GitHub pull request #2751 of commit f4ea2774cd111017011f52c6eba6a14e2ff04f12, no merge conflicts.sha1origin/pr/2751/mergeghprbActualCommitf4ea2774cd111017011f52c6eba6a14e2ff04f12ghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/dalehamel/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2751ghprbTargetBranchmasterghprbSourceBranchadd-cmake-clang-dirGIT_BRANCHadd-cmake-clang-dirghprbPullAuthorEmailghprbPullAuthorLogindalehamelghprbPullAuthorLoginMention@dalehamelghprbPullDescriptionGitHub pull request #2751 of commit f4ea2774cd111017011f52c6eba6a14e2ff04f12, no merge conflicts.ghprbPullTitleAllow specifying clang base directoryghprbPullLinkhttps://github.com/iovisor/bcc/pull/2751ghprbPullLongDescriptionThe LLVM package provides a Cmake flag \"LLVM_DIR\", but there is no analogue for specifying the search for clang libraries or headers in this same way.\r\n\r\nThis PR introduces this, so that the following usage is valid:\r\n\r\n```\r\ncmake -DLLVM_DIR=${SOME_PATH_TO_LLVM}/lib/cmake/llvm\r\ncmake -DCLANG_DIR=${SOME_PATH_TO_CLANG}\r\n```\r\n\r\nNote that LLVM_DIR points to the Cmake files for LLVM, and CLANG_DIR, points to a root director of a clang install, which has both \"/lib\" and \"/include\" in it, there is no need to load any CMake files for this and clang doesn't seem to export a cmake file for this / nor is it needed with the processing of clang libs below.\r\n\r\nI happen to need this in order to override the LLVM and Clang paths to point to embedded ones, when building bpftrace for android https://github.com/iovisor/bpftrace/pull/1095 in this patch set https://gist.github.com/dalehamel/da2f73357cd8cc4e60a1218e562a472b\r\nghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="Allow specifying clang base directory" href="https://github.com/iovisor/bcc/pull/2751">PR #2751</a>: Allow specifying clang base...#31514833727460664bcc-pr #315315false3152535SUCCESS1581519352644https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/315/git315https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc25/315/315https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc26/315/315https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc27/315/315https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=fc28/315/315https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=ubuntu1604/315/315https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=ubuntu1710/315/315https://buildbot.iovisor.org/jenkins/user/yhs/my-views/view/all/job/bcc-pr/label=ubuntu1804/315/