$OpenBSD: patch-tests_CMakeLists_txt,v 1.1 2017/08/11 10:26:05 dcoppa Exp $

Index: tests/CMakeLists.txt
--- tests/CMakeLists.txt.orig
+++ tests/CMakeLists.txt
@@ -7,7 +7,9 @@ TARGET_LINK_LIBRARIES(test_modifier lensfun ${COMMON_L
 ADD_TEST(Modifier test_modifier)
 
 find_package(OpenMP)
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
+if(OpenMP_CXX_FOUND)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
+endif()
 
 ADD_EXECUTABLE(test_modifier_color test_modifier_color.cpp)
 TARGET_LINK_LIBRARIES(test_modifier_color lensfun ${COMMON_LIBS})
