1 files changed, 10 insertions, 0 deletions
diff --git a/error.c b/error.c
index 214d12df5d..5a0184fa48 100644
--- a/error.c
+++ b/error.c
@@ -124,16 +124,26 @@ rb_syntax_error_append(VALUE exc, VALUE file, int line, int column,
 void
 rb_compile_error_with_enc(const char *file, int line, void *enc, const char *fmt, ...)
 {
+    ONLY_FOR_INTERNAL_USE("rb_compile_error_with_enc()");
 }
 
 void
 rb_compile_error(const char *file, int line, const char *fmt, ...)
 {
+    ONLY_FOR_INTERNAL_USE("rb_compile_error()");
 }
 
 void
 rb_compile_error_append(const char *fmt, ...)
 {
+    ONLY_FOR_INTERNAL_USE("rb_compile_error_append()");
+}
+
+void
+ruby_only_for_internal_use(const char *func)
+{
+    rb_print_backtrace();
+    rb_fatal("%s is only for internal use and deprecated; do not use", func);
 }
 
 static VALUE