added gold linker

CMakeLists.txt

@@ -10,6 +10,9 @@ if (NOT TARGET glfw)
     message(FATAL_ERROR "'glfw' target must be available (missing add_subdirectory or wrong order? NOTE: this is currently a requirement)")
 endif()
 
+# Options
+set(TG_USE_GOLD_LINKER ON CACHE BOOL "If true, ld.gold is used for linking")
+
 
 # ===============================================
 # Create target
@@ -32,6 +35,12 @@ target_link_libraries(typed-graphics PUBLIC
     glfw
 )
 
+# gold linker
+if(TG_USE_GOLD_LINKER)
+    # WRONG: target_compile_options(glow PUBLIC -fuse-ld=gold )
+    target_link_libraries(typed-graphics PUBLIC -fuse-ld=gold)
+endif()
+
 # Optional dependencies
 if (TARGET aion)
     target_link_libraries(typed-graphics PUBLIC aion)