RTLD_DEEPBIND isn't available on non-Linux

source/lib/ze_lib.cpp:32:18: error: use of undeclared identifier 'RTLD_DEEPBIND'
        loader = LOAD_DRIVER_LIBRARY( MAKE_LIBRARY_NAME( "ze_loader", L0_LOADER_VERSION) );
                 ^
source/inc/ze_util.h:28:71: note: expanded from macro 'LOAD_DRIVER_LIBRARY'
#  define LOAD_DRIVER_LIBRARY(NAME) dlopen(NAME, RTLD_LAZY|RTLD_LOCAL|RTLD_DEEPBIND)
                                                                      ^
--- source/inc/ze_util.h.orig	2020-12-01 20:48:33 UTC
+++ source/inc/ze_util.h
@@ -25,7 +25,11 @@
 #  define HMODULE void*
 #  define MAKE_LIBRARY_NAME(NAME, VERSION)    "lib" NAME ".so." VERSION
 #  define MAKE_LAYER_NAME(NAME)    "lib" NAME ".so." L0_VALIDATION_LAYER_SUPPORTED_VERSION
+#  ifdef RTLD_DEEPBIND
 #  define LOAD_DRIVER_LIBRARY(NAME) dlopen(NAME, RTLD_LAZY|RTLD_LOCAL|RTLD_DEEPBIND)
+#  else
+#  define LOAD_DRIVER_LIBRARY(NAME) dlopen(NAME, RTLD_LAZY|RTLD_LOCAL)
+#  endif
 #  define FREE_DRIVER_LIBRARY(LIB)  if(LIB) dlclose(LIB)
 #  define GET_FUNCTION_PTR(LIB, FUNC_NAME) dlsym(LIB, FUNC_NAME)
 #endif