GitHub pull request #3497 of commit 105a5b295c44428670387e0c400bde39083b510f, no merge conflicts.sha1origin/pr/3497/mergeghprbActualCommit105a5b295c44428670387e0c400bde39083b510fghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/davemarchevsky/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId3497ghprbTargetBranchmasterghprbSourceBranchdavemarchevsky_gnu_source_redefineGIT_BRANCHdavemarchevsky_gnu_source_redefineghprbPullAuthorEmaildavemarchevsky@gmail.comghprbPullAuthorLogindavemarchevskyghprbPullAuthorLoginMention@davemarchevskyghprbPullDescriptionGitHub pull request #3497 of commit 105a5b295c44428670387e0c400bde39083b510f, no merge conflicts.ghprbPullTitlelibbpf-tools: Don't redefine _GNU_SOURCE to avoid redefinition warningghprbPullLinkhttps://github.com/iovisor/bcc/pull/3497ghprbPullLongDescriptionSimilar to past commits like 667988ce9e2a051ff608b727f6c89a5baa01fa67,\r\nmy toolchain complains that `_GNU_SOURCE` is redefined. Let's only\r\ndefine it when it passes `ifndef`ghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="libbpf-tools: Don't redefine _GNU_SOURCE to avoid redefinition warning" href="https://github.com/iovisor/bcc/pull/3497">PR #3497</a>: libbpf-tools: Don't redefin...#104112994707460664bcc-pr #10411041false10418337SUCCESS1624119987314https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/1041/git1041https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/label=fc25/1041/1041https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/label=fc26/1041/1041https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/label=fc27/1041/1041https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/label=fc28/1041/1041https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/label=ubuntu1604/1041/1041https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/label=ubuntu1710/1041/1041https://buildbot.iovisor.org/jenkins/user/jmarchan/my-views/view/all/job/bcc-pr/label=ubuntu1804/1041/