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-rw-r--r--gv.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/gv.h b/gv.h
index 6e14f441e5..30a91147f2 100644
--- a/gv.h
+++ b/gv.h
@@ -153,6 +153,8 @@ Return the SV from the GV.
#define GV_ADDWARN 0x04 /* add, but warn if symbol wasn't already there */
#define GV_ADDINEVAL 0x08 /* add, as though we're doing so within an eval */
#define GV_NOINIT 0x10 /* add, but don't init symbol, if type != PVGV */
-
+/* SVf_UTF8 (more accurately the return value from SvUTF8) is also valid
+ as a flag to gv_fetch_pvn_flags, so ensure it lies outside this range.
+*/
#define gv_fullname3(sv,gv,prefix) gv_fullname4(sv,gv,prefix,TRUE)
#define gv_efullname3(sv,gv,prefix) gv_efullname4(sv,gv,prefix,TRUE)