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Re: POSIX in g++

From: Ian Lance Taylor <iant at google dot com>
To: "Peng Yu" <pengyu dot ut at gmail dot com>
Cc: gcc at gcc dot gnu dot org
Date: Tue, 15 Jul 2008 15:57:04 -0700
Subject: Re: POSIX in g++
References: <366c6f340807151456p121ac5aduea871f51c68bffbd@mail.gmail.com>

"Peng Yu" <pengyu.ut@gmail.com> writes:

> There is an options -ansi to make g++ ANSI compatible. I'm wondering
> if there is an option to make g++ POSIX compatible. Or g++ is already
> POSIX compatible without an option?

POSIX itself specifies features macros which you may define to compile
your source code in a strict POSIX environment.  These are
_POSIX_SOURCE and _POSIX_C_SOURCE.  These affect the header files
rather than the libraries.  To get a strict POSIX compiler, use those
in conjunction with -ansi or -std.

Ian

Follow-Ups:
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References:
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