From unknown Sat Jun 14 14:28:36 2025 X-Loop: help-debbugs@gnu.org Subject: bug#63826: Posix Spawn on MinGW Resent-From: Mike Gran Original-Sender: "Debbugs-submit" Resent-CC: bug-guile@gnu.org Resent-Date: Thu, 01 Jun 2023 14:28:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 63826 X-GNU-PR-Package: guile X-GNU-PR-Keywords: To: 63826@debbugs.gnu.org X-Debbugs-Original-To: bug-guile@gnu.org Received: via spool by submit@debbugs.gnu.org id=B.168562965624603 (code B ref -1); Thu, 01 Jun 2023 14:28:01 +0000 Received: (at submit) by debbugs.gnu.org; 1 Jun 2023 14:27:36 +0000 Received: from localhost ([127.0.0.1]:38309 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1q4jH6-0006Ol-KM for submit@debbugs.gnu.org; Thu, 01 Jun 2023 10:27:36 -0400 Received: from lists.gnu.org ([209.51.188.17]:38596) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1q4jH5-0006Oc-5K for submit@debbugs.gnu.org; Thu, 01 Jun 2023 10:27:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q4jH4-0003tF-VX for bug-guile@gnu.org; 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Hermes SMTP Server) with ESMTPA ID b395ddd06b49acc0274968c5498d9847; Thu, 01 Jun 2023 14:27:28 +0000 (UTC) Date: Thu, 1 Jun 2023 07:27:26 -0700 From: Mike Gran Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline References: X-Mailer: WebService/1.1.21495 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 936 Received-SPF: pass client-ip=74.6.130.40; envelope-from=spk121@yahoo.com; helo=sonic308-1.consmr.mail.bf2.yahoo.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -0.4 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.4 (-) The recent addition of the posix_spawn gnulib module raises the possibility of getting this functionality to work on MinGW, since the gnulib module provides portability to MinGW and friends. The first step is to remove the HAVE_FORK ifdefs where unnecessary in posix.c, since piped_process() does not use fork. This will allow the functions to be exported. Guile's homegrown waitpid in posix-w32.c is apparently not compatible with gnulib's posix_spawn since they use different stores for PIDs and process handles. The gnulib waitpid will need to be imported and Guile's custom waitpid removed. Also, various hardcodings of "/bin/sh" and "/dev/null" will need workarounds. If it could be made to work, it would still not function identically to how it functions on GNU/Linux because of the different shell, but we already accepted such divergence previously when 'system*' used the start_child from Guile's posix-w32.c -Mike Gran