{"action":"created","issue":{"url":"https://api.github.com/repos/arduino/Arduino/issues/5564","repository_url":"https://api.github.com/repos/arduino/Arduino","labels_url":"https://api.github.com/repos/arduino/Arduino/issues/5564/labels{/name}","comments_url":"https://api.github.com/repos/arduino/Arduino/issues/5564/comments","events_url":"https://api.github.com/repos/arduino/Arduino/issues/5564/events","html_url":"https://github.com/arduino/Arduino/issues/5564","id":187500234,"number":5564,"title":"\"undefined reference\" occurs at building SchedulerARMAVR on IDE1.6.10 or more","user":{"login":"asukiaaa","id":5975178,"avatar_url":"https://avatars.githubusercontent.com/u/5975178?v=3","gravatar_id":"","url":"https://api.github.com/users/asukiaaa","html_url":"https://github.com/asukiaaa","followers_url":"https://api.github.com/users/asukiaaa/followers","following_url":"https://api.github.com/users/asukiaaa/following{/other_user}","gists_url":"https://api.github.com/users/asukiaaa/gists{/gist_id}","starred_url":"https://api.github.com/users/asukiaaa/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/asukiaaa/subscriptions","organizations_url":"https://api.github.com/users/asukiaaa/orgs","repos_url":"https://api.github.com/users/asukiaaa/repos","events_url":"https://api.github.com/users/asukiaaa/events{/privacy}","received_events_url":"https://api.github.com/users/asukiaaa/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2016-11-05T14:31:07Z","updated_at":"2016-11-05T22:07:00Z","closed_at":null,"body":"I sometime use a library `SchedulerARMAVR` to create a multi tasking project.\r\n\r\nhttps://github.com/fabriceo/SCoop/tree/master/SchedulerARMAVR\r\n\r\nIt succeeded building with using 1.6.8 and 1.6.9 but failed with using 1.6.10, 1.6.11 and 1.6.12.\r\n\r\nIDE outputs the following error.\r\n\r\n```\r\nArduino: 1.6.12 (Linux), Board: \"Arduino Nano, ATmega328\"\r\n\r\n/tmp/ccfwLs4I.ltrans0.ltrans.o: In function `coopTaskStart':\r\nccfwLs4I.ltrans0.o:(.text+0x8): undefined reference to `coopSchedule'\r\n/tmp/ccfwLs4I.ltrans0.ltrans.o: In function `coopDoYield':\r\nccfwLs4I.ltrans0.o:(.text+0x30e): undefined reference to `coopSchedule'\r\ncollect2: error: ld returned 1 exit status\r\nexit status 1\r\nError compiling for board Arduino Nano.\r\n\r\nThis report would have more information with\r\n\"Show verbose output during compilation\"\r\noption enabled in File -> Preferences.\r\n```\r\n\r\nThe error occurs even though I remove `.arduino15`.\r\n\r\nI use Ubuntu16.04 64bit.\r\nIs there any way to avoid this error?\r\n\r\nThanks."},"comment":{"url":"https://api.github.com/repos/arduino/Arduino/issues/comments/258645364","html_url":"https://github.com/arduino/Arduino/issues/5564#issuecomment-258645364","issue_url":"https://api.github.com/repos/arduino/Arduino/issues/5564","id":258645364,"user":{"login":"per1234","id":8572152,"avatar_url":"https://avatars.githubusercontent.com/u/8572152?v=3","gravatar_id":"","url":"https://api.github.com/users/per1234","html_url":"https://github.com/per1234","followers_url":"https://api.github.com/users/per1234/followers","following_url":"https://api.github.com/users/per1234/following{/other_user}","gists_url":"https://api.github.com/users/per1234/gists{/gist_id}","starred_url":"https://api.github.com/users/per1234/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/per1234/subscriptions","organizations_url":"https://api.github.com/users/per1234/orgs","repos_url":"https://api.github.com/users/per1234/repos","events_url":"https://api.github.com/users/per1234/events{/privacy}","received_events_url":"https://api.github.com/users/per1234/received_events","type":"User","site_admin":false},"created_at":"2016-11-05T22:06:59Z","updated_at":"2016-11-05T22:06:59Z","body":"I was able to fix the issue by making the following change:\r\nhttps://github.com/fabriceo/SCoop/pull/3"}}
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