Re: c++/7327: -isystem and template linkage

["Berthold Höllmann" <hoel@germanlloyd.org>]

The following reply was made to PR c++/7327; it has been noted by GNATS.

From: =?ISO-8859-15?Q?Berthold_H=F6llmann?= <hoel@germanlloyd.org>
To: <neil@gcc.gnu.org>
Cc: <gcc-bugs@gcc.gnu.org>,
	<gcc-prs@gcc.gnu.org>,
	<nobody@gcc.gnu.org>,
	<gcc-gnats@gcc.gnu.org>
Subject: Re: c++/7327: -isystem and template linkage
Date: 13 Aug 2002 13:52:50 +0200

 neil@gcc.gnu.org writes:
 
 > Old Synopsis: strange error through using -isystem
 > New Synopsis: -isystem and template linkage
 >=20
 > State-Changed-From-To: open->analyzed
 > State-Changed-By: neil
 > State-Changed-When: Tue Aug 13 04:12:48 2002
 > State-Changed-Why:
 >     One way gives your headers extern "C" wrappers, the other
 >     doesn't.  I'm not sure what the fix is, or even if it should be
 fixed.
 >=20
 >
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=3Dview%20audit-trail&database=3D=
 g
 cc&pr=3D7327
 >=20
 
 If I generate the preprocessed files using
 
    g++ -E -isystem /home/hoel/work/boost/boost err.cxx -o erra
 
 and
 
    g++ -E -I /home/hoel/work/boost/boost err.cxx -o errb
 
 and call=20
 
    diff err? | grep -v "^[<>] #" | grep -v "\---"
 
 afterwards, the only output are the different lines. So why are the
 C++ lines wrapped extern "C" using -isystem but not using -I? I'm also
 not sure what the fix is, but shure it should be fixed.
 
 Greetings
 
 Berthold
 --=20
 Dipl.-Ing. Berthold H=F6llmann   __   Address:
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