#12751: Sage fails to build with GCC-4.7.0
--------------------------------------------------------------+-------------
Reporter: mariah | Owner:
GeorgSWeber
Type: defect | Status:
new
Priority: blocker | Milestone:
sage-5.0
Component: build | Resolution:
Keywords: GCC 4.7.0 C++11 -fpermissive compiler bugs | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by leif):
Replying to [comment:22 leif]:
> Replying to [comment:21 leif]:
> > I get a build error for the (old) eclib spkg on '''Solaris''' [SPARC,
32-bit]:
> > {{{
> > ...
> > arith.h:182:39: error: 'int div(long int, long int)' conflicts with
previous using declaration 'std::ldiv_t std::div(long int, long int)'
> > ...
> > }}}
> [...] I have no idea why this only fails on Solaris, as AFAIK
>
> {{{
> #!C++
> std::ldiv_t std::div(long int, long int)
> }}}
>
> is pretty C++98. Maybe on Solaris just some `using namespace std;` gets
pulled in, which isn't present on other systems.
Apparently Solaris' `/usr/include/stdlib.h` is the culprit:
{{{
#!c++
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
/* The copyright notice above does not evidence any */
/* actual or intended publication of such source code. */
#ifndef _STDLIB_H
#define _STDLIB_H
#pragma ident "@(#)stdlib.h 1.51 04/06/30 SMI" /* SVr4.0 1.22 */
#include <iso/stdlib_iso.h>
#include <iso/stdlib_c99.h>
#if defined(__EXTENSIONS__) || defined(_XPG4)
#include <sys/wait.h>
#endif
/*
* Allow global visibility for symbols defined in
* C++ "std" namespace in <iso/stdlib_iso.h>.
*/
#if __cplusplus >= 199711L
...
using std::div;
...
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12751#comment:23>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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