From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.1 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 28164 invoked from network); 19 May 2020 14:29:17 -0000 Received: from mother.openwall.net (195.42.179.200) by inbox.vuxu.org with ESMTPUTF8; 19 May 2020 14:29:17 -0000 Received: (qmail 18094 invoked by uid 550); 19 May 2020 14:27:39 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: musl@lists.openwall.com Received: (qmail 11750 invoked from network); 19 May 2020 14:23:30 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=porcupine.org; s=dktest; t=1589898198; bh=gwp27lMIxz6tH3FhHUjdY1F0+wY7drjm49Mpx8OomEk=; h=Subject:In-Reply-To:To:Date:CC:MIME-Version: Content-Transfer-Encoding:Content-Type:Message-Id:From; b=pL6/6vEeRjcXsaCVFzoFFQhCzRsUJlpAStjMQsF/jywhhSNVXzNyO0XWmKU3mD3/p Zk+jve0O3SXQwwzBg/HBTYLNWzvGboh80tq2A/l+b+0J40r1SFXk4+fp61KfC9vfy1 TWm1AA+8og1RrttjkRA04XcPqCWngW7/M9c0CePc= In-Reply-To: <20200519140015.GO21576@brightrain.aerifal.cx> To: Rich Felker Date: Tue, 19 May 2020 10:23:18 -0400 (EDT) CC: postfix-users@postfix.org, musl@lists.openwall.com X-Mailer: ELM [version 2.4ME+ PL124d (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="US-ASCII" Message-Id: <49RJ5L2bxNzJrNv@spike.porcupine.org> From: Wietse Venema Subject: [musl] Re: Outgoing DANE not working Rich Felker: > The is fundamentally no build-time test possible for this. Even if we > were willing to make flags for each bug (or missing feature) that was > ever fixed indicating the change, that would only tell you whether the > version present at build time had the property, not whether the > version present at runtime does. With a distro, unless the distro If you can provide a libc-musl runtime __version variable, then Postfix can at run time determine that the library supports the necessary functionality, and enable/disable DANE accordingly. Wietse