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A more inclusive handling of Catch2's use of __COUNTER__ #478

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greenc-FNAL merged 3 commits into from
Apr 1, 2026
+7 −9
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A more inclusive handling of Catch2's use of __COUNTER__ #478

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ae95d30
A more inclusive handling of Catch2's use of `__COUNTER__`
greenc-FNAL Mar 30, 2026
d538963
An inclusive _and correct_ handling of Catch2's use of `__COUNTER__`
greenc-FNAL Apr 1, 2026
945b106
Move CATCH_CONFIG_NO_COUNTER to test/CMakeLists.txt to avoid superbui…
Copilot Apr 1, 2026
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12 changes: 3 additions & 9 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ FetchContent_Declare(
FetchContent_Declare(
Catch2
GIT_REPOSITORY https://github.com/catchorg/Catch2.git
GIT_TAG v3.10.0
GIT_TAG v3.13.0
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GIT_SHALLOW ON
EXCLUDE_FROM_ALL # Do not install
FIND_PACKAGE_ARGS
Expand Down Expand Up @@ -89,6 +89,8 @@ set(CTEST_TEST_TIMEOUT 90 CACHE STRING "Per-test timeout (s) for CTest")

# Make tools available
FetchContent_MakeAvailable(Catch2 GSL mimicpp)
# Avoid use of __COUNTER__ to prevent -pedantic warnings in Catch2's TEST_CASE macro
set(CATCH_CONFIG_COUNTER OFF)

include(Modules/private/CreateCoverageTargets.cmake)

Expand Down Expand Up @@ -136,14 +138,6 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
endif()
endif()

# Catch2's TEST_CASE macro uses __COUNTER__, which Clang >= 22 flags as a C2y
# extension under -pedantic. Suppress the warning to avoid -Werror failures.
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "22")
add_compile_options(-Wno-c2y-extensions)
endif()
endif()

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH ON)

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