(not at the head of any monitored branch or PR)
2026-03-02 19:35.55: New job: test zlib.0.6 with dune.3.22.0~alpha0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29497/head (118a690db616b1df5c53d5fa00eb70791a80ae2c)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29497/head" && git reset --hard 118a690d
git fetch origin master
git merge --no-edit a7b8d1036328cf727af175b657f3d2b732b4d868
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:4add1601135529e9f2e403a25c1c640231c0e871e87f88cf8feab4be5095104c
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn dune.3.22.0~alpha0 3.22.0~alpha0
RUN opam reinstall dune.3.22.0~alpha0; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'dune.3.22.0~alpha0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN opam reinstall zlib.0.6; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'zlib.0.6' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test zlib.0.6) || true
RUN opam reinstall --with-test --verbose zlib.0.6; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'zlib.0.6' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1

END-OF-DOCKERFILE
docker build -f ../Dockerfile .

2026-03-02 19:35.55: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:4add1601135529e9f2e403a25c1c640231c0e871e87f88cf8feab4be5095104c-dune.3.22.0~alpha0-zlib.0.6-118a690db616b1df5c53d5fa00eb70791a80ae2c"
2026-03-02 19:35.55: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:4add1601135529e9f2e403a25c1c640231c0e871e87f88cf8feab4be5095104c)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "opam option solver=builtin-0install && opam config report"))
 (env OPAMDOWNLOADJOBS 1)
 (env OPAMERRLOGLEN 0)
 (env OPAMPRECISETRACKING 1)
 (env CI true)
 (env OPAM_REPO_CI true)
 (run (shell "rm -rf opam-repository/"))
 (copy (src .) (dst opam-repository/))
 (run (shell "opam repository set-url --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn dune.3.22.0~alpha0 3.22.0~alpha0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall dune.3.22.0~alpha0;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'dune.3.22.0~alpha0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall zlib.0.6;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'zlib.0.6' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test zlib.0.6) || true"))
 (run (shell  "opam reinstall --with-test --verbose zlib.0.6;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'zlib.0.6' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-02 19:35.55: Waiting for resource in pool OCluster
2026-03-03 07:27.31: Waiting for worker…
2026-03-03 07:31.52: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
All commits already cached
Updating files:  70% (12982/18363)
Updating files:  71% (13038/18363)
Updating files:  72% (13222/18363)
Updating files:  73% (13405/18363)
Updating files:  74% (13589/18363)
Updating files:  75% (13773/18363)
Updating files:  76% (13956/18363)
Updating files:  77% (14140/18363)
Updating files:  78% (14324/18363)
Updating files:  79% (14507/18363)
Updating files:  80% (14691/18363)
Updating files:  81% (14875/18363)
Updating files:  82% (15058/18363)
Updating files:  83% (15242/18363)
Updating files:  84% (15425/18363)
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Updating files:  86% (15793/18363)
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Updating files:  99% (18180/18363)
Updating files: 100% (18363/18363)
Updating files: 100% (18363/18363), done.
HEAD is now at a7b8d10363 Merge pull request #29489 from anuragsoni/opam-publish-kqueue.0.7.0
Updating a7b8d10363..118a690db6
Fast-forward
 .../chrome-trace/chrome-trace.3.22.0~alpha0/opam   | 39 +++++++++++
 .../dune-action-plugin.3.22.0~alpha0/opam          | 52 +++++++++++++++
 .../dune-action-trace.3.22.0~alpha0/opam           | 40 ++++++++++++
 .../dune-build-info.3.22.0~alpha0/opam             | 45 +++++++++++++
 .../dune-configurator.3.22.0~alpha0/opam           | 49 ++++++++++++++
 packages/dune-glob/dune-glob.3.22.0~alpha0/opam    | 42 ++++++++++++
 .../dune-private-libs.3.22.0~alpha0/opam           | 50 +++++++++++++++
 .../dune-rpc-lwt/dune-rpc-lwt.3.22.0~alpha0/opam   | 41 ++++++++++++
 packages/dune-rpc/dune-rpc.3.22.0~alpha0/opam      | 44 +++++++++++++
 packages/dune-site/dune-site.3.22.0~alpha0/opam    | 37 +++++++++++
 packages/dune/dune.3.22.0~alpha0/opam              | 75 ++++++++++++++++++++++
 packages/dyn/dyn.3.22.0~alpha0/opam                | 40 ++++++++++++
 packages/fs-io/fs-io.3.22.0~alpha0/opam            | 39 +++++++++++
 packages/ocamlc-loc/ocamlc-loc.3.22.0~alpha0/opam  | 43 +++++++++++++
 packages/ordering/ordering.3.22.0~alpha0/opam      | 38 +++++++++++
 packages/stdune/stdune.3.22.0~alpha0/opam          | 46 +++++++++++++
 .../top-closure/top-closure.3.22.0~alpha0/opam     | 38 +++++++++++
 packages/xdg/xdg.3.22.0~alpha0/opam                | 39 +++++++++++
 18 files changed, 797 insertions(+)
 create mode 100644 packages/chrome-trace/chrome-trace.3.22.0~alpha0/opam
 create mode 100644 packages/dune-action-plugin/dune-action-plugin.3.22.0~alpha0/opam
 create mode 100644 packages/dune-action-trace/dune-action-trace.3.22.0~alpha0/opam
 create mode 100644 packages/dune-build-info/dune-build-info.3.22.0~alpha0/opam
 create mode 100644 packages/dune-configurator/dune-configurator.3.22.0~alpha0/opam
 create mode 100644 packages/dune-glob/dune-glob.3.22.0~alpha0/opam
 create mode 100644 packages/dune-private-libs/dune-private-libs.3.22.0~alpha0/opam
 create mode 100644 packages/dune-rpc-lwt/dune-rpc-lwt.3.22.0~alpha0/opam
 create mode 100644 packages/dune-rpc/dune-rpc.3.22.0~alpha0/opam
 create mode 100644 packages/dune-site/dune-site.3.22.0~alpha0/opam
 create mode 100644 packages/dune/dune.3.22.0~alpha0/opam
 create mode 100644 packages/dyn/dyn.3.22.0~alpha0/opam
 create mode 100644 packages/fs-io/fs-io.3.22.0~alpha0/opam
 create mode 100644 packages/ocamlc-loc/ocamlc-loc.3.22.0~alpha0/opam
 create mode 100644 packages/ordering/ordering.3.22.0~alpha0/opam
 create mode 100644 packages/stdune/stdune.3.22.0~alpha0/opam
 create mode 100644 packages/top-closure/top-closure.3.22.0~alpha0/opam
 create mode 100644 packages/xdg/xdg.3.22.0~alpha0/opam

(from ocaml/opam:debian-13-ocaml-5.4@sha256:4add1601135529e9f2e403a25c1c640231c0e871e87f88cf8feab4be5095104c)
2026-03-03 07:31.55 ---> using "3c18c9e472a4f76bc128dc0a5a1e21158ba3dbd0d6773ace6ec33f0cfe6fac9b" from cache

/: (user (uid 1000) (gid 1000))

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-03 07:31.55 ---> using "7a3442ad99cd957e3ce65df65cad40aee4354c6d524c7813b8b589bc410c187e" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
Configuring from /home/opam/.opamrc-sandbox, then /home/opam/.opamrc, and finally from built-in defaults.
Checking for available remotes: rsync and local, git.
  - you won't be able to use mercurial repositories unless you install the hg command on your system.
  - you won't be able to use darcs repositories unless you install the darcs command on your system.

This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-03-03 07:31.55 ---> using "4214446d06a5b764dff5167574d07a5b4441731262795df63d7a3c5f64e1a189" from cache

/home/opam: (run (shell "opam option solver=builtin-0install && opam config report"))
Set to 'builtin-0install' the field solver in global configuration
# opam config report
# opam-version         2.5.0
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# invariant            ["ocaml-base-compiler" {>= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2026-03-03 07:31.55 ---> using "8bf276ecf196c09ac4fb294f887dce47d9744c212aabbbad5d313f0a4179272a" from cache

/home/opam: (env OPAMDOWNLOADJOBS 1)

/home/opam: (env OPAMERRLOGLEN 0)

/home/opam: (env OPAMPRECISETRACKING 1)

/home/opam: (env CI true)

/home/opam: (env OPAM_REPO_CI true)

/home/opam: (run (shell "rm -rf opam-repository/"))
2026-03-03 07:31.55 ---> using "c04e3f046c8eaf07d3d8f4b30debe47a6f7742bcdbfbfeb4d464149613cd35cd" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-03 07:31.56 ---> using "eec15e3492f38e67613d1a01ad00877a9a3ba45d19f73e6250e19cd2bda0a34c" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-03 07:31.56 ---> using "b219e5557ed366603222e74c0319619404e73f91801374c46bc0615017490834" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [113 kB]
- Fetched 203 kB in 0s (1439 kB/s)
- Reading package lists...
- 
2026-03-03 07:31.56 ---> using "411e66a2e15299fe700f96de3484c141af0207f3778de7985d9b3b9532bed7f1" from cache

/home/opam: (run (shell "opam pin add -k version -yn dune.3.22.0~alpha0 3.22.0~alpha0"))
dune is now pinned to version 3.22.0~alpha0
2026-03-03 07:31.56 ---> using "2f9d235ba473e057f7f5361d0a2909273f5e0fdc881489604942445353473ef7" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall dune.3.22.0~alpha0;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'dune.3.22.0~alpha0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
dune.3.22.0~alpha0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install dune 3.22.0~alpha0 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.22.0~alpha0  (cached)
-> installed dune.3.22.0~alpha0
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-03 07:32.35 ---> saved as "f408636eb0246d657c1391cb7970d0cd4140119dfc0439ba4e0d991b34b6c9dc"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall zlib.0.6;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'zlib.0.6' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
zlib.0.6 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 3 packages
  - install conf-pkg-config 4   [required by conf-zlib]
  - install conf-zlib       1   [required by zlib]
  - install zlib            0.6

The following system packages will first need to be installed:
    pkg-config zlib1g-dev

<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>

opam believes some required external dependencies are missing. opam can:
> 1. Run apt-get to install them (may need root/sudo access)
  2. Display the recommended apt-get command and wait while you run it manually (e.g. in another terminal)
  3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
  4. Abort the installation

[1/2/3/4] 1

+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "pkg-config" "zlib1g-dev"
- Selecting previously unselected package libpkgconf3:amd64.
- (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20654 files and directories currently installed.)
- Preparing to unpack .../libpkgconf3_1.8.1-4_amd64.deb ...
- Unpacking libpkgconf3:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkgconf-bin.
- Preparing to unpack .../pkgconf-bin_1.8.1-4_amd64.deb ...
- Unpacking pkgconf-bin (1.8.1-4) ...
- Selecting previously unselected package pkgconf:amd64.
- Preparing to unpack .../pkgconf_1.8.1-4_amd64.deb ...
- Unpacking pkgconf:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkg-config:amd64.
- Preparing to unpack .../pkg-config_1.8.1-4_amd64.deb ...
- Unpacking pkg-config:amd64 (1.8.1-4) ...
- Selecting previously unselected package zlib1g-dev:amd64.
- Preparing to unpack .../zlib1g-dev_1%3a1.3.dfsg+really1.3.1-1+b1_amd64.deb ...
- Unpacking zlib1g-dev:amd64 (1:1.3.dfsg+really1.3.1-1+b1) ...
- Setting up libpkgconf3:amd64 (1.8.1-4) ...
- Setting up pkgconf-bin (1.8.1-4) ...
- Setting up zlib1g-dev:amd64 (1:1.3.dfsg+really1.3.1-1+b1) ...
- Setting up pkgconf:amd64 (1.8.1-4) ...
- Setting up pkg-config:amd64 (1.8.1-4) ...
- Processing triggers for libc-bin (2.41-12+deb13u1) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved zlib.0.6  (cached)
-> installed conf-pkg-config.4
-> installed conf-zlib.1
[ERROR] The compilation of zlib.0.6 failed at "dune build -p zlib".

#=== ERROR while compiling zlib.0.6 ===========================================#
# context              2.5.0 | linux/x86_64 | ocaml-base-compiler.5.4.0 | file:///home/opam/opam-repository
# path                 ~/.opam/5.4/.opam-switch/build/zlib.0.6
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p zlib
# exit-code            1
# env-file             ~/.opam/log/zlib-7-630aff.env
# output-file          ~/.opam/log/zlib-7-630aff.out
### output ###
# File "src/dune", line 7, characters 10-20:
# 7 |  (c_names zlib_stubs)
#               ^^^^^^^^^^
# (cd _build/default/src && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -fPIC -pthread -D_FILE_OFFSET_BITS=64 -O2 -fno-strict-aliasing -fwrapv -fPIC -pthread -Wall -Wextra -Wno-unused-parameter -pedantic -std=c99 -g -I /home/opam/.opam/5.4/lib/ocaml -o zlib_stubs.o -c zlib_stubs.c)
# In file included from /home/opam/.opam/5.4/lib/ocaml/caml/mlvalues.h:20,
#                  from zlib_stubs.c:25:
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:88:9: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#    88 | typedef _Atomic uintnat atomic_uintnat;
#       |         ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:89:9: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#    89 | typedef _Atomic intnat atomic_intnat;
#       |         ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:304:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   304 | extern _Atomic caml_timing_hook caml_major_slice_begin_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:305:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   305 | extern _Atomic caml_timing_hook caml_major_slice_end_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:306:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   306 | extern _Atomic caml_timing_hook caml_minor_gc_begin_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:307:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   307 | extern _Atomic caml_timing_hook caml_minor_gc_end_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:308:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   308 | extern _Atomic caml_timing_hook caml_finalise_begin_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:309:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   309 | extern _Atomic caml_timing_hook caml_finalise_end_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:310:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   310 | extern _Atomic caml_timing_hook caml_domain_terminated_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:371:30: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   371 |   CAMLnoret Caml_inline void caml_abort(void) {
#       |                              ^~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:436:8: warning: ISO C99 does not support the '_Atomic' qualifier [-Wpedantic]
#   436 | extern _Atomic fatal_error_hook caml_fatal_error_hook;
#       |        ^~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:439:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   439 | CAMLnoret CAMLextern void caml_fatal_error (const char *, ...)
#       |                           ^~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:17:1: note: in expansion of macro 'DOMAIN_STATE'
#    17 | DOMAIN_STATE(atomic_uintnat, young_limit)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:28:1: note: in expansion of macro 'DOMAIN_STATE'
#    28 | DOMAIN_STATE(value*, young_ptr)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:31:1: note: in expansion of macro 'DOMAIN_STATE'
#    31 | DOMAIN_STATE(value*, young_start)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:34:1: note: in expansion of macro 'DOMAIN_STATE'
#    34 | DOMAIN_STATE(value*, young_end)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:37:1: note: in expansion of macro 'DOMAIN_STATE'
#    37 | DOMAIN_STATE(value*, young_trigger)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:40:1: note: in expansion of macro 'DOMAIN_STATE'
#    40 | DOMAIN_STATE(struct stack_info*, current_stack)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:43:1: note: in expansion of macro 'DOMAIN_STATE'
#    43 | DOMAIN_STATE(void*, exn_handler)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:46:1: note: in expansion of macro 'DOMAIN_STATE'
#    46 | DOMAIN_STATE(intnat, action_pending)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:50:1: note: in expansion of macro 'DOMAIN_STATE'
#    50 | DOMAIN_STATE(struct c_stack_link*, c_stack)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:54:1: note: in expansion of macro 'DOMAIN_STATE'
#    54 | DOMAIN_STATE(struct stack_info**, stack_cache)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:57:1: note: in expansion of macro 'DOMAIN_STATE'
#    57 | DOMAIN_STATE(value*, gc_regs_buckets)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:61:1: note: in expansion of macro 'DOMAIN_STATE'
#    61 | DOMAIN_STATE(value*, gc_regs)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:65:1: note: in expansion of macro 'DOMAIN_STATE'
#    65 | DOMAIN_STATE(struct caml_minor_tables*, minor_tables)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:67:1: note: in expansion of macro 'DOMAIN_STATE'
#    67 | DOMAIN_STATE(struct mark_stack*, mark_stack)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:70:1: note: in expansion of macro 'DOMAIN_STATE'
#    70 | DOMAIN_STATE(uintnat, marking_done)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:73:1: note: in expansion of macro 'DOMAIN_STATE'
#    73 | DOMAIN_STATE(uintnat, sweeping_done)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:76:1: note: in expansion of macro 'DOMAIN_STATE'
#    76 | DOMAIN_STATE(uintnat, allocated_words)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:80:1: note: in expansion of macro 'DOMAIN_STATE'
#    80 | DOMAIN_STATE(uintnat, allocated_words_direct)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:84:1: note: in expansion of macro 'DOMAIN_STATE'
#    84 | DOMAIN_STATE(uintnat, allocated_words_suspended)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:91:1: note: in expansion of macro 'DOMAIN_STATE'
#    91 | DOMAIN_STATE(uintnat, allocated_words_resumed)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:96:1: note: in expansion of macro 'DOMAIN_STATE'
#    96 | DOMAIN_STATE(intnat, current_ramp_up_allocated_words_diff)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:114:1: note: in expansion of macro 'DOMAIN_STATE'
#   114 | DOMAIN_STATE(uintnat, swept_words)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:116:1: note: in expansion of macro 'DOMAIN_STATE'
#   116 | DOMAIN_STATE(caml_gc_policy, gc_policy)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:119:1: note: in expansion of macro 'DOMAIN_STATE'
#   119 | DOMAIN_STATE(uintnat, major_slice_epoch)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:121:1: note: in expansion of macro 'DOMAIN_STATE'
#   121 | DOMAIN_STATE(struct caml__roots_block*, local_roots)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:123:1: note: in expansion of macro 'DOMAIN_STATE'
#   123 | DOMAIN_STATE(struct caml_ephe_info*, ephe_info)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:125:1: note: in expansion of macro 'DOMAIN_STATE'
#   125 | DOMAIN_STATE(struct caml_final_info*, final_info)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:127:1: note: in expansion of macro 'DOMAIN_STATE'
#   127 | DOMAIN_STATE(intnat, backtrace_pos)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:129:1: note: in expansion of macro 'DOMAIN_STATE'
#   129 | DOMAIN_STATE(intnat, backtrace_active)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:131:1: note: in expansion of macro 'DOMAIN_STATE'
#   131 | DOMAIN_STATE(backtrace_slot*, backtrace_buffer)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:133:1: note: in expansion of macro 'DOMAIN_STATE'
#   133 | DOMAIN_STATE(value, backtrace_last_exn)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:135:1: note: in expansion of macro 'DOMAIN_STATE'
#   135 | DOMAIN_STATE(intnat, compare_unordered)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:137:1: note: in expansion of macro 'DOMAIN_STATE'
#   137 | DOMAIN_STATE(uintnat, oo_next_id_local)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:139:1: note: in expansion of macro 'DOMAIN_STATE'
#   139 | DOMAIN_STATE(uintnat, requested_major_slice)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:140:1: note: in expansion of macro 'DOMAIN_STATE'
#   140 | DOMAIN_STATE(uintnat, requested_global_major_slice)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:142:1: note: in expansion of macro 'DOMAIN_STATE'
#   142 | DOMAIN_STATE(uintnat, requested_minor_gc)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:144:1: note: in expansion of macro 'DOMAIN_STATE'
#   144 | DOMAIN_STATE(atomic_uintnat, requested_external_interrupt)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:146:1: note: in expansion of macro 'DOMAIN_STATE'
#   146 | DOMAIN_STATE(int, parser_trace)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:149:1: note: in expansion of macro 'DOMAIN_STATE'
#   149 | DOMAIN_STATE(asize_t, minor_heap_wsz)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:151:1: note: in expansion of macro 'DOMAIN_STATE'
#   151 | DOMAIN_STATE(struct caml_heap_state*, shared_heap)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:153:1: note: in expansion of macro 'DOMAIN_STATE'
#   153 | DOMAIN_STATE(int, id)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:155:1: note: in expansion of macro 'DOMAIN_STATE'
#   155 | DOMAIN_STATE(int, unique_id)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:157:1: note: in expansion of macro 'DOMAIN_STATE'
#   157 | DOMAIN_STATE(value, dls_root)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:160:1: note: in expansion of macro 'DOMAIN_STATE'
#   160 | DOMAIN_STATE(double, extra_heap_resources)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:161:1: note: in expansion of macro 'DOMAIN_STATE'
#   161 | DOMAIN_STATE(double, extra_heap_resources_minor)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:163:1: note: in expansion of macro 'DOMAIN_STATE'
#   163 | DOMAIN_STATE(uintnat, dependent_size)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:164:1: note: in expansion of macro 'DOMAIN_STATE'
#   164 | DOMAIN_STATE(uintnat, dependent_allocated)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:167:1: note: in expansion of macro 'DOMAIN_STATE'
#   167 | DOMAIN_STATE(intnat, slice_target)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:170:1: note: in expansion of macro 'DOMAIN_STATE'
#   170 | DOMAIN_STATE(intnat, slice_budget)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:173:1: note: in expansion of macro 'DOMAIN_STATE'
#   173 | DOMAIN_STATE(intnat, major_work_done_between_slices)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:175:1: note: in expansion of macro 'DOMAIN_STATE'
#   175 | DOMAIN_STATE(struct caml_extern_state*, extern_state)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:176:1: note: in expansion of macro 'DOMAIN_STATE'
#   176 | DOMAIN_STATE(struct caml_intern_state*, intern_state)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:184:1: note: in expansion of macro 'DOMAIN_STATE'
#   184 | DOMAIN_STATE(uintnat, stat_minor_words)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:185:1: note: in expansion of macro 'DOMAIN_STATE'
#   185 | DOMAIN_STATE(uintnat, stat_promoted_words)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:186:1: note: in expansion of macro 'DOMAIN_STATE'
#   186 | DOMAIN_STATE(uintnat, stat_major_words)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:187:1: note: in expansion of macro 'DOMAIN_STATE'
#   187 | DOMAIN_STATE(intnat, stat_forced_major_collections)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:188:1: note: in expansion of macro 'DOMAIN_STATE'
#   188 | DOMAIN_STATE(uintnat, stat_blocks_marked)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:192:1: note: in expansion of macro 'DOMAIN_STATE'
#   192 | DOMAIN_STATE(int, inside_stw_handler)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:197:1: note: in expansion of macro 'DOMAIN_STATE'
#   197 | DOMAIN_STATE(intnat, trap_sp_off)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:198:1: note: in expansion of macro 'DOMAIN_STATE'
#   198 | DOMAIN_STATE(intnat, trap_barrier_off)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:199:1: note: in expansion of macro 'DOMAIN_STATE'
#   199 | DOMAIN_STATE(int64_t, trap_barrier_block)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:200:1: note: in expansion of macro 'DOMAIN_STATE'
#   200 | DOMAIN_STATE(struct caml_exception_context*, external_raise)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:203:1: note: in expansion of macro 'DOMAIN_STATE'
#   203 | DOMAIN_STATE(struct memprof_domain_s *, memprof)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:204:1: note: in expansion of macro 'DOMAIN_STATE'
#   204 | DOMAIN_STATE(value *, memprof_young_trigger)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:165:22: warning: ISO C99 does not support '_Alignas' [-Wpedantic]
#   165 | #define CAMLalign(n) _Alignas(n)
#       |                      ^~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:35:34: note: in expansion of macro 'CAMLalign'
#    35 | #define DOMAIN_STATE(type, name) CAMLalign(8) type name;
#       |                                  ^~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.tbl:206:1: note: in expansion of macro 'DOMAIN_STATE'
#   206 | DOMAIN_STATE(extra_params_area, extra_params)
#       | ^~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/misc.h:174:26: warning: ISO C99 does not support '_Thread_local' [-Wpedantic]
#   174 | #define CAMLthread_local _Thread_local
#       |                          ^~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:50:14: note: in expansion of macro 'CAMLthread_local'
#    50 |   CAMLextern CAMLthread_local caml_domain_state* caml_state;
#       |              ^~~~~~~~~~~~~~~~
# In file included from /home/opam/.opam/5.4/lib/ocaml/caml/mlvalues.h:71:
# /home/opam/.opam/5.4/lib/ocaml/caml/domain_state.h:62:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    62 | CAMLnoret CAMLextern void caml_bad_caml_state(void);
#       |                           ^~~~~~~~~~~~~~~~~~~
# In file included from zlib_stubs.c:28:
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:91:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    91 | CAMLnoret CAMLextern void caml_raise (value exception);
#       |                           ^~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:92:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    92 | CAMLnoret CAMLextern void caml_raise_constant (value exn_constr);
#       |                           ^~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:93:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    93 | CAMLnoret CAMLextern void caml_raise_with_arg (value exn_constr, value arg);
#       |                           ^~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:94:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    94 | CAMLnoret CAMLextern void caml_raise_with_args (value exn_constr,
#       |                           ^~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:96:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    96 | CAMLnoret CAMLextern void caml_raise_with_string (value exn_constr,
#       |                           ^~~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:98:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    98 | CAMLnoret CAMLextern void caml_failwith (char const *msg);
#       |                           ^~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:99:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#    99 | CAMLnoret CAMLextern void caml_failwith_value (value msg);
#       |                           ^~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:100:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   100 | CAMLnoret CAMLextern void caml_invalid_argument (char const *msg);
#       |                           ^~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:101:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   101 | CAMLnoret CAMLextern void caml_invalid_argument_value (value msg);
#       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:102:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   102 | CAMLnoret CAMLextern void caml_raise_out_of_memory (void);
#       |                           ^~~~~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:103:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   103 | CAMLnoret CAMLextern void caml_raise_stack_overflow (void);
#       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:104:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   104 | CAMLnoret CAMLextern void caml_raise_sys_error (value);
#       |                           ^~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:105:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   105 | CAMLnoret CAMLextern void caml_raise_end_of_file (void);
#       |                           ^~~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:106:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   106 | CAMLnoret CAMLextern void caml_raise_zero_divide (void);
#       |                           ^~~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:107:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   107 | CAMLnoret CAMLextern void caml_raise_not_found (void);
#       |                           ^~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:108:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   108 | CAMLnoret CAMLextern void caml_array_bound_error (void);
#       |                           ^~~~~~~~~~~~~~~~~~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/fail.h:109:27: warning: ISO C99 does not support '_Noreturn' [-Wpedantic]
#   109 | CAMLnoret CAMLextern void caml_raise_sys_blocked_io (void);
#       |                           ^~~~~~~~~~~~~~~~~~~~~~~~~
# zlib_stubs.c: In function 'zlib_finalize':
# zlib_stubs.c:100:7: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
#   100 |   int ret;
#       |       ^~~
# zlib_stubs.c: In function 'zlib_get_header':
# /home/opam/.opam/5.4/lib/ocaml/caml/mlvalues.h:366:24: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
#   366 | #define String_val(x) ((const char *) Bp_val(x))
#       |                       ~^~~~~~~~~~~~~~~~~~~~~~~~~
# zlib_stubs.c:389:12: note: in expansion of macro 'String_val'
#   389 |     memcpy(String_val(tmp), header->extra, len);
#       |            ^~~~~~~~~~
# In file included from zlib_stubs.c:20:
# /usr/include/string.h:43:39: note: expected 'void * restrict' but argument is of type 'const char *'
#    43 | extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
#       |                      ~~~~~~~~~~~~~~~~~^~~~~~
# zlib_stubs.c:397:11: error: implicit declaration of function 'strnlen'; did you mean 'strlen'? [-Wimplicit-function-declaration]
#   397 |     len = strnlen((char *)header->name, header->name_max);
#       |           ^~~~~~~
#       |           strlen
# /home/opam/.opam/5.4/lib/ocaml/caml/mlvalues.h:366:24: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
#   366 | #define String_val(x) ((const char *) Bp_val(x))
#       |                       ~^~~~~~~~~~~~~~~~~~~~~~~~~
# zlib_stubs.c:399:12: note: in expansion of macro 'String_val'
#   399 |     memcpy(String_val(tmp), header->name, len);
#       |            ^~~~~~~~~~
# /usr/include/string.h:43:39: note: expected 'void * restrict' but argument is of type 'const char *'
#    43 | extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
#       |                      ~~~~~~~~~~~~~~~~~^~~~~~
# /home/opam/.opam/5.4/lib/ocaml/caml/mlvalues.h:366:24: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
#   366 | #define String_val(x) ((const char *) Bp_val(x))
#       |                       ~^~~~~~~~~~~~~~~~~~~~~~~~~
# zlib_stubs.c:409:12: note: in expansion of macro 'String_val'
#   409 |     memcpy(String_val(tmp), header->comment, len);
#       |            ^~~~~~~~~~
# /usr/include/string.h:43:39: note: expected 'void * restrict' but argument is of type 'const char *'
#    43 | extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
#       |                      ~~~~~~~~~~~~~~~~~^~~~~~



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build zlib 0.6
+- 
+- The following changes have been performed
| - install conf-pkg-config 4
| - install conf-zlib       1
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/5.4/.opam-switch/backup/state-20260303073237.export"
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall zlib.0.6;
        res=$?;
        test "$res" != 31 && exit "$res";
        export OPAMCLI=2.0;
        build_dir=$(opam var prefix)/.opam-switch/build;
        failed=$(ls "$build_dir");
        partial_fails="";
        for pkg in $failed; do
          if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'zlib.0.6' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-03-03 07:33.17: Job failed: Failed: Build failed
2026-03-03 07:33.17: Log analysis:
2026-03-03 07:33.17: >>> 
[ERROR] The compilation of zlib.0.6 failed at "dune build -p zlib".
 (score = 20)
2026-03-03 07:33.17: >>> 
# zlib_stubs.c:397:11: error: implicit declaration of function 'strnlen'; did you mean 'strlen'? [-Wimplicit-function-declaration]
 (score = 30)
2026-03-03 07:33.17: implicit declaration of function 'strnlen'; did you mean 'strlen'? [-Wimplicit-function-declaration]