Path: csiph.com!weretis.net!feeder6.news.weretis.net!feeder5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: Philipp Klaus Krause Newsgroups: comp.programming Subject: Re: make: Multiple targets created by single rule vs parallel make Date: Wed, 29 Jan 2020 13:43:14 +0100 Organization: solani.org Lines: 18 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: solani.org 1580301794 11842 127.0.0.43 (29 Jan 2020 12:43:14 GMT) X-Complaints-To: abuse@news.solani.org NNTP-Posting-Date: Wed, 29 Jan 2020 12:43:14 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 In-Reply-To: X-User-ID: eJwFwYEBwDAEBMCV5HliHKT2H6F3VD8+YU43LtdSSru/49pz35uCJDy3qyRaIBGI3RwSc/EDJWQRJQ== Cancel-Lock: sha1:bTYraft8DBHrTKPU+9WhehcIk6I= Autocrypt: addr=pkk@spth.de; keydata= mQGiBD+wIQ0RBAD5IkcgQQIAPO93xBBvviI0htuoaeb++GqG51BImx+rnWIS+1z+r3y5jQU5 IRYS8eDC3eR5PFtde/f7/3zxaJIB0bgXB1eMPot5CaN7mpUySVNh9bzH/UP7rVH0Ut7Bx/CI 7EXxhvYE23F/TAf+gS4flFqQ/GdK+MME+dg8J5nFbwCg92xq6iuAvyz7vSho9qbKHsCD3AkE AMbuLLBvk4mPvs19aRGZvT/pows1uzkeNq8fpmzvryb4UxUbU89qlNzA2Bg8ztVZGX9x5drb C4tFE29ZFAHn2bojx2ADxG85+2as8yfcz6sPG4HMzeTtugzPGCeRAXaSknZHsw6AC6LrtsEU sjEZMElfvu8uU4dthfhXOIDVNRHmA/446GsHRLosDHFuDjHpBQJPJSBnFDyRSCge2Q0gup96 GGhNc7KkYeIB8Dh7dCN3h5RYXflVTspxmgANUa+RFpL4pynsF16rtkfeh0UR8uLdoaGwMChw GyWIdRhX8MLQ8v3WHPCUrB/1f5xhRypQgF0/c8y4w5BarGQXy7AM0PljBbQxUGhpbGlwcCBL cmF1c2UgKFN0YW5kYXJkc2NobMO8c3NlbCkgPHBra0BzcHRoLmRlPohbBBMRAgAbBQI/sCEN BgsJCAcDAgMVAgMDFgIBAh4BAheAAAoJEG7VFfsbKC6a31wAni0szX2x9jjNqqch2fE5zOkd IJsSAKCuZaayyxtHPb6rpQtbDMUTS7rXe7kCDQQ/sCFjEAgAknletShOrS5UeFH6V09TksPL 5w8S1SaQThvdberD74Uaq5Weoeu5fCzeDlhRvTC+wQFxL5W2wdM3ZhqRpZIri7X3ab/WUsqv 0FCK8LB9HfioafjNg7uQbyUannvyBkj4WAfHrTDgDbNw8EJMehab9MUeCUZEkhXrk9b3rp3r /uoic1pymK0aZX+wUfayXGANAAk75HAruEWxpGObjcJ587tTOsfDAFnJlXKXLVXuqJDSraym ankbEfyX1CmfhetYn+s1fCpAHX/GOIQPEG2BCdeLdy8ApN0l6MIrRkJKbBnvnc8HsUI7Elfu huemyI/Nvhxk5+tuOS5kZBIyZKe8CwADBQf+InHwn00dafe8XNod9jRsHgCqE259ocEiL0Zs rw3NfwbckR6YVGtoovHna6I3+o4F4GPS/869WFw/w1HGGsa9t6SRjWeoH221bxYc+aTstGbA hd9OuDXnXFi9Mokh34cXQexvrVYjfOdbAl9TRezPBRygzr6XvUdUtIpZjZhW0WSdhdF67Obl F+S9kCX7v3Q0kSqnjzk05Qs5kHyaE+7BKiGQhvCz51J++CTCc/g16eOVVabHNLalAEInq1jn jAB15+JxDcA3HFup7+sHkkscAEQPPi8aNnWR32su0w9hfE1qQkvyHhOiPX2GVhm/Lt0C1vGr ZCB9Bve3r8M+Z7uMaohGBBgRAgAGBQI/sCFjAAoJEG7VFfsbKC6aQ4oAnibaEjyIlrRMTmyL K76lqhloK0EPAKCQsgCELscmeJnxyjV1zZt6AJ6ctQ== Openpgp: preference=signencrypt Content-Language: en-US Xref: csiph.com comp.programming:10567 Am 23.01.20 um 15:00 schrieb Philipp Klaus Krause: > In a Makefile, I have one rule that creates multiple targets, using the > &: feature of GNU make. > > However, if I use make -j, the rule is still executed as many times as > there are targets. How can I avoid that without affecting other rules? > > Philipp > As can be seen in https://savannah.gnu.org/bugs/?57692 the mistake was on my side, assuming that grouped targets were supported by GNU mmake 4.2.1. The syntax for grouped targets actually is also valid make syntax for older versions of make, but has different semantics there.