blender/tests/gtests/runner/CMakeLists.txt
Ray molenkamp eff9e2f4ce CMake: plumbing for modern CMake usage
This is the minimal change required to start using modern CMake in the
blender build system. This change is designed to allow small
incremental changes to the build system rather than doing it in one
big bang which would be unmaintainable (for me)

The biggest functional change is, previously all libraries in the
`LIB` section of a `blender_add_lib` call had the `INTERFACE` scope,
which is rarely, if ever the correct scope. This diff changes this to
`PRIVATE`

Concrete implications of this diff :

The `LIB`, `INC` and `INC_SYS` sections of an `blender_add_lib` call
now allow scoping keywords (`PUBLIC`, `PRIVATE,` `INTERFACE`) to
declare the scope of the dependency.

Right now the only library using any modern cmake is
`bf_intern_atomic` which is an header only interface library that will
just advertise its include directories.

This allows us to clean up any `CMakeLists.txt` that adds
`../../../intern/atomic` to its `INC` section to remove it in `INC` by
adding a `PRIVATE bf_intern_atomic` to the `LIB` section.

Pull Request: https://projects.blender.org/blender/blender/pulls/107858
2023-06-27 20:57:50 +02:00

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1.9 KiB
CMake

# SPDX-FileCopyrightText: 2020 Blender Foundation
#
# SPDX-License-Identifier: GPL-2.0-or-later
# Build the test runner. This runner takes care of running all GTests, i.e.
# the code that was built using the blender_add_test_lib() CMake macro (see
# macros.cmake).
set(SRC
blender_test.cc
)
if(WITH_BUILDINFO)
list(APPEND SRC
"$<TARGET_OBJECTS:buildinfoobj>"
)
endif()
# Test libraries need to be linked "whole archive", because they're not
# directly referenced from other code.
get_property(_test_libs GLOBAL PROPERTY BLENDER_TEST_LIBS)
if(WIN32 OR APPLE)
# Windows and macOS set target_link_options after target creation.
elseif(UNIX)
list(APPEND TEST_LIBS "-Wl,--whole-archive" ${_test_libs} "-Wl,--no-whole-archive")
else()
message(FATAL_ERROR "Unknown how to link whole-archive with your compiler ${CMAKE_CXX_COMPILER_ID}")
endif()
# This builds `bin/tests/blender_test`, but does not add it as a single test.
blender_src_gtest_ex(
NAME blender
SRC "${SRC}"
EXTRA_LIBS "${TEST_LIBS}"
SKIP_ADD_TEST
)
setup_platform_linker_libs(blender_test)
if(WIN32)
foreach(_lib ${_test_libs})
# Both target_link_libraries and target_link_options are required here
# target_link_libraries will add any dependent libraries, while just setting
# the wholearchive flag in target link options will not.
target_link_libraries(blender_test PRIVATE ${_lib})
target_link_options(blender_test PRIVATE /wholearchive:$<TARGET_FILE:${_lib}>)
endforeach()
set_target_properties(blender_test PROPERTIES VS_DEBUGGER_ENVIRONMENT "${PLATFORM_ENV_INSTALL};$<TARGET_FILE_DIR:blender>")
elseif(APPLE)
foreach(_lib ${_test_libs})
# We need -force_load for every test library and target_link_libraries will
# deduplicate it. So explicitly set as linker option for every test lib.
target_link_libraries(blender_test PRIVATE ${_lib} "-Wl,-force_load,$<TARGET_PROPERTY:${_lib},IMPORTED_LOCATION>")
endforeach()
endif()
unset(_test_libs)