Attempt to Fix Broken C++ Build After cudftestutil is Made a Shared…

… Lib (#996)

This PR aims to fix broken C++ build.

Authors:
  - Michael Wang (https://github.com/isVoid)

Approvers:
  - Bradley Dice (https://github.com/bdice)
  - Mark Harris (https://github.com/harrism)
  - Mark Sadang (https://github.com/msadang)

URL: #996

conda/recipes/libcuspatial/meta.yaml

@@ -40,6 +40,7 @@ requirements:
     - sysroot_{{ target_platform }} {{ sysroot_version }}
   host:
     - cudatoolkit ={{ cuda_version }}
+    - doxygen
     - gmock {{ gtest_version }}
     - gtest {{ gtest_version }}
     - libcudf ={{ minor_version }}

cpp/CMakeLists.txt

@@ -103,7 +103,10 @@ include(cmake/Modules/ConfigureCUDA.cmake)
 rapids_cpm_init()
 # find or add cuDF
 include(cmake/thirdparty/CUSPATIAL_GetCUDF.cmake)
-
+# find or install GoogleTest
+if (CUSPATIAL_BUILD_TESTS)
+    include(cmake/thirdparty/get_gtest.cmake)
+endif()
 
 ###################################################################################################
 # - library targets -------------------------------------------------------------------------------
@@ -279,9 +282,10 @@ rapids_export(
 # * build documentation ----------------------------------------------------------------------------
 
 find_package(Doxygen)
-if(Doxygen_FOUND)
 
-# doc targets for cuDF
+if(DOXYGEN_FOUND)
+
+# doc targets for cuSpatial
 add_custom_command(
   OUTPUT CUSPATIAL_DOXYGEN
   WORKING_DIRECTORY ${CUSPATIAL_SOURCE_DIR}/doxygen

cpp/cmake/thirdparty/get_gtest.cmake

@@ -0,0 +1,39 @@
+# =============================================================================
+# Copyright (c) 2023, NVIDIA CORPORATION.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+# in compliance with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software distributed under the License
+# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+# or implied. See the License for the specific language governing permissions and limitations under
+# the License.
+# =============================================================================
+
+# This function finds gtest and sets any additional necessary environment variables.
+function(find_and_configure_gtest)
+  include(${rapids-cmake-dir}/cpm/gtest.cmake)
+
+  # Find or install GoogleTest
+  rapids_cpm_gtest(BUILD_EXPORT_SET cuspatial-testing-exports INSTALL_EXPORT_SET cuspatial-testing-exports)
+
+  if(GTest_ADDED)
+    rapids_export(
+      BUILD GTest
+      VERSION ${GTest_VERSION}
+      EXPORT_SET GTestTargets
+      GLOBAL_TARGETS gtest gmock gtest_main gmock_main
+      NAMESPACE GTest::
+    )
+
+    include("${rapids-cmake-dir}/export/find_package_root.cmake")
+    rapids_export_find_package_root(
+      BUILD GTest [=[${CMAKE_CURRENT_LIST_DIR}]=] cuspatial-testing-exports
+    )
+  endif()
+
+endfunction()
+
+find_and_configure_gtest()