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Posted to issues@arrow.apache.org by "Uwe Korn (Jira)" <ji...@apache.org> on 2020/09/15 07:49:00 UTC
[jira] [Created] (ARROW-10011) [C++] Make FindRE2.cmake re-entrant
Uwe Korn created ARROW-10011:
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Summary: [C++] Make FindRE2.cmake re-entrant
Key: ARROW-10011
URL: https://issues.apache.org/jira/browse/ARROW-10011
Project: Apache Arrow
Issue Type: Bug
Components: C++, FlightRPC
Affects Versions: 1.0.1, 1.0.0
Reporter: Uwe Korn
Assignee: Uwe Korn
Repeated calls to FindRE2.cmake try to recreate the exisiting target {{RE2::re2}} which is prohibited by CMake and fails with the following error:
{code}
CMake Warning (dev) at C:/Miniconda37-x64/envs/arrow/Library/share/cmake-3.17/Modules/FindPackageHandleStandardArgs.cmake:272 (message):
The package name passed to `find_package_handle_standard_args` (RE2) does
not match the name of the calling package (re2). This can lead to problems
in calling code that expects `find_package` result variables (e.g.,
`_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
cmake_modules/FindRE2.cmake:63 (find_package_handle_standard_args)
C:/Miniconda37-x64/envs/arrow/Library/lib/cmake/grpc/gRPCConfig.cmake:21 (find_package)
cmake_modules/ThirdpartyToolchain.cmake:2472 (find_package)
CMakeLists.txt:495 (include)
This warning is for project developers. Use -Wno-dev to suppress it.
CMake Error at cmake_modules/FindRE2.cmake:66 (add_library):
add_library cannot create imported target "RE2::re2" because another target
with the same name already exists.
Call Stack (most recent call first):
C:/Miniconda37-x64/envs/arrow/Library/lib/cmake/grpc/gRPCConfig.cmake:21 (find_package)
cmake_modules/ThirdpartyToolchain.cmake:2472 (find_package)
CMakeLists.txt:495 (include)
{code}
Note that this issue only occurs currently on case-insensitive file systems when ARROW_FLIGHT=ON is set.
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