[tarantool-patches] Re: [PATCH] cmake: fix sync_file_range detection
Konstantin Osipov
kostja at tarantool.org
Tue Oct 16 21:55:26 MSK 2018
* Vladimir Davydov <vdavydov.dev at gmail.com> [18/10/06 19:34]:
> sync_file_range is declared only if _GNU_SOURCE macro is defined.
> Also, in order to be used in a source file, HAVE_SYNC_FILE_RANGE
> must be present in config.h.cmake.
>
> Fixes commit caae99e5eaa0 ("Refactor xlog writer").
> ---
> https://github.com/tarantool/tarantool/commits/dv/cmake-fix-gnu-symbol-detection
>
> CMakeLists.txt | 2 ++
> src/trivia/config.h.cmake | 1 +
> 2 files changed, 3 insertions(+)
>
> diff --git a/CMakeLists.txt b/CMakeLists.txt
> index bf68d187..b26d2abf 100644
> --- a/CMakeLists.txt
> +++ b/CMakeLists.txt
> @@ -69,6 +69,8 @@ include(cmake/profile.cmake)
> include(cmake/module.cmake)
> include(cmake/thread.cmake)
>
> +list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
> +
Uhm, why are we defining this here and not where we check for sync
file range?
> check_symbol_exists(MAP_ANON sys/mman.h HAVE_MAP_ANON)
> check_symbol_exists(MAP_ANONYMOUS sys/mman.h HAVE_MAP_ANONYMOUS)
> check_include_file(sys/time.h HAVE_SYS_TIME_H)
--
Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
http://tarantool.io - www.twitter.com/kostja_osipov
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