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# This files manage compilation flags required by GUDHI
include(TestCXXAcceptsFlag)
include(CheckCXXSourceCompiles)
# add a compiler flag only if it is accepted
macro(add_cxx_compiler_flag _flag)
string(REPLACE "-" "_" "/" _flag_var ${_flag})
check_cxx_accepts_flag("${_flag}" CXX_COMPILER_${_flag_var}_OK)
if(CXX_COMPILER_${_flag_var}_OK)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_flag}")
endif()
endmacro()
function(can_cgal_use_cxx11_thread_local)
# This is because of https://github.com/CGAL/cgal/blob/master/Installation/include/CGAL/tss.h
# CGAL is using boost thread if thread_local is not ready (requires XCode 8 for Mac).
# The test in https://github.com/CGAL/cgal/blob/master/Installation/include/CGAL/config.h
# #if __has_feature(cxx_thread_local) || \
# ( (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L ) || \
# ( _MSC_VER >= 1900 )
# #define CGAL_CAN_USE_CXX11_THREAD_LOCAL
# #endif
set(CGAL_CAN_USE_CXX11_THREAD_LOCAL "
int main() {
#ifndef __has_feature
#define __has_feature(x) 0 // Compatibility with non-clang compilers.
#endif
#if __has_feature(cxx_thread_local) || \
( (__GNUC__ * 100 + __GNUC_MINOR__) >= 408 && __cplusplus >= 201103L ) || \
( _MSC_VER >= 1900 )
bool has_feature_thread_local = true;
#else
// Explicit error of compilation for CMake test purpose - has_feature_thread_local is not defined
#endif
bool result = has_feature_thread_local;
} ")
check_cxx_source_compiles("${CGAL_CAN_USE_CXX11_THREAD_LOCAL}" CGAL_CAN_USE_CXX11_THREAD_LOCAL_RESULT)
endfunction()
set (CMAKE_CXX_STANDARD 14)
enable_testing()
if(MSVC)
add_cxx_compiler_flag("/W3")
else()
add_cxx_compiler_flag("-Wall")
# Only for dev version
if(PROJECT_NAME STREQUAL "GUDHIdev")
add_cxx_compiler_flag("-pedantic")
endif()
endif()
if (DEBUG_TRACES)
# For programs to be more verbose
message(STATUS "DEBUG_TRACES are activated")
add_definitions(-DDEBUG_TRACES)
endif()
set(GUDHI_CAN_USE_CXX11_THREAD_LOCAL "
int main() {
thread_local int result = 0;
return result;
} ")
check_cxx_source_compiles("${GUDHI_CAN_USE_CXX11_THREAD_LOCAL}" GUDHI_CAN_USE_CXX11_THREAD_LOCAL_RESULT)
if (GUDHI_CAN_USE_CXX11_THREAD_LOCAL_RESULT)
add_definitions(-DGUDHI_CAN_USE_CXX11_THREAD_LOCAL)
endif()
if(CMAKE_BUILD_TYPE MATCHES Debug)
message("++ Debug compilation flags are: ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_DEBUG}")
else()
message("++ Release compilation flags are: ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_RELEASE}")
endif()
option(WITH_GUDHI_BOOST_TEST_COVERAGE "Report xml coverage files on boost tests" OFF)
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