Update CMake files for googletest submodule.

CMakeLists.txt

@@ -309,7 +309,7 @@ endif()
 # Add subdirectories with the projects
 add_subdirectory( ThirdParty )
 include_directories( SYSTEM ${CMAKE_CURRENT_SOURCE_DIR}/ThirdParty )
-include_directories( SYSTEM ${CMAKE_CURRENT_SOURCE_DIR}/ThirdParty/gtest/include )
+include_directories( SYSTEM ${CMAKE_CURRENT_SOURCE_DIR}/ThirdParty/googletest/googletest/include )
 include_directories( SYSTEM ${CMAKE_CURRENT_SOURCE_DIR}/ThirdParty/autocheck/include )
 include_directories( SYSTEM ${CMAKE_CURRENT_SOURCE_DIR}/ThirdParty/tclap/include )
 include_directories( SYSTEM ${CMAKE_CURRENT_SOURCE_DIR}/ThirdParty/json/include )

Tests/CMakeLists.txt

@@ -39,7 +39,7 @@ set_target_properties(testrunner PROPERTIES FOLDER Testing)
 
 target_link_libraries(testrunner
     ApplicationsFileIO
-    GTest
+    gtest
     MeshGeoToolsLib
     MaterialLib
     MeshLib

ThirdParty/CMakeLists.txt

@@ -17,7 +17,7 @@ if(MSVC)
     set_target_properties(logog PROPERTIES COMPILE_FLAGS /W0)
 endif()
 
-add_subdirectory(gtest)
+add_subdirectory(googletest)
 
 # This is a workaround for Travis builds.
 option(OGS_USE_OPTIONAL_SUBMODULES "Option for enabling optional submodules" OFF)

scripts/cmake/SubmoduleSetup.cmake

@@ -7,9 +7,10 @@ endif()
 set(REQUIRED_SUBMODULES
     ThirdParty/autocheck
     ThirdParty/cmake-modules
-    ThirdParty/vtkdiff
+    ThirdParty/googletest
     ThirdParty/tclap
     ThirdParty/tetgen
+    ThirdParty/vtkdiff
     ${OGS_ADDITIONAL_SUBMODULES_TO_CHECKOUT}
 )
 if(OGS_BUILD_UTILS)