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-rw-r--r--fetchmail.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fetchmail.h b/fetchmail.h
index 8b14e918..afb976d2 100644
--- a/fetchmail.h
+++ b/fetchmail.h
@@ -420,7 +420,7 @@ extern char *sdps_envfrom;
extern char *sdps_envto;
#endif /* SDPS_ENABLE */
-extern char *iana_charset; /* IANA assigned charset name */
+extern const char *iana_charset; /* IANA assigned charset name */
/* from ucs/norm_charmap.c */
const char *norm_charmap(const char *name);