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Fix cmakelists of doctests to run generation only once (#2347)

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Custom commands with outputs used in multiple targets are prone to
being executed multiple times in parallel builds (and the repeated
overwrites of the outputs may lead to various hard-to-debug
errors). The fix is to add a custom target that depends on the
custom command and make the existing targets using the outputs
depend on the new custom target.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
This commit is contained in:
Akos Kiss 2018-05-22 09:14:18 +02:00 committed by Robert Sipka
parent 299643400d
commit cc473425d3
1 changed files with 6 additions and 0 deletions
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6
tests/unit-doc/CMakeLists.txt
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@ -59,10 +59,15 @@ add_custom_command(
COMMENT "Generating doctests"
)
# Add custom target to trigger the custom command above. Targets below can/must
# depend on this one so that the custom command gets executed only once.
add_custom_target(all-doc-files DEPENDS ${DOCTEST_COMPILE} ${DOCTEST_LINK} ${DOCTEST_RUN})
# Process compile-only doctests: add them to a dummy library
# (named libcompile-doc-tests.a) to trigger compilation.
if(NOT ("${DOCTEST_COMPILE}" STREQUAL ""))
add_library(compile-doc-tests STATIC ${DOCTEST_COMPILE})
add_dependencies(compile-doc-tests all-doc-files)
target_link_libraries(compile-doc-tests jerry-ext jerry-core jerry-port-default-minimal)
set_property(TARGET compile-doc-tests APPEND_STRING PROPERTY COMPILE_FLAGS "${COMPILE_FLAGS_DOCTEST}")
endif()
@ -74,6 +79,7 @@ macro(doctest_add_executables NAME_PREFIX)
set(TARGET_NAME ${NAME_PREFIX}-${TARGET_NAME})
add_executable(${TARGET_NAME} ${DOCTEST_NAME})
add_dependencies(${TARGET_NAME} all-doc-files)
set_property(TARGET ${TARGET_NAME} APPEND_STRING PROPERTY COMPILE_FLAGS "${COMPILE_FLAGS_DOCTEST}")
set_property(TARGET ${TARGET_NAME} PROPERTY LINK_FLAGS "${LINKER_FLAGS_COMMON}")
target_link_libraries(${TARGET_NAME} jerry-ext jerry-core jerry-port-default-minimal)