nostdlibc++.patch

Index: gcc/common.opt
===================================================================
--- gcc/common.opt	(revision 245184)
+++ gcc/common.opt	(working copy)
@@ -2928,6 +2928,9 @@
 nostdlib
 Driver
 
+nostdlibc++
+Driver
+
 o
 Common Driver Joined Separate Var(asm_file_name) MissingArgError(missing filename after %qs)
 -o <file>	Place output into <file>.
Index: gcc/cp/g++spec.c
===================================================================
--- gcc/cp/g++spec.c	(revision 245184)
+++ gcc/cp/g++spec.c	(working copy)
@@ -137,6 +137,7 @@
       switch (decoded_options[i].opt_index)
 	{
 	case OPT_nostdlib:
+  case OPT_nostdlibc__:
 	case OPT_nodefaultlibs:
 	  library = -1;
 	  break;
Index: gcc/doc/invoke.texi
===================================================================
--- gcc/doc/invoke.texi	(revision 245184)
+++ gcc/doc/invoke.texi	(working copy)
@@ -11569,6 +11569,12 @@
 constructors are called; @pxref{Collect2,,@code{collect2}, gccint,
 GNU Compiler Collection (GCC) Internals}.)
 
+@item -nostdlibc++
+@opindex nostdlibc++
+Do not use the C++ standard library when linking. Startup files and other
+standard and system libraries are still included. Options specifying linkage
+of the C++ standard libraries, such as @option{-static-libstdc++} are ignored.
+
 @item -pie
 @opindex pie
 Produce a position independent executable on targets that support it.
Index: gcc/gcc.c
===================================================================
--- gcc/gcc.c	(revision 245184)
+++ gcc/gcc.c	(working copy)
@@ -1,3 +1,4 @@
+
 /* Compiler driver program that can handle many languages.
    Copyright (C) 1987-2017 Free Software Foundation, Inc.
 
@@ -4117,9 +4118,10 @@
     case OPT_shared_libgcc:
     case OPT_static_libgfortran:
     case OPT_static_libstdc__:
+    case OPT_nostdlibc__:
       /* These are always valid, since gcc.c itself understands the
 	 first two, gfortranspec.c understands -static-libgfortran and
-	 g++spec.c understands -static-libstdc++ */
+	 g++spec.c understands -static-libstdc++ and -nostdlibc++ */
       validated = true;
       break;