Download gtest fixes

Author: SylvainCorlay

CMakeLists.txt

@@ -82,9 +82,16 @@ set(XTENSOR_PYTHON_CMAKECONFIG_INSTALL_DIR "share/cmake/${PROJECT_NAME}" CACHE S
 configure_package_config_file(${PROJECT_NAME}Config.cmake.in
                               "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
                               INSTALL_DESTINATION ${XTENSOR_PYTHON_CMAKECONFIG_INSTALL_DIR})
+
+# xtensor-python is header-only and does not depend on the architecture.
+# Remove CMAKE_SIZEOF_VOID_P from xtensor-pythonConfigVersion.cmake so that an xtensor-pythonConfig.cmake
+# generated for a 64 bit target can be used for 32 bit targets and vice versa.
+set(_XTENSOR_CMAKE_SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P})
+unset(CMAKE_SIZEOF_VOID_P)
 write_basic_package_version_file(${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
                                  VERSION ${${PROJECT_NAME}_VERSION}
                                  COMPATIBILITY AnyNewerVersion)
+set(CMAKE_SIZEOF_VOID_P ${_XTENSOR_CMAKE_SIZEOF_VOID_P})
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake
               ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake
         DESTINATION ${XTENSOR_PYTHON_CMAKECONFIG_INSTALL_DIR})

test/CMakeLists.txt

@@ -34,28 +34,6 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU"
     else()
         message(FATAL_ERROR "Unsupported compiler -- xtensor requires C++14 support!")
     endif()
-
-    # Enable link time optimization and set the default symbol
-    # visibility to hidden (very important to obtain small binaries)
-    if (NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
-        # Default symbol visibility
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
-
-        # Check for Link Time Optimization support
-        # (GCC/Clang)
-        CHECK_CXX_COMPILER_FLAG("-flto" HAS_LTO_FLAG)
-        if (HAS_LTO_FLAG)
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
-        endif()
-
-        # Intel equivalent to LTO is called IPO
-        if (CMAKE_CXX_COMPILER_ID MATCHES "Intel")
-            CHECK_CXX_COMPILER_FLAG("-ipo" HAS_IPO_FLAG)
-            if (HAS_IPO_FLAG)
-                set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ipo")
-            endif()
-        endif()
-    endif()
 endif()
 
 if(MSVC)
@@ -95,10 +73,7 @@ if (DOWNLOAD_GTEST OR GTEST_SRC_DIR)
                      ${CMAKE_CURRENT_BINARY_DIR}/googletest-build)
 
     set(GTEST_INCLUDE_DIRS "${gtest_SOURCE_DIR}/include")
-    set(GTEST_LIBRARY_DIRS "${gtest_BINARY_DIR}")
-    set(GTEST_LIBRARIES "${GTEST_LIBRARY_DIRS}/gtest.lib")
-    set(GTEST_MAIN_LIBRARIES "${GTEST_LIBRARY_DIRS}/gtest_main.lib")
-    set(GTEST_BOTH_LIBRARIES ${GTEST_LIBRARIES} ${GTEST_MAIN_LIBRARIES})
+    set(GTEST_BOTH_LIBRARIES gtest_main gtest)
 else()
     find_package(GTest REQUIRED)
 endif()
@@ -121,8 +96,8 @@ add_executable(${XTENSOR_PYTHON_TARGET} ${XTENSOR_PYTHON_TESTS} ${XTENSOR_PYTHON
 target_link_libraries(${XTENSOR_PYTHON_TARGET} ${GTEST_BOTH_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${PYTHON_LIBRARIES})
 
 if(DOWNLOAD_GTEST OR GTEST_SRC_DIR)
-    add_custom_target(xtest COMMAND ./test_xtensor_python DEPENDS gtest_main ${XTENSOR_PYTHON_TARGET})
-else()
-    add_custom_target(xtest COMMAND ./test_xtensor_python DEPENDS ${XTENSOR_PYTHON_TARGET})
+    add_dependencies(${XTENSOR_TARGET} gtest_main)
 endif()
 
+add_custom_target(xtest COMMAND ./test_xtensor_python DEPENDS ${XTENSOR_PYTHON_TARGET})
+