From 62340ef2afcfa3997cfc089c8aed6ce891b2a3ad Mon Sep 17 00:00:00 2001
From: mrg <mrg@NetBSD.org>
Date: Sun, 10 Aug 2003 01:57:50 +0000
Subject: [PATCH] document -isystem-cxx.

---
 gnu/dist/gcc/gcc/doc/cpp.texi     |  3 +++
 gnu/dist/gcc/gcc/doc/cppopts.texi | 10 ++++++++++
 gnu/dist/gcc/gcc/doc/invoke.texi  |  1 +
 3 files changed, 14 insertions(+)

diff --git a/gnu/dist/gcc/gcc/doc/cpp.texi b/gnu/dist/gcc/gcc/doc/cpp.texi
index 070e31c89ab1..b25c3055e660 100644
--- a/gnu/dist/gcc/gcc/doc/cpp.texi
+++ b/gnu/dist/gcc/gcc/doc/cpp.texi
@@ -1079,6 +1079,9 @@ command line.  If the same directory is named by both @option{-I} and
 @option{-isystem}, the @option{-I} option is ignored.  GCC provides an
 informative message when this occurs if @option{-v} is used.
 
+The @option{-isystem-cxx} command line option adds its argument to the
+list of C++ system headers, similar to @option{-isystem} for C headers.
+
 @findex #pragma GCC system_header
 There is also a directive, @code{@w{#pragma GCC system_header}}, which
 tells GCC to consider the rest of the current include file a system
diff --git a/gnu/dist/gcc/gcc/doc/cppopts.texi b/gnu/dist/gcc/gcc/doc/cppopts.texi
index 1cc688a4730f..d9efd2ca3bd7 100644
--- a/gnu/dist/gcc/gcc/doc/cppopts.texi
+++ b/gnu/dist/gcc/gcc/doc/cppopts.texi
@@ -448,6 +448,16 @@ is applied to the standard system directories.
 @xref{System Headers}.
 @end ifset
 
+@item -isystem-cxx @var{dir}
+@opindex isystemcxx
+Search @var{dir} for C++ header files, after all directories specified by
+@option{-I} but before the standard system directories.  Mark it
+as a system directory, so that it gets the same special treatment as
+is applied to the standard system directories.
+@ifset cppmanual
+@xref{System Headers}.
+@end ifset
+
 @item -fpreprocessed
 @opindex fpreprocessed
 Indicate to the preprocessor that the input file has already been
diff --git a/gnu/dist/gcc/gcc/doc/invoke.texi b/gnu/dist/gcc/gcc/doc/invoke.texi
index a99440f874b1..a69af028e919 100644
--- a/gnu/dist/gcc/gcc/doc/invoke.texi
+++ b/gnu/dist/gcc/gcc/doc/invoke.texi
@@ -294,6 +294,7 @@ in the following sections.
 -include @var{file}  -imacros @var{file} @gol
 -iprefix @var{file}  -iwithprefix @var{dir} @gol
 -iwithprefixbefore @var{dir}  -isystem @var{dir} @gol
+-isystem-cxx @var{dir} @gol
 -M  -MM  -MF  -MG  -MP  -MQ  -MT  -nostdinc  -P  -remap @gol
 -trigraphs  -undef  -U@var{macro}  -Wp,@var{option}}