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zstd/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake

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Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
include(CheckCXXCompilerFlag)
include(CheckCCompilerFlag)
function(EnableCompilerFlag _flag _C _CXX)
CMake: don't recheck compile flags every time Doesn't cause a problem when embedded within a larger project, but is annoying.
2017-04-20 15:54:17 -07:00
string(REGEX REPLACE "\\+" "PLUS" varname "${_flag}")
string(REGEX REPLACE "[^A-Za-z0-9]+" "_" varname "${varname}")
string(REGEX REPLACE "^_+" "" varname "${varname}")
string(TOUPPER "${varname}" varname)
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
if (_C)
CMake: don't recheck compile flags every time Doesn't cause a problem when embedded within a larger project, but is annoying.
2017-04-20 15:54:17 -07:00
CHECK_C_COMPILER_FLAG(${_flag} C_FLAG_${varname})
if (C_FLAG_${varname})
CMake: don't modify global C_FLAGS and CXX_FLAGS
2017-04-20 15:55:48 -07:00
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_flag}" PARENT_SCOPE)
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
endif ()
endif ()
if (_CXX)
CMake: don't recheck compile flags every time Doesn't cause a problem when embedded within a larger project, but is annoying.
2017-04-20 15:54:17 -07:00
CHECK_CXX_COMPILER_FLAG(${_flag} CXX_FLAG_${varname})
if (CXX_FLAG_${varname})
CMake: don't modify global C_FLAGS and CXX_FLAGS
2017-04-20 15:55:48 -07:00
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_flag}" PARENT_SCOPE)
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
endif ()
endif ()
endfunction()
STYLE: Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case.
2018-12-22 17:31:59 -08:00
macro(ADD_ZSTD_COMPILATION_FLAGS)
CMake: Fix version parsing and allow Unix flags on Clang
2017-03-21 13:44:33 -07:00
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang" OR MINGW) #Not only UNIX but also WIN32 for MinGW
CMake build (Linux and Windows MSVC tested only) integration support added;
2016-01-07 02:37:00 -08:00
#Set c++11 by default
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
EnableCompilerFlag("-std=c++11" false true)
CMake build (Linux and Windows MSVC tested only) integration support added;
2016-01-07 02:37:00 -08:00
#Set c99 by default
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
EnableCompilerFlag("-std=c99" true false)
EnableCompilerFlag("-Wall" true true)
EnableCompilerFlag("-Wextra" true true)
EnableCompilerFlag("-Wundef" true true)
EnableCompilerFlag("-Wshadow" true true)
EnableCompilerFlag("-Wcast-align" true true)
EnableCompilerFlag("-Wcast-qual" true true)
EnableCompilerFlag("-Wstrict-prototypes" true false)
elseif (MSVC) # Add specific compilation flags for Windows Visual
CMake build (Linux and Windows MSVC tested only) integration support added;
2016-01-07 02:37:00 -08:00
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
set(ACTIVATE_MULTITHREADED_COMPILATION "ON" CACHE BOOL "activate multi-threaded compilation (/MP flag)")
CMake improvements
2017-05-24 01:48:10 -07:00
if (CMAKE_GENERATOR MATCHES "Visual Studio" AND ACTIVATE_MULTITHREADED_COMPILATION)
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
EnableCompilerFlag("/MP" true true)
endif ()
CMake structure reorganized; install and uninstall targets added;
2016-01-10 03:20:52 -08:00
# UNICODE SUPPORT
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
EnableCompilerFlag("/D_UNICODE" true true)
EnableCompilerFlag("/DUNICODE" true true)
CMake build (Linux and Windows MSVC tested only) integration support added;
2016-01-07 02:37:00 -08:00
endif ()
# Remove duplicates compilation flags
STYLE: Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case.
2018-12-22 17:31:59 -08:00
foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
separate_arguments(${flag_var})
list(REMOVE_DUPLICATES ${flag_var})
string(REPLACE ";" " " ${flag_var} "${${flag_var}}")
STYLE: Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style.
2018-12-22 17:31:50 -08:00
endforeach ()
CMake build (Linux and Windows MSVC tested only) integration support added;
2016-01-07 02:37:00 -08:00
CMake improvements
2017-05-24 01:48:10 -07:00
if (MSVC AND ZSTD_USE_STATIC_RUNTIME)
STYLE: Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case.
2018-12-22 17:31:59 -08:00
foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
Refactored AddExtraCompilationFlags - Easier addition of new flags - Removed flags not used by default - Removed implicit PIC flag for all targets
2017-03-16 08:24:33 -07:00
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
STYLE: Convert CMake-language commands to lower case Ancient CMake versions required upper-case commands. Later command names became case-insensitive. Now the preferred style is lower-case.
2018-12-22 17:31:59 -08:00
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
STYLE: Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style.
2018-12-22 17:31:50 -08:00
endforeach ()
CMake build (Linux and Windows MSVC tested only) integration support added;
2016-01-07 02:37:00 -08:00
endif ()
STYLE: Remove CMake-language block-end command arguments Ancient versions of CMake required else(), endif(), and similar block termination commands to have arguments matching the command starting the block. This is no longer the preferred style.
2018-12-22 17:31:50 -08:00
endmacro()