The context is actually used in vmg_sv_magicuvar() for sv_magic()

diff --git a/Magic.xs b/Magic.xs
index ec49843183def6fa826c8f2edd5e5d5712f11a7c..49ba4719ee5efea79f8a8613fb30a23b86b06a08 100644 (file)
--- a/Magic.xs
+++ b/Magic.xs
@@ -155,7 +155,6 @@ STATIC void vmg_sv_magicuvar(pTHX_ SV *sv, const char *uf, I32 len) {
  const MAGIC* mg;
  sv_magic(sv, NULL, PERL_MAGIC_uvar, uf, len);
  /* uvar magic has set and get magic, hence this has set SVs_GMG and SVs_SMG. */
- PERL_UNUSED_CONTEXT;
  if ((mg = SvMAGIC(sv))) {
   SvRMAGICAL_off(sv);
   do {