{"action":"created","issue":{"url":"https://api.github.com/repos/ethereum/cpp-ethereum/issues/3316","repository_url":"https://api.github.com/repos/ethereum/cpp-ethereum","labels_url":"https://api.github.com/repos/ethereum/cpp-ethereum/issues/3316/labels{/name}","comments_url":"https://api.github.com/repos/ethereum/cpp-ethereum/issues/3316/comments","events_url":"https://api.github.com/repos/ethereum/cpp-ethereum/issues/3316/events","html_url":"https://github.com/ethereum/cpp-ethereum/issues/3316","id":179237821,"number":3316,"title":"../libethash/libethash.so: error: undefined reference to 'ceil'","user":{"login":"5chdn","id":15729797,"avatar_url":"https://avatars.githubusercontent.com/u/15729797?v=3","gravatar_id":"","url":"https://api.github.com/users/5chdn","html_url":"https://github.com/5chdn","followers_url":"https://api.github.com/users/5chdn/followers","following_url":"https://api.github.com/users/5chdn/following{/other_user}","gists_url":"https://api.github.com/users/5chdn/gists{/gist_id}","starred_url":"https://api.github.com/users/5chdn/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/5chdn/subscriptions","organizations_url":"https://api.github.com/users/5chdn/orgs","repos_url":"https://api.github.com/users/5chdn/repos","events_url":"https://api.github.com/users/5chdn/events{/privacy}","received_events_url":"https://api.github.com/users/5chdn/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ethereum/cpp-ethereum/labels/bug","name":"bug","color":"fc2929"},{"url":"https://api.github.com/repos/ethereum/cpp-ethereum/labels/build-system","name":"build-system","color":"1d76db"}],"state":"open","locked":false,"assignee":{"login":"bobsummerwill","id":3788156,"avatar_url":"https://avatars.githubusercontent.com/u/3788156?v=3","gravatar_id":"","url":"https://api.github.com/users/bobsummerwill","html_url":"https://github.com/bobsummerwill","followers_url":"https://api.github.com/users/bobsummerwill/followers","following_url":"https://api.github.com/users/bobsummerwill/following{/other_user}","gists_url":"https://api.github.com/users/bobsummerwill/gists{/gist_id}","starred_url":"https://api.github.com/users/bobsummerwill/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bobsummerwill/subscriptions","organizations_url":"https://api.github.com/users/bobsummerwill/orgs","repos_url":"https://api.github.com/users/bobsummerwill/repos","events_url":"https://api.github.com/users/bobsummerwill/events{/privacy}","received_events_url":"https://api.github.com/users/bobsummerwill/received_events","type":"User","site_admin":false},"assignees":[{"login":"bobsummerwill","id":3788156,"avatar_url":"https://avatars.githubusercontent.com/u/3788156?v=3","gravatar_id":"","url":"https://api.github.com/users/bobsummerwill","html_url":"https://github.com/bobsummerwill","followers_url":"https://api.github.com/users/bobsummerwill/followers","following_url":"https://api.github.com/users/bobsummerwill/following{/other_user}","gists_url":"https://api.github.com/users/bobsummerwill/gists{/gist_id}","starred_url":"https://api.github.com/users/bobsummerwill/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bobsummerwill/subscriptions","organizations_url":"https://api.github.com/users/bobsummerwill/orgs","repos_url":"https://api.github.com/users/bobsummerwill/repos","events_url":"https://api.github.com/users/bobsummerwill/events{/privacy}","received_events_url":"https://api.github.com/users/bobsummerwill/received_events","type":"User","site_admin":false}],"milestone":null,"comments":5,"created_at":"2016-09-26T14:04:47Z","updated_at":"2016-09-29T20:33:21Z","closed_at":null,"body":"Latest build from develop branch fails with:\r\n\r\n    [ 61%] Linking CXX executable ethvm\r\n    ../libethash/libethash.so: error: undefined reference to 'ceil'\r\n    collect2: error: ld returned 1 exit status\r\n    make[2]: *** [ethvm/CMakeFiles/ethvm.dir/build.make:118: ethvm/ethvm] Error 1\r\n    make[1]: *** [CMakeFiles/Makefile2:1586: ethvm/CMakeFiles/ethvm.dir/all] Error 2\r\n    make[1]: *** Waiting for unfinished jobs....\r\n    [ 61%] Building CXX object test/libtestutils/CMakeFiles/testutils.dir/Common.cpp.o\r\n    [ 62%] Linking CXX executable ethminer\r\n    ../libethash/libethash.so: error: undefined reference to 'ceil'\r\n    ../libethashseal/libethashseal.so: error: undefined reference to 'pthread_create'\r\n    collect2: error: ld returned 1 exit status\r\n    make[2]: *** [ethminer/CMakeFiles/ethminer.dir/build.make:122: ethminer/ethminer] Error 1\r\n    make[1]: *** [CMakeFiles/Makefile2:1488: ethminer/CMakeFiles/ethminer.dir/all] Error 2\r\n    [ 62%] Building CXX object test/libtestutils/CMakeFiles/testutils.dir/StateLoader.cpp.o\r\n    [ 62%] Building CXX object libwebthree/CMakeFiles/webthree.dir/Support.cpp.o\r\n    [ 63%] Building CXX object libwebthree/CMakeFiles/webthree.dir/Swarm.cpp.o\r\n    [ 64%] Linking CXX shared library libtestutils.so\r\n    [ 64%] Built target testutils\r\n    [ 64%] Building CXX object libwebthree/CMakeFiles/webthree.dir/libexecstream/exec-stream.cpp.o\r\n    [ 65%] Linking CXX shared library libwebthree.so\r\n    [ 65%] Built target webthree\r\n    make: *** [Makefile:128: all] Error 2\r\n\r\nGCC 6, Archlinux:\r\n\r\n     $ gcc --version\r\n    gcc (GCC) 6.2.1 20160830\r\n    Copyright (C) 2016 Free Software Foundation, Inc.\r\n    This is free software; see the source for copying conditions.  There is NO\r\n    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\r\n\r\n     $ uname -a\r\n    Linux 4.7.4-1-ARCH #1 SMP PREEMPT Thu Sep 15 15:24:29 CEST 2016 x86_64 GNU/Linux\r\n"},"comment":{"url":"https://api.github.com/repos/ethereum/cpp-ethereum/issues/comments/250582960","html_url":"https://github.com/ethereum/cpp-ethereum/issues/3316#issuecomment-250582960","issue_url":"https://api.github.com/repos/ethereum/cpp-ethereum/issues/3316","id":250582960,"user":{"login":"5chdn","id":15729797,"avatar_url":"https://avatars.githubusercontent.com/u/15729797?v=3","gravatar_id":"","url":"https://api.github.com/users/5chdn","html_url":"https://github.com/5chdn","followers_url":"https://api.github.com/users/5chdn/followers","following_url":"https://api.github.com/users/5chdn/following{/other_user}","gists_url":"https://api.github.com/users/5chdn/gists{/gist_id}","starred_url":"https://api.github.com/users/5chdn/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/5chdn/subscriptions","organizations_url":"https://api.github.com/users/5chdn/orgs","repos_url":"https://api.github.com/users/5chdn/repos","events_url":"https://api.github.com/users/5chdn/events{/privacy}","received_events_url":"https://api.github.com/users/5chdn/received_events","type":"User","site_admin":false},"created_at":"2016-09-29T20:33:21Z","updated_at":"2016-09-29T20:33:21Z","body":"> Please could you try adding -pthreads in here?\r\n\r\nNope, issue persists."}}
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