dependencies

check compiler version

CMakeLists.txt

@@ -47,6 +47,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 find_package(Filesystem REQUIRED)
 
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
+	# https://stackoverflow.com/questions/63902528/program-crashes-when-filesystempath-is-destroyed
 	if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS_EQUAL 8.4.0)
 		message(WARNING "Your gnu compiler is perhaps too old, please use a more recent one if you get a segmentation in the build process when running symop-map-generator")
 	endif()

Config.cmake.in

 @PACKAGE_INIT@
 
+include(CMakeFindDependencyMacro)
+find_dependency(Boost 1.70.0 REQUIRED COMPONENTS system iostreams regex program_options)
+
 INCLUDE("${CMAKE_CURRENT_LIST_DIR}/cifppTargets.cmake")
 
 set_and_check(CIFPP_INCLUDE_DIR "@PACKAGE_INCLUDE_INSTALL_DIR@")

cmake/FindFilesystem.cmake

@@ -27,12 +27,17 @@ int main() {
 }
 ]])
 
-# Check a simple filesystem program without any linker flags
-check_cxx_source_compiles("${code}" CXX_FILESYSTEM_NO_LINK_NEEDED)
-
-set(_found ${CXX_FILESYSTEM_NO_LINK_NEEDED})
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS_EQUAL 8.4.0)
+	# >> https://stackoverflow.com/questions/63902528/program-crashes-when-filesystempath-is-destroyed
+	set(CXX_FILESYSTEM_NO_LINK_NEEDED 0)
+else()
+	# Check a simple filesystem program without any linker flags
+	check_cxx_source_compiles("${code}" CXX_FILESYSTEM_NO_LINK_NEEDED)
+endif()
 
-if(NOT CXX_FILESYSTEM_NO_LINK_NEEDED)
+if(CXX_FILESYSTEM_NO_LINK_NEEDED)
+	set(_found 1)
+else()
 	set(prev_libraries ${CMAKE_REQUIRED_LIBRARIES})
 	# Add the libstdc++ flag
 	set(CMAKE_REQUIRED_LIBRARIES ${prev_libraries} -lstdc++fs)