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-rw-r--r--internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/internal.h b/internal.h
index 8f7ab96cd8..6941586703 100644
--- a/internal.h
+++ b/internal.h
@@ -762,6 +762,7 @@ VALUE rb_file_expand_path_internal(VALUE, VALUE, int, int, VALUE);
VALUE rb_get_path_check_to_string(VALUE, int);
VALUE rb_get_path_check_convert(VALUE, VALUE, int);
void Init_File(void);
+int ruby_is_fd_loadable(int fd);
#ifdef RUBY_FUNCTION_NAME_STRING
# if defined __GNUC__ && __GNUC__ >= 4