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Prefer find_package(GTest) over FetchContent #3

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Merged
deltaeecs merged 3 commits into from
Dec 3, 2025
Merged

Prefer find_package(GTest) over FetchContent #3

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6d1df77
Initial plan
Copilot Dec 3, 2025
e59f91d
Prefer find_package(GTest) over FetchContent, add CSR4MPI_FORCE_FETCH…
Copilot Dec 3, 2025
23227fb
Fix code review: check both GTest_FOUND and GTEST_FOUND for compatibi…
Copilot Dec 3, 2025
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27 changes: 20 additions & 7 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -10,16 +10,29 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_subdirectory(src)

include(FetchContent)
# GTest discovery: prefer system find_package, fallback to FetchContent
option(CSR4MPI_FORCE_FETCH_GTEST "Force FetchContent for GoogleTest instead of find_package" OFF)

FetchContent_Declare(
googletest
URL https://github.com/google/googletest/archive/refs/tags/v1.15.2.zip
)
if(NOT CSR4MPI_FORCE_FETCH_GTEST)
find_package(GTest QUIET)
endif()

set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
if(GTest_FOUND OR GTEST_FOUND)
message(STATUS "Using system GTest via find_package")
else()
message(STATUS "GTest not found via find_package, using FetchContent")
include(FetchContent)

FetchContent_MakeAvailable(googletest)
FetchContent_Declare(
googletest
URL https://github.com/google/googletest/archive/refs/tags/v1.15.2.zip
DOWNLOAD_EXTRACT_TIMESTAMP TRUE
)

set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

FetchContent_MakeAvailable(googletest)
endif()

include(CTest)
enable_testing()
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