From 4e42ee2cfc46d5f319ab6543cccfe3cbc35a41f5 Mon Sep 17 00:00:00 2001
From: Christoph Junghans <junghans@votca.org>
Date: Wed, 9 May 2018 23:09:23 -0600
Subject: [PATCH] cmake: add BUILD_OMP option
---
cmake/CMakeLists.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 5907a3f684..1699058f60 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -155,7 +155,9 @@ if(ENABLE_KOKKOS OR ENABLE_MSCG)
set(CMAKE_CXX_EXTENSIONS OFF) #...without compiler extensions like gnu++11
endif()
-if(ENABLE_USER-OMP OR ENABLE_KOKKOS OR ENABLE_USER-INTEL)
+find_package(OpenMP QUIET)
+option(BUILD_OMP "Build with OpenMP support" ${OpenMP_FOUND})
+if(BUILD_OMP OR ENABLE_USER-OMP OR ENABLE_KOKKOS OR ENABLE_USER-INTEL)
find_package(OpenMP REQUIRED)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
--
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