Workaround 'address of auto-variable returned' cppcheck error

(back-port of commit b51bdee1 from 'master')

* mark_rts.c [CPPCHECK] (GC_approx_sp): Use __builtin_frame_address.

diff --git a/mark_rts.c b/mark_rts.c
index 650b7d0e399de5d1bf52bc18d36a3209c6e9e6b5..377774874f45e1309e933b40f6b3967ad49ac7da 100644 (file)
--- a/mark_rts.c
+++ b/mark_rts.c
@@ -391,7 +391,7 @@ STATIC void GC_remove_tmp_roots(void)
 GC_INNER ptr_t GC_approx_sp(void)
 {
     volatile word sp;
-#   if defined(__GNUC__) && (__GNUC__ >= 4)
+#   if defined(CPPCHECK) || (__GNUC__ >= 4)
         sp = (word)__builtin_frame_address(0);
 #   else
         sp = (word)&sp;