CMAKE: allow to easily disable stacktraces

Mingw64 doesn't like this out of the box atm.

CMakeLists.txt

@@ -70,6 +70,7 @@ set(DB_PW "engine" CACHE STRING "The database password")
 set(SERVER_PORT "11337" CACHE STRING "Port where the server is listening on")
 set(HTTP_SERVER_PORT "8080" CACHE STRING "Port where the http server is listening on")
 set(DOCKER_REGISTRY "" CACHE STRING "Docker registry")
+option(USE_STACKTRACES "Enable stacktraces" ON)
 
 if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
 	set(WINDOWS 1)

src/modules/core/Assert.cpp

@@ -6,8 +6,6 @@
 #include <SDL_stdinc.h>
 #include <SDL_log.h>
 
-#define HAVE_BACKWARD
-
 #ifdef HAVE_BACKWARD
 #include <backward.h>
 #endif

src/modules/core/CMakeLists.txt

@@ -76,12 +76,21 @@ if (WINDOWS)
 	set_property(GLOBAL PROPERTY ${LIB}_NOUNITY TRUE)
 endif()
 
-set(LIBS sdl2 glm backward ${CMAKE_DL_LIBS})
+set(LIBS sdl2 glm ${CMAKE_DL_LIBS})
+
+if (USE_STACKTRACES)
+	list(APPEND LIBS backward)
+endif()
+
 engine_add_module(TARGET ${LIB} SRCS ${SRCS} DEPENDENCIES ${LIBS})
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/tracy/TracyClient.cpp)
 	target_compile_definitions(${LIB} PUBLIC TRACY_ENABLE TRACY_ON_DEMAND)
 endif()
 
+if (USE_STACKTRACES)
+	target_compile_definitions(${LIB} PRIVATE HAVE_BACKWARD)
+endif()
+
 set(TEST_SRCS
 	tests/TestHelper.h
 	tests/AlgorithmTest.cpp