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[cmake] Attempt to fix sanitizer buildbot.

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The generation of the native_export_file end up in
several different makefiles. All those makefiles
write the same file, but can be executed concurrently...
and bad things happen!

llvm-svn: 199356
This commit is contained in:
Quentin Colombet 2014-01-16 06:43:55 +00:00
parent 1beef6f079
commit a367ea144b
1 changed files with 6 additions and 2 deletions
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8
cmake/modules/AddLLVM.cmake
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@ -85,8 +85,12 @@ function(add_llvm_symbol_exports target_name export_file)
# Force re-linking when the exports file changes. Actually, it
# forces recompilation of the source file. The LINK_DEPENDS target
# property only works for makefile-based generators.
set_property(SOURCE ${first_source_file} APPEND PROPERTY
OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file})
# FIXME: This is not safe because this will create the same target
# ${native_export_file} in several different file:
# - One where we emitted ${target_name}_exports
# - One where we emitted the build command for the following object.
# set_property(SOURCE ${first_source_file} APPEND PROPERTY
# OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file})
set_property(DIRECTORY APPEND
PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file})