fix: add option to disable ABI0

Author: qubka

CMakeLists.txt

@@ -26,6 +26,8 @@ set(PROJECT_LICENSE "MIT")
 string(TIMESTAMP PROJECT_BUILD_DATE "%Y-%m-%d")
 string(TIMESTAMP PROJECT_BUILD_TIME "%H:%M:%S")
 
+option(DYNLIBUTILS_USE_ABI0 "Enable use of the older C++ ABI, which was the default in GCC versions before GCC 5" ON)
+
 set(EXTERNAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external")
 set(INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/include")
 set(SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/src")

cmake/platform/linux.cmake

@@ -23,5 +23,5 @@ endif()
 set(PLATFORM_COMPILE_DEFINITIONS
 	${PLATFORM_COMPILE_DEFINITIONS}
 
-	_GLIBCXX_USE_CXX11_ABI=0
+	_GLIBCXX_USE_CXX11_ABI=$<IF:$<BOOL:${DYNLIBUTILS_USE_ABI0}>,0,1>
 )