Commit 495dcf8d964e0b3a712f9345554a03d450851d8a
2021-03-02T16:27:39
mbrtowc: port to AIX 7.1 with xlc 12.1 Fix a problem with locks when building GNU Tar (Savannah commit 55f2a0772e08b9febac3ac0de5cb048d4c60d2f5) on AIX 7.1 with IBM XL C/C++ V12.1 using ‘./configure CC=xlc’. The link fails due to missing definitions of pthread_mutex_lock and pthread_mutex_unlock. GNU Tar uses unlocked-io and so should not need to worry about multithreading or locks. * lib/mbtowc-lock.h (mbtowc_with_lock) [USE_UNLOCKED_IO]: Don’t bother with locks, since this app is single-threaded. There may be similar linking problems with lib/nl_langinfo.c and lib/setlocale_null.c but my GNU Tar build didn’t run into them, so I left them alone for now.