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########################################################
### compiler flags ###
########################################################
SET(USE_PEDANTIC ON CACHE BOOL "Use pedantic compilation options if offered by the compiler")
SET(USE_ASAN OFF CACHE BOOL "Compile everything with AddressSanitizer enabled (GCC/Clang only)")
SET(CXX_COMPILER_ID "(unknown)" CACHE INTERNAL "The C++ compiler id")
SET(CXX_COMPILER_VERSION "0" CACHE INTERNAL "The C++ compiler version")
SET(CXX_COMPILER_VERSION_MAJOR "0" CACHE INTERNAL "The C++ compiler major version")
SET(CXX_COMPILER_VERSION_MINOR "0" CACHE INTERNAL "The C++ compiler minor version")
SET(CXX_COMPILER_VERSION_MINOR_MINOR "0" CACHE INTERNAL "The C++ compiler minor minor version")
IF(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
SET(CXX_COMPILER_ID "GXX")
## determine version number of the compiler
EXECUTE_PROCESS(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion
OUTPUT_VARIABLE CXX_COMPILER_VERSION
)
STRING(STRIP ${CXX_COMPILER_VERSION} CXX_COMPILER_VERSION)
## just to make sure that the compiler version has 3 numbers and 2 dots
## (sometimes, g++ gives, e.g., 4.4 instead of 4.4.0)
STRING(REGEX REPLACE "^([0-9])\\.([0-9])$" "\\1.\\2.0"
CXX_COMPILER_VERSION ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE "([0-9])\\.([0-9])\\.([0-9])$" "\\1"
CXX_COMPILER_VERSION_MAJOR ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE "([0-9])\\.([0-9])\\.([0-9])$" "\\2"
CXX_COMPILER_VERSION_MINOR ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE "([0-9])\\.([0-9])\\.([0-9])$" "\\3"
CXX_COMPILER_VERSION_MINOR_MINOR ${CXX_COMPILER_VERSION})
## -Wconversion flag for GCC
SET(CXX_WARN_CONVERSION OFF CACHE BOOL "Enables warnings for type conversion problems (GCC only)")
IF(CXX_WARN_CONVERSION)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wconversion")
ENDIF()
MESSAGE(STATUS "Compiler checks for conversion: ${CXX_WARN_CONVERSION}")
IF (MT_ENABLE_CUDA)
SET(USE_PEDANTIC OFF)
ENDIF()
SET(BALL_PROJECT_COMPILE_FLAGS "${BALL_PROJECT_COMPILE_FLAGS} -std=c++0x")
# Added -Wno-deprecated-declarations as Eigen3 currently uses binder2nd which spams the compiler output.
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-declarations")
IF(USE_PEDANTIC)
SET(BALL_PROJECT_COMPILE_FLAGS "${BALL_PROJECT_COMPILE_FLAGS} -pedantic")
ENDIF()
IF(USE_ASAN)
SET(BALL_PROJECT_COMPILE_FLAGS "${BALL_PROJECT_COMPILE_FLAGS} -fsanitize=address -fno-omit-frame-pointer")
ENDIF()
## Recommended setting for eclipse, see http://www.cmake.org/Wiki/CMake:Eclipse
IF(CMAKE_GENERATOR STREQUAL "Eclipse CDT4 - Unix Makefiles")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fmessage-length=0")
ENDIF()
ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
SET(CXX_COMPILER_ID "MSVC")
## determine version number of the compiler
SET(CXX_COMPILER_VERSION ${MSVC_VERSION})
STRING(REGEX REPLACE "([0-9])([0-9])([0-9])([0-9])" "\\1\\2"
CXX_COMPILER_VERSION_MAJOR ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE "([0-9])([0-9])([0-9])([0-9])" "\\3\\4"
CXX_COMPILER_VERSION_MINOR ${CXX_COMPILER_VERSION})
## disable min and max macros by default
## see CGAL and BOOST configs for more elaborate explanations
SET(BALL_PROJECT_COMPILE_DEFNS "${BALL_PROJECT_COMPILE_DEFNS} /DNOMINMAX")
## if requested, produce a parallel solution
OPTION(BALL_BUILD_SOLUTION_PARALLEL OFF)
IF (BALL_BUILD_SOLUTION_PARALLEL)
ADD_DEFINITIONS(/MP)
ENDIF()
ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
SET(CXX_COMPILER_ID "Intel")
## determine version number of the compiler
EXECUTE_PROCESS(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion
OUTPUT_VARIABLE CXX_COMPILER_VERSION
)
STRING(STRIP ${CXX_COMPILER_VERSION} CXX_COMPILER_VERSION)
## just to make sure that the compiler version has 3 numbers and 2 dots
## (sometimes, g++ gives, e.g., 4.4 instead of 4.4.0)
STRING(REGEX REPLACE "^([0-9][0-9])\\.([0-9])$" "\\1.\\2.0"
CXX_COMPILER_VERSION ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE "([0-9][0-9])\\.([0-9])\\.([0-9])$" "\\1"
CXX_COMPILER_VERSION_MAJOR ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE "([0-9][0-9])\\.([0-9])\\.([0-9])$" "\\2"
CXX_COMPILER_VERSION_MINOR ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE "([0-9][0-9])\\.([0-9])\\.([0-9])$" "\\3"
CXX_COMPILER_VERSION_MINOR_MINOR ${CXX_COMPILER_VERSION})
ELSEIF(CMAKE_CXX_COMPILER_ID MATCHES ".*Clang") # matches Clang and AppleClang
# using Clang
SET(CXX_COMPILER_ID "LLVM")
## determine version number of the compiler
EXECUTE_PROCESS(COMMAND ${CMAKE_CXX_COMPILER} --version
OUTPUT_VARIABLE CXX_COMPILER_VERSION
)
STRING(STRIP ${CXX_COMPILER_VERSION} CXX_COMPILER_VERSION)
STRING(REGEX REPLACE ".*([0-9])\\.([0-9]).*" "\\1"
CXX_COMPILER_VERSION_MAJOR ${CXX_COMPILER_VERSION})
STRING(REGEX REPLACE ".*([0-9])\\.([0-9]).*" "\\2"
CXX_COMPILER_VERSION_MINOR ${CXX_COMPILER_VERSION})
SET(CXX_COMPILER_VERSION "${CXX_COMPILER_VERSION_MAJOR}.${CXX_COMPILER_VERSION_MINOR}")
SET(BALL_PROJECT_COMPILE_FLAGS "${BALL_PROJECT_COMPILE_FLAGS} -std=c++11")
IF(USE_ASAN)
SET(BALL_PROJECT_COMPILE_FLAGS "${BALL_PROJECT_COMPILE_FLAGS} -fsanitize=address -fno-omit-frame-pointer")
ENDIF()
# Disable "inconsistent missing override" warnings for now, as this is primarily macro-induced
# (e.g., via BALL_EMBEDDABLE) and, unfortunately, won't be resolved until many more parts of our
# code consistently use override specifiers.
SET(BALL_PROJECT_COMPILE_FLAGS "${BALL_PROJECT_COMPILE_FLAGS} -Wno-inconsistent-missing-override")
ENDIF()
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