Add an option to use system PR
Upstream PR: https://github.com/ROCm/rocWMMA/pull/353
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -29,8 +29,12 @@ include( CMakeDependentOption )
 cmake_dependent_option( ROCWMMA_BUILD_VALIDATION_TESTS "Build validation tests" ON "ROCWMMA_BUILD_TESTS" OFF )
 cmake_dependent_option( ROCWMMA_BUILD_BENCHMARK_TESTS "Build benchmarking tests" OFF "ROCWMMA_BUILD_TESTS" OFF )
 cmake_dependent_option( ROCWMMA_BUILD_EXTENDED_TESTS "Build extended test parameter coverage" OFF "ROCWMMA_BUILD_TESTS" OFF )
+cmake_dependent_option( ROCWMMA_USE_SYSTEM_GOOGLETEST "Use system Google Test library instead of downloading and building it" OFF "ROCWMMA_BUILD_TESTS" OFF )
 
 # Test/benchmark requires additional dependencies
+if(ROCWMMA_USE_SYSTEM_GOOGLETEST)
+  find_package(GTest REQUIRED)
+else()
 include( FetchContent )
 
 FetchContent_Declare(
@@ -53,6 +57,7 @@ if(NOT googletest_POPULATED)
   # Restore shared libs setting
   set(BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS_OLD} CACHE INTERNAL "Build SHARED libraries" FORCE)
 endif()
+endif()
 
 set(ROCWMMA_TEST_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR})
 set(ROCWMMA_COMMON_TEST_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/hip_device.cpp