From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/10873 Path: news.gmane.org!.POSTED!not-for-mail From: Justin Cormack Newsgroups: gmane.linux.lib.musl.general Subject: Re: libstdc++ namespace pollution Date: Tue, 3 Jan 2017 22:52:19 +0000 Message-ID: References: <20170103182908.GH1555@brightrain.aerifal.cx> <20170103213552.GI1555@brightrain.aerifal.cx> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: blaine.gmane.org 1483483955 13695 195.159.176.226 (3 Jan 2017 22:52:35 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 3 Jan 2017 22:52:35 +0000 (UTC) To: musl@lists.openwall.com Original-X-From: musl-return-10886-gllmg-musl=m.gmane.org@lists.openwall.com Tue Jan 03 23:52:31 2017 Return-path: Envelope-to: gllmg-musl@m.gmane.org Original-Received: from mother.openwall.net ([195.42.179.200]) by blaine.gmane.org with smtp (Exim 4.84_2) (envelope-from ) id 1cOXwU-0002q5-Ih for gllmg-musl@m.gmane.org; Tue, 03 Jan 2017 23:52:30 +0100 Original-Received: (qmail 25892 invoked by uid 550); 3 Jan 2017 22:52:32 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Original-Received: (qmail 25871 invoked from network); 3 Jan 2017 22:52:32 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=specialbusservice.com; s=google; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=s3ATroe5FmjpLkDc5d0GS8efSbXznqZGN/wgxRWKvn8=; b=Nyijpy7zLOzne00QGuQETr/pBipjKBVQ0RZ/9A8Z852Em9BrIZqGqxdUvQjbN0RNCi hYjC6oJcJ7SNY7sCxC0q3kH3JkgWR8RrwGk4EW1ocB7OYqNoAfzQP+mo08ur2PIAcW0J gKNFokGj8L04ie/8AvhK1nfdCFpkxVbIOg34c= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=s3ATroe5FmjpLkDc5d0GS8efSbXznqZGN/wgxRWKvn8=; b=o97Bp9N3HFMen1VfkHny2E2xIPuXAWmaGz0UR5MPrh+izItUgwd6k3zh3oP+R7oQvn +98drGauXakLbKFVAe4V1kw3Ki0sB88eVk/ZkxtQSSJ9XpCZAPzM/O8c6cb8nhhA7J0j ovWj+jVoYh72WEK1urgF4U8DzeVbahZF4vTbD4jEueNjAeDP4odEffzLw0dI2cB2cAkN V7XjY4z/AKra0k7e9LTX9qNM/k0YLL203PiKrK34aBc9JxoQ1C7ovSg5xRW8WCfZNMsP w4y28FZBxHycxEoeOtzVnLHm0nzDyEW7EnYWWOFAAQFhT2RYbBCl8paOVaKQCptWUpM6 wZAQ== X-Gm-Message-State: AIkVDXLnWCNzWz100gapB3fR8cl1NvLhuDAytSSWjjebzS7oJ2FhMiOLztpuPJuh0OvTSQpNi+O6YlFDqAd2OQ== X-Received: by 10.176.71.86 with SMTP id i22mr32530840uac.31.1483483940413; Tue, 03 Jan 2017 14:52:20 -0800 (PST) In-Reply-To: <20170103213552.GI1555@brightrain.aerifal.cx> Xref: news.gmane.org gmane.linux.lib.musl.general:10873 Archived-At: On 3 January 2017 at 21:35, Rich Felker wrote: > On Tue, Jan 03, 2017 at 09:16:29PM +0000, Justin Cormack wrote: >> On 3 January 2017 at 18:29, Rich Felker wrote: >> > On Tue, Jan 03, 2017 at 05:44:47PM +0000, Justin Cormack wrote: >> >> I have been trying to build a C++ program recently, and came across >> >> the issue that >> >> >> >> 1. libstdc++ always defines _GNU_SOURCE see >> >> https://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.predefined >> >> 2. Musl defines pretty much everything once _GNU_SOURCE is defined >> > >> > So does glibc. :) >> >> This particular issue only happens with Musl, it includes more... > > That might be a bug/unwanted behavior on musl's side then. Could you > help me check? I'd be happy to remove namespace-polluting cruft that's > not actually needed to meet what applications can reasonably expect > from _GNU_SOURCE. > This minimal test case compiles with c++ on Debian but not on Alpine: #include class ArgumentParser_x64 { enum Register { REG_A, REG_B, REG_C, REG_D, REG_SI, REG_DI, REG_BP, REG_SP, REG_8, REG_9, REG_10, REG_11, REG_12, REG_13, REG_14, REG_15, REG_RIP, }; }; main() {}