qfs 0.6

Error log

The package failed to build. The error log from opam follows.

[NOTE] Package dune is already installed (current version is 1.6.3).
[NOTE] Package ocamlfind is already installed (current version is 1.9.8).
The following actions will be performed:
=== install 12 packages
  - install base-bytes              base
  - install conf-boost              1
  - install cppo                    1.6.8
  - install extlib                  1.8.0
  - install jbuilder                transition (deprecated)
  - install lwt                     3.3.0                    For the PPX, please install package lwt_ppx
                                                             For Lwt_log and Lwt_daemon, please install package lwt_log
  - install ocaml-migrate-parsetree 1.3.1 (deprecated)
  - install ocamlbuild              0.14.3
  - install ppx_derivers            1.2.1
  - install ppx_tools_versioned     5.2.2
  - install qfs                     0.6
  - install result                  1.5

The following system packages will first need to be installed:
    libboost-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" "libboost-dev"
- debconf: delaying package configuration, since apt-utils is not installed
- Selecting previously unselected package libboost1.74-dev:amd64.
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- Preparing to unpack .../libboost1.74-dev_1.74.0+ds1-21_amd64.deb ...
- Unpacking libboost1.74-dev:amd64 (1.74.0+ds1-21) ...
- Selecting previously unselected package libboost-dev:amd64.
- Preparing to unpack .../libboost-dev_1.74.0.3_amd64.deb ...
- Unpacking libboost-dev:amd64 (1.74.0.3) ...
- Setting up libboost1.74-dev:amd64 (1.74.0+ds1-21) ...
- Setting up libboost-dev:amd64 (1.74.0.3) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed base-bytes.base
-> installed conf-boost.1
-> installed jbuilder.transition
-> retrieved cppo.1.6.8  (cached)
-> retrieved extlib.1.8.0  (cached)
-> retrieved lwt.3.3.0  (cached)
-> retrieved ocaml-migrate-parsetree.1.3.1  (cached)
-> retrieved ocamlbuild.0.14.3  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_tools_versioned.5.2.2  (cached)
-> retrieved result.1.5  (cached)
-> installed ppx_derivers.1.2.1
-> installed result.1.5
-> installed cppo.1.6.8
-> retrieved qfs.0.6  (https://github.com/ahrefs/ocaml-qfs/archive/0.6.tar.gz)
-> installed extlib.1.8.0
-> installed ocaml-migrate-parsetree.1.3.1
-> installed ocamlbuild.0.14.3
-> installed ppx_tools_versioned.5.2.2
-> installed lwt.3.3.0
[ERROR] The compilation of qfs.0.6 failed at "ocaml setup.ml -build".

#=== ERROR while compiling qfs.0.6 ============================================#
# context              2.3.0 | linux/x86_64 | ocaml-base-compiler.4.07.1 | file:///src
# path                 ~/.opam/4.07/.opam-switch/build/qfs.0.6
# command              ~/.opam/4.07/bin/ocaml setup.ml -build
# exit-code            1
# env-file             ~/.opam/log/qfs-113-cb9e6a.env
# output-file          ~/.opam/log/qfs-113-cb9e6a.out
### output ###
# ocamlfind ocamlopt unix.cmxa -I /home/opam/.opam/4.07/lib/ocamlbuild /home/opam/.opam/4.07/lib/ocamlbuild/ocamlbuildlib.cmxa -linkpkg myocamlbuild.ml /home/opam/.opam/4.07/lib/ocamlbuild/ocamlbuild.cmx -o myocamlbuild
# /home/opam/.opam/4.07/bin/ocamlfind ocamlc -g -ccopt -x -ccopt c++ -ccopt -Wall -ccopt -Wno-write-strings -package lwt.ppx -package unix -package lwt.unix -package extlib -package bytes -c src/qfs_stubs.c
# + /home/opam/.opam/4.07/bin/ocamlfind ocamlc -g -ccopt -x -ccopt c++ -ccopt -Wall -ccopt -Wno-write-strings -package lwt.ppx -package unix -package lwt.unix -package extlib -package bytes -c src/qfs_stubs.c
# ocamlfind: [WARNING] Package `threads': Linking problems may arise because of the missing -thread or -vmthread switch
# src/qfs_stubs.c:4:10: fatal error: kfs/KfsClient.h: No such file or directory
#     4 | #include <kfs/KfsClient.h>
#       |          ^~~~~~~~~~~~~~~~~
# compilation terminated.
# Command exited with code 2.
# E: Failure("Command ''/home/opam/.opam/4.07/bin/ocamlbuild' src/libqfs_stubs.a src/dllqfs_stubs.so src/qfs.cma src/qfs.cmxa src/qfs.a src/qfs.cmxs src/example.native -use-ocamlfind -tag debug' terminated with error code 10")



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build qfs 0.6
+- 
+- The following changes have been performed
| - install base-bytes              base
| - install conf-boost              1
| - install cppo                    1.6.8
| - install extlib                  1.8.0
| - install jbuilder                transition
| - install lwt                     3.3.0
| - install ocaml-migrate-parsetree 1.3.1
| - install ocamlbuild              0.14.3
| - install ppx_derivers            1.2.1
| - install ppx_tools_versioned     5.2.2
| - install result                  1.5
+- 

<><> ocaml-migrate-parsetree.1.3.1 installed successfully <><><><><><><><><><><>
=> Note: This package is deprecated.

<><> jbuilder.transition installed successfully <><><><><><><><><><><><><><><><>
=> Note: This package is deprecated.
=> Jbuilder has been renamed and the jbuilder package is now a transition package. Use the dune package instead.

<><> qfs.0.6 troubleshooting ><><><><><><><><><><><><><><><><><><><><><><><><><>
=> This package requires QFS development files installed, consult https://quantcast.github.io/qfs/
     and https://github.com/quantcast/qfs/wiki/Developer-Documentation on how to build manually.

     Tentative instructions for Debian : https://gist.githubusercontent.com/ygrek/7bb217d6ab7b25a765b7/raw
# 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/4.07/.opam-switch/backup/state-20250206040408.export"