cmake: fix compatibility issue with Linux

CMakeLists.txt

@@ -32,7 +32,9 @@ INCLUDE(${CMAKE_CURRENT_LIST_DIR}/cmake/boost.cmake)
 INCLUDE(${CMAKE_CURRENT_LIST_DIR}/cmake/python.cmake)
 INCLUDE(${CMAKE_CURRENT_LIST_DIR}/cmake/ide.cmake)
 INCLUDE(${CMAKE_CURRENT_LIST_DIR}/cmake/apple.cmake)
-SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/cmake/find-external/OpenMP ${CMAKE_MODULE_PATH})
+IF(APPLE) # Use the handmade approach
+  SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/cmake/find-external/OpenMP ${CMAKE_MODULE_PATH})
+ENDIF(APPLE)
 INCLUDE(CMakeDependentOption)
 
 # If needed, set CMake policy for APPLE systems

benchmark/CMakeLists.txt

@@ -53,7 +53,7 @@ ENDIF(CPPADCG_FOUND)
 
 IF(BUILD_WITH_OPENMP_SUPPORT)
   ADD_BENCH(timings-parallel TRUE)
-  TARGET_LINK_LIBRARIES(timings-parallel PRIVATE OpenMP::OpenMP)
+  TARGET_LINK_LIBRARIES(timings-parallel PRIVATE OpenMP::OpenMP_CXX)
 ENDIF(BUILD_WITH_OPENMP_SUPPORT)
 
 # timings

bindings/python/CMakeLists.txt

@@ -128,11 +128,11 @@ IF(BUILD_PYTHON_INTERFACE)
   SET(PKG_CONFIG_PYWRAP_REQUIRES "eigenpy >= 2.6.2")
   ADD_LIBRARY(${PYWRAP} SHARED ${${PYWRAP}_SOURCES} ${${PYWRAP}_HEADERS})
   IF(BUILD_WITH_OPENMP_SUPPORT)
-    TARGET_COMPILE_OPTIONS(${PYWRAP} PRIVATE ${OpenMP_COMPILE_OPTIONS})
+    TARGET_COMPILE_OPTIONS(${PYWRAP} PRIVATE ${OpenMP_CXX_COMPILE_OPTIONS})
     TARGET_COMPILE_DEFINITIONS(${PYWRAP} PRIVATE -DPINOCCHIO_PYTHON_INTERFACE_WITH_OPENMP)
-    TARGET_INCLUDE_DIRECTORIES(${PYWRAP} SYSTEM PRIVATE ${OpenMP_INCLUDE_DIR})
+    TARGET_INCLUDE_DIRECTORIES(${PYWRAP} SYSTEM PRIVATE ${OpenMP_CXX_INCLUDE_DIR})
     IF(LINK_PYTHON_INTERFACE_TO_OPENM)
-      TARGET_LINK_LIBRARIES(${PYWRAP} PRIVATE ${OpenMP_LIBRARIES})
+      TARGET_LINK_LIBRARIES(${PYWRAP} PRIVATE ${OpenMP_CXX_LIBRARIES})
     ENDIF(LINK_PYTHON_INTERFACE_TO_OPENM)
   ENDIF(BUILD_WITH_OPENMP_SUPPORT)
   ADD_DEPENDENCIES(python ${PYWRAP})

unittest/CMakeLists.txt

@@ -49,7 +49,7 @@ MACRO(ADD_PINOCCHIO_PARALLEL_UNIT_TEST NAME)
   IF(BUILD_WITH_OPENMP_SUPPORT)
     ADD_PINOCCHIO_UNIT_TEST(${ARGV})
     SET(TEST_NAME "test-cpp-${NAME}")
-    TARGET_LINK_LIBRARIES(${TEST_NAME} PRIVATE OpenMP::OpenMP)
+    TARGET_LINK_LIBRARIES(${TEST_NAME} PRIVATE OpenMP::OpenMP_CXX)
   ENDIF()
 ENDMACRO()