Clear default LDFLAGS

sdk/cmake/toolchain.cmake

@@ -15,3 +15,9 @@ set(CMAKE_CXX_COMPILER_WORKS 1)
 
 # Disable standard C libraries
 set(CMAKE_C_STANDARD_LIBRARIES "" CACHE INTERNAL "")
+
+# Clean linker flags
+set(CMAKE_STATIC_LINKER_FLAGS "")
+set(CMAKE_MODULE_LINKER_FLAGS "")
+set(CMAKE_EXE_LINKER_FLAGS "")
+set(CMAKE_SHARED_LINKER_FLAGS "")