+set(QT_LIBRARIES Qt5::Gui Qt5::Widgets Qt5::Svg)
+
+set(BOOSTCOMPS filesystem serialization system)
+if(ENABLE_TESTS)
+ list(APPEND BOOSTCOMPS unit_test_framework)
+endif()
+
+if(ENABLE_STACKTRACE)
+ find_package(Boost 1.65.1 COMPONENTS ${BOOSTCOMPS} REQUIRED)
+else()
+ find_package(Boost 1.55 COMPONENTS ${BOOSTCOMPS} REQUIRED)
+endif()
+
+# Find the platform's thread library (needed for C++11 threads).
+# This will set ${CMAKE_THREAD_LIBS_INIT} to the correct, OS-specific value.
+find_package(Threads REQUIRED)
+
+# Check for explicit link against libatomic
+#
+# Depending on the toolchain, linking a program using atomic functions may need
+# "-latomic" explicitly passed to the linker
+#
+# This check first tests if atomics are available in the C-library, if not and
+# libatomic exists, then it runs the same test with -latomic added to the
+# linker flags.
+
+# Helper for checking for atomics
+function(check_working_cxx_atomics varname additional_lib)
+ include(CheckCXXSourceCompiles)
+ include(CMakePushCheckState)
+ cmake_push_check_state()
+ set(CMAKE_REQUIRED_FLAGS "-std=c++11")
+ set(CMAKE_REQUIRED_LIBRARIES "${additional_lib}")
+ set(CMAKE_REQUIRED_QUIET 1)
+ CHECK_CXX_SOURCE_COMPILES("
+#include <atomic>
+std::atomic<int> x;
+int main() {
+ return std::atomic_fetch_add_explicit(&x, 1, std::memory_order_seq_cst);
+}
+" ${varname})
+ cmake_pop_check_state()
+endfunction(check_working_cxx_atomics)
+
+# First check if atomics work without the library.
+# If not, check if the library exists, and atomics work with it.
+check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITHOUT_LIB "")
+if(HAVE_CXX_ATOMICS_WITHOUT_LIB)
+ message(STATUS "Atomics provided by the C-library - yes")