libuv: updated to 1.42.0

Version 1.42.0 (Stable)

Changes since version 1.41.0:
* doc: fix code highlighting (Darshan Sen)
* test: move to ASSERT_NULL and ASSERT_NOT_NULL test macros (tjarlama)
* zos: build in ascii code page (Shuowang (Wayne) Zhang)
* zos: don't use nanosecond timestamp fields (Shuowang (Wayne) Zhang)
* zos: introduce zoslib (Shuowang (Wayne) Zhang)
* zos: use strnlen() from zoslib (Shuowang (Wayne) Zhang)
* zos: use nanosleep() from zoslib (Shuowang (Wayne) Zhang)
* zos: use __getargv() from zoslib to get exe path (Shuowang (Wayne) Zhang)
* zos: treat __rfim_utok as binary (Shuowang (Wayne) Zhang)
* zos: use execvpe() to set environ explictly (Shuowang (Wayne) Zhang)
* zos: use custom proctitle implementation (Shuowang (Wayne) Zhang)
* doc: add instructions for building on z/OS (Shuowang (Wayne) Zhang)
* linux,udp: enable full ICMP error reporting (Ondřej Surý)
* test: fix test-udp-send-unreachable (Ondřej Surý)
* include: fix typo in documentation (Tobias Nießen)
* chore: use for(;;) instead of while (Yash Ladha)
* test: remove string + int warning on udp-pummel (Juan José Arboleda)
* cmake: fix linker flags (Zhao Zhili)
* test: fix stack-use-after-scope (Zhao Zhili)
* unix: expose thread_stack_size() internally (Brandon Cheng)
* darwin: use RLIMIT_STACK for fsevents pthread (Brandon Cheng)
* darwin: abort on pthread_attr_init fail (Brandon Cheng)
* benchmark: remove unreachable code (Matvii Hodovaniuk)
* macos: fix memleaks in uv__get_cpu_speed (George Zhao)
* Make Thread Sanitizer aware of file descriptor close in uv__close() (Ondřej
  Surý)
* darwin: fix iOS compilation and functionality (Hayden)
* linux: work around copy_file_range() cephfs bug (Ben Noordhuis)
* zos: implement uv_get_constrained_memory() (Shuowang (Wayne) Zhang)
* zos: fix uv_get_free_memory() (Shuowang (Wayne) Zhang)
* zos: use CVTRLSTG to get total memory accurately (Shuowang (Wayne) Zhang)
* ibmi: Handle interface names longer than 10 chars (Kevin Adler)
* docs: update read-the-docs version of sphinx (Jameson Nash)
* unix: refactor uv_try_write (twosee)
* linux-core: add proper divide by zero assert (yiyuaner)
* misc: remove unnecessary _GNU_SOURCE macros (Darshan Sen)
* test: log to stdout to conform TAP spec (bbara)
* win,fs: fix C4090 warning with MSVC (SeverinLeonhardt)
* build: some systems provide dlopen() in libc (Andy Fiddaman)
* include: add EOVERFLOW status code mapping (Darshan Sen)
* unix,fs: use uv__load_relaxed and uv__store_relaxed (Darshan Sen)
* win: fix string encoding issue of uv_os_gethostname (Eagle Liang)
* unix,process: add uv__write_errno helper function (Ricky Zhou)
* Re-merge "unix,stream: clear read/write states on close/eof" (Jameson Nash)
* unix,core: fix errno handling in uv__getpwuid_r (Darshan Sen)
* errors: map ESOCKTNOSUPPORT errno (Ryan Liptak)
* doc: uv_read_stop always succeeds (Simon Kissane)
* inet: fix inconsistent return value of inet_ntop6 (twosee)
* darwin: fix -Wsometimes-uninitialized warning (twosee)
* stream: introduce uv_try_write2 function (twosee)
* poll,win: UV_PRIORITIZED option should not assert (twosee)
* src: DragonFlyBSD has mmsghdr struct too (David Carlier)
* cleanup,win: Remove _WIN32 guards on threadpool (James M Snell)
* freebsd: fix an incompatible pointer type warning (Darshan Sen)
* core: Correct the conditionals for {cloexec,nonblock}_ioctl (Ali Mohammad
  Pur)
* win,tcp: make uv_close work more like unix (Jameson Nash)
* doc: more accurate list of valid send_handle's (twosee)
* win,tcp: translate system errors correctly (twosee)
* unix: implement cpu_relax() on ppc64 (Ben Noordhuis)
* docs: move list of project links under PR control (Jameson Nash)
* test: wrong pointer arithmetic multiplier (Erkhes N)
* doc: switch discussion forum to github (Jameson Nash)
* idna: fix OOB read in punycode decoder (Ben Noordhuis)
* build: make sure -fvisibility=hidden is set (Santiago Gimeno)
* illumos: event ports to epoll (tjarlama)
* illumos,tty: UV_TTY_MODE_IO waits for 4 bytes (Joshua M. Clulow)
* doc: add vtjnash GPG ID (Jameson Nash)
* linux: read CPU model information on ppc (Richard Lau)
* darwin: fix uv_barrier race condition (Guilherme Íscaro)
* unix,stream: fix loop hang after uv_shutdown (Jameson Nash)
* doc,udp: note that suggested_size is 1 max-sized dgram (Ryan Liptak)
* mingw: fix building for ARM/AArch64 (Martin Storsjö)
* unix: strnlen is not available on Solaris 10 (Claes Nästén)
* sunos: restore use of event ports (Andy Fiddaman)
* sunos,cmake: use thread-safe errno (Andy Fiddaman)


(adam)