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| author | Ratchanan Srirattanamet <ratchanan@ubports.com> | 2022-03-07 18:35:56 +0000 |
|---|---|---|
| committer | Ratchanan Srirattanamet <ratchanan@ubports.com> | 2022-03-07 18:35:56 +0000 |
| commit | 036b96b43f42bb7174e87973a5fb6348a512abca (patch) | |
| tree | f9a4ca4b68eb8c30479c0c2caf844a0c3dcb61a4 /tests/unit/CMakeLists.txt | |
| parent | cefd302d0316728275b1e0107254010ee53f7297 (diff) | |
| download | ayatana-indicator-display-036b96b43f42bb7174e87973a5fb6348a512abca.tar.gz ayatana-indicator-display-036b96b43f42bb7174e87973a5fb6348a512abca.tar.bz2 ayatana-indicator-display-036b96b43f42bb7174e87973a5fb6348a512abca.zip | |
tests/unit: fix cmake custom command race condition
CMake's documentation says [1]:
> Do not list the output in more than one independent target that may
> build in parallel or the two instances of the rule may conflict
> (instead use the add_custom_target() command to drive the command and
> make the other targets depend on that one).
Because gschemas.compiled will be referenced multiple times
independently, a level of redirection is needed to prevent CMake from
generating the rule for the file multiple times.
This is encountered in ayatana-indicator-power as well, and fixed in a
similar way [2].
[1] https://cmake.org/cmake/help/latest/command/add_custom_command.html#generating-files
[2] https://github.com/AyatanaIndicators/ayatana-indicator-power/commit/9a90f932e51db486b166dd38f00e4186e40a1aee
Diffstat (limited to 'tests/unit/CMakeLists.txt')
| -rw-r--r-- | tests/unit/CMakeLists.txt | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tests/unit/CMakeLists.txt b/tests/unit/CMakeLists.txt index a70362a..7d42693 100644 --- a/tests/unit/CMakeLists.txt +++ b/tests/unit/CMakeLists.txt @@ -17,11 +17,17 @@ add_definitions(-DSCHEMA_DIR="${SCHEMA_DIR}") execute_process (COMMAND ${PKG_CONFIG_EXECUTABLE} gio-2.0 --variable glib_compile_schemas OUTPUT_VARIABLE COMPILE_SCHEMA_EXECUTABLE OUTPUT_STRIP_TRAILING_WHITESPACE) +# Because gschemas.compiled will be referenced multiple times independently, a level of +# redirection is needed to prevent CMake from generating the rule for the file multiple +# times, causing a race condition. +# https://discourse.cmake.org/t/race-condition-when-multi-add-custom-target-deps-on-same-file-generated-by-add-custom-command/2358 +# https://bugs.debian.org/892091 (bug for ayatana-indicators-power, but applies here as well) add_custom_command (OUTPUT gschemas.compiled DEPENDS ${CMAKE_BINARY_DIR}/data/org.ayatana.display.gschema.xml COMMAND mkdir -p ${SCHEMA_DIR} COMMAND cp -f ${DISPLAY_SCHEMA} ${SCHEMA_DIR} COMMAND ${COMPILE_SCHEMA_EXECUTABLE} ${SCHEMA_DIR}) +add_custom_target(gschemas-compiled DEPENDS gschemas.compiled) set(SERVICE_LINK_LIBRARIES ${SERVICE_LIB} @@ -46,9 +52,10 @@ add_definitions( function(add_test_by_name name) set(TEST_NAME ${name}) set(COVERAGE_TEST_TARGETS ${COVERAGE_TEST_TARGETS} ${TEST_NAME} PARENT_SCOPE) - add_executable (${TEST_NAME} ${TEST_NAME}.cpp gschemas.compiled) + add_executable (${TEST_NAME} ${TEST_NAME}.cpp) target_link_options(${TEST_NAME} PRIVATE -no-pie) add_test(${TEST_NAME} ${TEST_NAME}) + add_dependencies(${TEST_NAME} gschemas-compiled) set_property(TEST ${TEST_NAME} APPEND PROPERTY ENVIRONMENT ${CTEST_ENVIRONMENT}) target_link_libraries(${TEST_NAME} ${SERVICE_LINK_LIBRARIES} ${TEST_LINK_LIBRARIES} ${THREAD_LINK_LIBRARIES}) endfunction() |