Compilation failure

[mohanr]

I tried to install eio for the first time.

The following actions will be performed:
  - install eio_posix 0.12 [required by eio_main]
  - install eio_main  0.12
===== 2 to install =====
Do you want to continue? [Y/n] y

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved eio_main.0.12  (cached)
-> retrieved eio_posix.0.12  (cached)
[ERROR] The compilation of eio_posix.0.12 failed at "dune build -p eio_posix -j
        15 @install".

#=== ERROR while compiling eio_posix.0.12 =====================================#
# context     2.1.5 | macos/x86_64 | ocaml-base-compiler.5.0.0 | https://opam.ocaml.org#316bd0cc
# path        ~/Documents/vsr/_opam/.opam-switch/build/eio_posix.0.12
# command     ~/.opam/opam-init/hooks/sandbox.sh build dune build -p eio_posix -j 15 @install
# exit-code   1
# env-file    ~/.opam/log/eio_posix-1984-530377.env
# output-file ~/.opam/log/eio_posix-1984-530377.out
### output ###
# File "lib_eio_posix/dune", line 9, characters 9-24:
# 9 |   (names eio_posix_stubs))
#              ^^^^^^^^^^^^^^^
# (cd _build/default/lib_eio_posix && /usr/bin/cc -O2 -fno-strict-aliasing -fwrapv -pthread -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -g -I /Users/anu/Documents/vsr/_opam/lib/ocaml -I /Users/anu/Documents/vsr/_opam/lib/bigstringaf -I /Users/anu/Documents/vsr/_opam/lib/cstruct -I /Users/anu/Documents/vsr/_opam/lib/domain-local-await -I /Users/anu/Documents/vsr/_opam/lib/eio -I /Users/anu/Docu[...]
# eio_posix_stubs.c:113:7: error: implicit declaration of function 'preadv' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
#   r = preadv(Int_val(v_fd), iov, n_bufs, Int63_val(v_offset));
#       ^
# eio_posix_stubs.c:127:7: error: implicit declaration of function 'pwritev' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
#   r = pwritev(Int_val(v_fd), iov, n_bufs, Int63_val(v_offset));
#       ^
# 2 errors generated.

[talex5]

What platform are you building on? preadv should be present on most systems (Linux, BSD, macos).

[mohanr]

It is Mac.

Mohan

On Wednesday, November 1, 2023, Thomas Leonard @.***> wrote:

What platform are you building on? preadv should be present on most systems (Linux, BSD, macos).

— Reply to this email directly, view it on GitHub https://github.com/ocaml-multicore/eio/issues/636#issuecomment-1788957500, or unsubscribe https://github.com/notifications/unsubscribe-auth/AACZVGQJIIOXGA7WL64UTUTYCJE6XAVCNFSM6AAAAAA6X5SFTWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTOOBYHE2TONJQGA . You are receiving this because you authored the thread.Message ID: @.***>

[talex5]

What version of macos? The CI is passing on macos 12.7.

https://postgrespro.com/list/thread-id/2526417 says:

'pwritev' has been marked as being introduced in macOS 11.0

https://keith.github.io/xcode-man-pages/read.2.html includes it for "Mac OS X 12".

[mohanr]

It is Catalina 10.15.7

[mohanr]

There is a merged branch now with a fix ? Can I use and check ?

[talex5]

Sorry, I just tagged the wrong issue briefly.

https://en.wikipedia.org/wiki/MacOS_Catalina says it is "Unsupported as of November 30, 2022", so I guess there's not much point adding support for it now.

[yawaramin]

This can be closed I guess?