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Set atomics workaround if needed

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Magne Sjaastad 2014-04-15 08:51:18 +02:00
parent 48d6986954
commit 922d76cd91
1 changed files with 13 additions and 3 deletions
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16
CMakeLists.txt
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@ -97,9 +97,19 @@ find_package( OpenGL )
################################################################################
# Allow use of non-threadsafe reference counter in cvf::Object on systems with no atomics support
option(RESINSIGHT_WORKAROUND_ON_SYSTEMS_WITHOUT_ATOMICS "Allow use of non-threadsafe reference counter on systems with no atomics support" OFF)
if (RESINSIGHT_WORKAROUND_ON_SYSTEMS_WITHOUT_ATOMICS)
add_definitions(-DCVF_WORKAROUND_TO_COMPILE_ON_SYSTEMS_WITHOUT_ATOMICS)
if (CMAKE_COMPILER_IS_GNUCC)
check_c_source_compiles("int main(int argc, char **argv) {
int a;
__sync_add_and_fetch(&a, 1);
__sync_fetch_and_add(&a, 1);
__sync_sub_and_fetch(&a, 1);
__sync_fetch_and_sub(&a, 1); }" HAVE_GCC_ATOMICS)
if (NOT HAVE_GCC_ATOMITCS)
add_definitions(-DCVF_WORKAROUND_TO_COMPILE_ON_SYSTEMS_WITHOUT_ATOMICS)
endif()
endif()
add_subdirectory(${VIZ_MODULES_FOLDER_NAME}/LibCore)