--- gcc-versionno-orig/gcc/cp/g++spec.c	2019-11-14 21:02:37.000000000 +0000
+++ gcc-versionno/gcc/cp/g++spec.c	2019-11-14 21:27:29.435107798 +0000
@@ -403,3 +403,9 @@
 
 /* Number of extra output files that lang_specific_pre_link may generate.  */
 int lang_specific_extra_outfiles = 0;  /* Not used for C++.  */
+
+/* lang_register_spec_functions.  Not used for C++.  */
+void
+lang_register_spec_functions (void)
+{
+}
