Ruby-build: Multiple "warning: already initialized constant Etc::"

Created on 29 Jan 2020 · 17Comments · Source: rbenv/ruby-build

$ uname -a
Linux work 4.9.0-11-amd64 rbenv/rbenv#1 SMP Debian 4.9.189-3+deb9u2 (2019-11-11) x86_64 GNU/Linux

$ rbenv --version
rbenv 1.1.2-11-gc46a970

$ ruby --version
ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-linux]

$ rails server
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_AIO_LISTIO_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_AIO_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_AIO_PRIO_DELTA_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_ARG_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_ATEXIT_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_BC_BASE_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_BC_DIM_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_BC_SCALE_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_BC_STRING_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_CHILD_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_CLK_TCK
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_COLL_WEIGHTS_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_DELAYTIMER_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_EXPR_NEST_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_HOST_NAME_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_IOV_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_LINE_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_LOGIN_NAME_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_NGROUPS_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_GETGR_R_SIZE_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_GETPW_R_SIZE_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MQ_OPEN_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MQ_PRIO_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_OPEN_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_ADVISORY_INFO
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_BARRIERS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_ASYNCHRONOUS_IO
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_CLOCK_SELECTION
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_CPUTIME
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_FSYNC
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_IPV6
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_JOB_CONTROL
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MAPPED_FILES
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MEMLOCK
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MEMLOCK_RANGE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MEMORY_PROTECTION
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MESSAGE_PASSING
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_MONOTONIC_CLOCK
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_PRIORITIZED_IO
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_PRIORITY_SCHEDULING
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_RAW_SOCKETS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_READER_WRITER_LOCKS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_REALTIME_SIGNALS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_REGEXP
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SAVED_IDS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SEMAPHORES
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SHARED_MEMORY_OBJECTS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SHELL
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SPAWN
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SPIN_LOCKS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SPORADIC_SERVER
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SS_REPL_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SYNCHRONIZED_IO
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_ATTR_STACKADDR
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_ATTR_STACKSIZE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_CPUTIME
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_PRIO_INHERIT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_PRIO_PROTECT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_PRIORITY_SCHEDULING
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_PROCESS_SHARED
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_ROBUST_PRIO_INHERIT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_ROBUST_PRIO_PROTECT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_SAFE_FUNCTIONS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_SPORADIC_SERVER
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREADS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TIMEOUTS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TIMERS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE_EVENT_FILTER
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE_EVENT_NAME_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE_INHERIT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE_LOG
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE_NAME_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE_SYS_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TRACE_USER_EVENT_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TYPED_MEMORY_OBJECTS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_VERSION
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V7_ILP32_OFF32
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V7_ILP32_OFFBIG
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V7_LP64_OFF64
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V7_LPBIG_OFFBIG
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V6_ILP32_OFF32
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V6_ILP32_OFFBIG
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V6_LP64_OFF64
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_V6_LPBIG_OFFBIG
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_C_BIND
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_C_DEV
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_CHAR_TERM
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_FORT_DEV
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_FORT_RUN
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_LOCALEDEF
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_PBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_PBS_ACCOUNTING
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_PBS_CHECKPOINT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_PBS_LOCATE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_PBS_MESSAGE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_PBS_TRACK
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_SW_DEV
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_UPE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_2_VERSION
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_PAGE_SIZE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_PAGESIZE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_DESTRUCTOR_ITERATIONS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_KEYS_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_STACK_MIN
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_THREAD_THREADS_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_RE_DUP_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_RTSIG_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SEM_NSEMS_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SEM_VALUE_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SIGQUEUE_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_STREAM_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_SYMLOOP_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TIMER_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TTY_NAME_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_TZNAME_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_CRYPT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_ENH_I18N
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_REALTIME
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_REALTIME_THREADS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_SHM
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_STREAMS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_UNIX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_XOPEN_VERSION
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_PHYS_PAGES
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_AVPHYS_PAGES
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_NPROCESSORS_CONF
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::SC_NPROCESSORS_ONLN
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_PATH
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_ILP32_OFF32_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_ILP32_OFF32_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_ILP32_OFF32_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_ILP32_OFFBIG_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_ILP32_OFFBIG_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_LP64_OFF64_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_LP64_OFF64_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_LP64_OFF64_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_LPBIG_OFFBIG_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V7_WIDTH_RESTRICTED_ENVS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_V7_ENV
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_ILP32_OFF32_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_ILP32_OFF32_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_ILP32_OFF32_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_ILP32_OFFBIG_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_LP64_OFF64_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_LP64_OFF64_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_LP64_OFF64_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_LPBIG_OFFBIG_LIBS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_POSIX_V6_WIDTH_RESTRICTED_ENVS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_V6_ENV
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_GNU_LIBC_VERSION
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::CS_GNU_LIBPTHREAD_VERSION
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_FILESIZEBITS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_LINK_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_MAX_CANON
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_MAX_INPUT
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_NAME_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_PATH_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_PIPE_BUF
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_2_SYMLINKS
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_ALLOC_SIZE_MIN
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_REC_INCR_XFER_SIZE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_REC_MAX_XFER_SIZE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_REC_MIN_XFER_SIZE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_REC_XFER_ALIGN
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_SYMLINK_MAX
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_CHOWN_RESTRICTED
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_NO_TRUNC
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_VDISABLE
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_ASYNC_IO
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_PRIO_IO
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Etc::PC_SYNC_IO
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Struct::Passwd
/home/yoones/.rbenv/versions/2.6.5/lib/ruby/2.6.0/x86_64-linux/etc.so: warning: already initialized constant Struct::Group

unconfirmed

Source

yoones

Most helpful comment

I had an issue with this when I used gem update instead of bundle update. I ran bundle clean --force afterward and it cleared the problem up.

agrberg on 2 Apr 2020

👍33 🎉12 ❤2

All 17 comments

(Transferred this issue to ruby-build)

@yoones Thank you for reporting! Do you think this is a bug with how ruby-build builds Ruby 2.6.5? Is it possible that it might be a case of duplicate require in rails server? If you require etc yourself in a fresh process, does it produce the same warnings?

ruby -w -retc -e0

mislav on 29 Jan 2020

I have the exact same problem, and did run the command and not warnings.

vaughnad on 31 Jan 2020

$ ruby -v
ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-linux]

$ ruby -w -retc -e0
-e:1: warning: possibly useless use of a literal in void context

$ rbenv shell 2.7.0

$ ruby -v
ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux]

$ ruby -w -retc -e0
-e:1: warning: possibly useless use of a literal in void context

yoones on 31 Jan 2020

I have the exact same problem.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty

Ruby 2.6.5

wxw-matt on 5 Feb 2020

Same 'problem' =/

$ uname -a
Linux illiria 5.4.18-1-MANJARO #1 SMP PREEMPT Thu Feb 6 11:41:30 UTC 2020 x86_64 GNU/Linux

$ rbenv --version
rbenv 1.1.2-20-g143b2c9

$ ruby-build --version
ruby-build 20200115-8-g73b926b

$ ruby --version
ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-linux]

$ ruby -w -retc -e0
-e:1: warning: possibly useless use of a literal in void context

rjort on 11 Feb 2020

Since plain ruby does not give this warning, this is likely an issue in Rails or its dependent libraries such as https://github.com/Shopify/bootsnap/issues/112

There's nothing to fix in rbenv or ruby-build; these libraries probably to get better at supporting symlinks.

Thank you all for sharing your debugging output!

mislav on 17 Feb 2020

I had this happen to me recently because I somehow had etc installed with rubygems even though it's built into ruby. Was able to fix it with gem uninstall etc.