Merge pull request ClickHouse#79286 from ClickHouse/fix-nixos-build

Fix build on NixOS

Author: thevar1able

src/Common/logger_useful.h

@@ -118,19 +118,19 @@ constexpr bool constexprContains(std::string_view haystack, std::string_view nee
     }                                                                                                               \
     catch (const Poco::Exception & logger_exception)                                                                \
     {                                                                                                               \
-        ::write(STDERR_FILENO, static_cast<const void *>(MESSAGE_FOR_EXCEPTION_ON_LOGGING), sizeof(MESSAGE_FOR_EXCEPTION_ON_LOGGING)); \
+        (void)::write(STDERR_FILENO, static_cast<const void *>(MESSAGE_FOR_EXCEPTION_ON_LOGGING), sizeof(MESSAGE_FOR_EXCEPTION_ON_LOGGING)); \
         const std::string & logger_exception_message = logger_exception.message();                                  \
-        ::write(STDERR_FILENO, static_cast<const void *>(logger_exception_message.data()), logger_exception_message.size()); \
+        (void)::write(STDERR_FILENO, static_cast<const void *>(logger_exception_message.data()), logger_exception_message.size()); \
     }                                                                                                               \
     catch (const std::exception & logger_exception)                                                                 \
     {                                                                                                               \
-        ::write(STDERR_FILENO, static_cast<const void *>(MESSAGE_FOR_EXCEPTION_ON_LOGGING), sizeof(MESSAGE_FOR_EXCEPTION_ON_LOGGING)); \
+        (void)::write(STDERR_FILENO, static_cast<const void *>(MESSAGE_FOR_EXCEPTION_ON_LOGGING), sizeof(MESSAGE_FOR_EXCEPTION_ON_LOGGING)); \
         const char * logger_exception_message = logger_exception.what();                                            \
-        ::write(STDERR_FILENO, static_cast<const void *>(logger_exception_message), strlen(logger_exception_message)); \
+        (void)::write(STDERR_FILENO, static_cast<const void *>(logger_exception_message), strlen(logger_exception_message)); \
     }                                                                                                               \
     catch (...)                                                                                                     \
     {                                                                                                               \
-        ::write(STDERR_FILENO, static_cast<const void *>(MESSAGE_FOR_EXCEPTION_ON_LOGGING), sizeof(MESSAGE_FOR_EXCEPTION_ON_LOGGING)); \
+        (void)::write(STDERR_FILENO, static_cast<const void *>(MESSAGE_FOR_EXCEPTION_ON_LOGGING), sizeof(MESSAGE_FOR_EXCEPTION_ON_LOGGING)); \
     }                                                                                                               \
     ProfileEvents::incrementLoggerElapsedNanoseconds(_logger_watch.elapsedNanoseconds());                           \
 } while (false)

src/Storages/FileLog/DirectoryWatcherBase.cpp

@@ -156,7 +156,7 @@ void DirectoryWatcherBase::start()
 void DirectoryWatcherBase::stop()
 {
     stopped = true;
-    ::write(event_pipe.fds_rw[1], "\0", 1);
+    (void)::write(event_pipe.fds_rw[1], "\0", 1);
     if (watch_task)
         watch_task->deactivate();
 }