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-rw-r--r--include/ruby/intern.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index fd37ecab2a..87f5741425 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -200,6 +200,7 @@ PRINTF_ARGS(void rb_compile_error_append(const char*, ...), 1, 2);
NORETURN(void rb_load_fail(const char*));
NORETURN(void rb_error_frozen(const char*));
void rb_check_frozen(VALUE);
+char *rb_strerrno(int);
/* eval.c */
int rb_sourceline(void);
const char *rb_sourcefile(void);