturn") +# Add coverage processing, if requested: +if (NOT MSVC) - # we support non-IEEE 754 fpus so can make no guarentees about error - add_flags_cxx("-ffast-math") + 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() + +# TODO: is this needed? NDEBUG is standard. Also, why are we using _DEBUG? +# 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_compile_options(/MP) + + # Make build use Unicode: + add_compile_definitions(UNICODE _UNICODE) + + # TODO: level 4, warnings as errors +else() + target_compile_options( + ${CMAKE_PROJECT_NAME} PRIVATE - if(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD") - # backtrace() and friends are in libexecinfo - add_flags_lnk("-lexecinfo") - endif() + # We use a signed char (fixes #640 on RasPi) + # TODO: specify this in code, not a compile flag: + -fsigned-char - 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 3.4) - add_flags_cxx("-Wno-error=disabled-macro-expansion") - 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 3.7) - 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() + # We support non-IEEE 754 FPUs so can make no guarantees about error: + -ffast-math -endmacro() + # All warnings: + -Wall -Wextra + + # TODO: actually fix the warnings instead of disabling them + # or at least disable on a file-level basis: + -Wno-unused-parameter -Wno-missing-noreturn -Wno-padded -Wno-implicit-fallthrough + -Wno-double-promotion -# 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(${FILENAME} PROPERTIES COMPILE_FLAGS "-Wno-error=float-equal -Wno-error=global-constructors") + # This is a pretty useless warning, we've already got -Wswitch which is what we need: + -Wno-switch-enum + ) -# if ("${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() + if(CMAKE_CXX_COMPILE_ID STREQUAL "Clang") + target_compile_options( + ${CMAKE_PROJECT_NAME}Cuberite PRIVATE + + # Warnings-as-errors only on Clang for now: + -Werror + + # Weverything with Clang exceptions: + -Weverything -Wno-error=disabled-macro-expansion -Wno-weak-vtables + -Wno-exit-time-destructors -Wno-string-conversion -Wno-c++98-compat-pedantic + -Wno-documentation -Wno-documentation-unknown-command -Wno-reserved-id-macro + -Wno-error=unused-command-line-argument + ) + endif() +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() |