Hi, Attached is a patch to add the correct option for building OpenMP code using Clang. Per the llvm release notes <http://llvm.org/releases/3.7.0/tools/clang/docs/ReleaseNotes.html> it is necessary to give -fopenmp=libomp to build properly, not just -fopenmp. Tested on 64-bit Linux using clang 3.7.0.
Chris
>From f80164de4b51afc7cdcc053346c696ea2baaa4a4 Mon Sep 17 00:00:00 2001 From: Chris Pavlina <pavlina.ch...@gmail.com> Date: Thu, 10 Dec 2015 10:40:27 -0500 Subject: [PATCH] Add Clang support to FindOpenMP --- Modules/FindOpenMP.cmake | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Modules/FindOpenMP.cmake b/Modules/FindOpenMP.cmake index a102c66..ee4bdd6 100644 --- a/Modules/FindOpenMP.cmake +++ b/Modules/FindOpenMP.cmake @@ -50,6 +50,8 @@ function(_OPENMP_FLAG_CANDIDATES LANG) " " #GNU "-fopenmp" + #Clang + "-fopenmp=libomp" #Microsoft Visual Studio "/openmp" #Intel windows @@ -67,6 +69,7 @@ function(_OPENMP_FLAG_CANDIDATES LANG) ) set(OMP_FLAG_GNU "-fopenmp") + set(OMP_FLAG_Clang "-fopenmp=libomp") set(OMP_FLAG_HP "+Oopenmp") if(WIN32) set(OMP_FLAG_Intel "-Qopenmp") -- 2.6.4
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