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-rw-r--r--src/internal/stdio_impl.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h
index 279e91fd..80646f8c 100644
--- a/src/internal/stdio_impl.h
+++ b/src/internal/stdio_impl.h
@@ -74,10 +74,10 @@ size_t __string_read(FILE *, unsigned char *, size_t);
int __toread(FILE *);
int __towrite(FILE *);
-int __overflow(FILE *, int);
-int __oflow(FILE *);
-int __uflow(FILE *);
-int __underflow(FILE *);
+#if defined(__PIC__) && (100*__GNUC__+__GNUC_MINOR__ >= 303)
+__attribute__((visibility("protected")))
+#endif
+int __overflow(FILE *, int), __uflow(FILE *);
int __fseeko(FILE *, off_t, int);
int __fseeko_unlocked(FILE *, off_t, int);