interprocess_sync_file_unittest.cc: In member function ‘virtual void isc::util::{anonymous}::InterprocessSyncFileTest_TestLock_Test::TestBody()’:
interprocess_sync_file_unittest.cc:71:12: error: ignoring return value of ‘int pipe(int*)’, declared with attribute warn_unused_result [-Werror=unused-result]
interprocess_sync_file_unittest.cc:88:45: error: ignoring return value of ‘ssize_t write(int, const void*, size_t)’, declared with attribute warn_unused_result [-Werror=unused-result]
interprocess_sync_file_unittest.cc: In function ‘unsigned char isc::util::{anonymous}::parentReadLockedState(int)’:
interprocess_sync_file_unittest.cc:48:40: error: ignoring return value of ‘ssize_t read(int, void*, size_t)’, declared with attribute warn_unused_result [-Werror=unused-result]
interprocess_sync_file_unittest.cc: In member function ‘virtual void isc::util::{anonymous}::InterprocessSyncFileTest_TestMultipleFilesForked_Test::TestBody()’:
interprocess_sync_file_unittest.cc:133:12: error: ignoring return value of ‘int pipe(int*)’, declared with attribute warn_unused_result [-Werror=unused-result]
interprocess_sync_file_unittest.cc:147:45: error: ignoring return value of ‘ssize_t write(int, const void*, size_t)’, declared with attribute warn_unused_result [-Werror=unused-result]