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Don't build Catch2WithMain target by default for v2 

The `Catch2WithMain` target was added experimentally for v2.13.4
to provide potentially better compilation (and link) times to users.
However, having it compiled by default causes worse experience for
people who do not use it, and for the v2 versions the single include
distribution is still the main one.

Closes #2142
This commit is contained in:
Martin Hořeňovský 2021-04-05 15:17:28 +02:00
parent b8b03da534
commit cec35630fb
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GPG Key ID: DE48307B8B0D381A
1 changed files with 18 additions and 10 deletions
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28
CMakeLists.txt
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@ -25,12 +25,12 @@ option(CATCH_USE_VALGRIND "Perform SelfTests with Valgrind" OFF)
option(CATCH_BUILD_TESTING "Build SelfTest project" ON)
option(CATCH_BUILD_EXAMPLES "Build documentation examples" OFF)
option(CATCH_BUILD_EXTRA_TESTS "Build extra tests" OFF)
option(CATCH_BUILD_STATIC_LIBRARY "Builds static library from the main implementation. EXPERIMENTAL" OFF)
option(CATCH_ENABLE_COVERAGE "Generate coverage for codecov.io" OFF)
option(CATCH_ENABLE_WERROR "Enable all warnings as errors" ON)
option(CATCH_INSTALL_DOCS "Install documentation alongside library" ON)
option(CATCH_INSTALL_HELPERS "Install contrib alongside library" ON)
# define some folders
set(CATCH_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(SELF_TEST_DIR ${CATCH_DIR}/projects/SelfTest)
@ -104,15 +104,17 @@ endif()
add_library(Catch2::Catch2 ALIAS Catch2)
# Hacky support for compiling the impl into a static lib
add_library(Catch2WithMain ${CMAKE_CURRENT_LIST_DIR}/src/catch_with_main.cpp)
target_link_libraries(Catch2WithMain PUBLIC Catch2)
add_library(Catch2::Catch2WithMain ALIAS Catch2WithMain)
if (CATCH_BUILD_STATIC_LIBRARY)
add_library(Catch2WithMain ${CMAKE_CURRENT_LIST_DIR}/src/catch_with_main.cpp)
target_link_libraries(Catch2WithMain PUBLIC Catch2)
add_library(Catch2::Catch2WithMain ALIAS Catch2WithMain)
# Make the build reproducible on versions of g++ and clang that supports -ffile-prefix-map
if(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 8) OR
("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 10))
target_compile_options(Catch2WithMain PRIVATE "-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.")
endif()
# Make the build reproducible on versions of g++ and clang that supports -ffile-prefix-map
if(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 8) OR
("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" AND NOT ${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 10))
target_compile_options(Catch2WithMain PRIVATE "-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.")
endif()
endif(CATCH_BUILD_STATIC_LIBRARY)
# Only perform the installation steps when Catch is not being used as
# a subproject via `add_subdirectory`, or the destinations will break,
@ -128,11 +130,17 @@ if (NOT_SUBPROJECT)
${CATCH_CMAKE_CONFIG_DESTINATION}
)
# Workaround lack of generator expressions in install(TARGETS
set(InstallationTargets Catch2)
if (TARGET Catch2WithMain)
list(APPEND InstallationTargets Catch2WithMain)
endif()
# create and install an export set for catch target as Catch2::Catch
install(
TARGETS
Catch2 Catch2WithMain
${InstallationTargets}
EXPORT
Catch2Targets
DESTINATION