ocaml 5: restrict posixat
Consider the following failure in a posixat revdep:
#=== ERROR while compiling pyml_bindgen.0.4.1 =================================#
# context 2.2.0~alpha~dev | linux/x86_64 | ocaml-base-compiler.5.0.0 | file:///home/opam/opam-repository
# path ~/.opam/5.0/.opam-switch/build/pyml_bindgen.0.4.1
# command ~/.opam/opam-init/hooks/sandbox.sh build dune build -p pyml_bindgen -j 127 @install @runtest
# exit-code 1
# env-file ~/.opam/log/pyml_bindgen-7-e0f471.env
# output-file ~/.opam/log/pyml_bindgen-7-e0f471.out
### output ###
# File "test/dune", line 1, characters 0-211:
# 1 | (library
# 2 | (name test_lib)
# 3 | (libraries base base_quickcheck lib shexp.process stdio)
# ....
# 10 | ppx_string
# 11 | ppx_inline_test
# 12 | ppx_expect)))
# ...
# /usr/bin/ld: /home/opam/.opam/5.0/lib/posixat/libposixat_stubs.a(posixat_stubs.o): in function `alloc_stats':
# /home/opam/.opam/5.0/.opam-switch/build/posixat.v0.15.0/_build/default/src/posixat_stubs.c:147: undefined reference to `cst_to_constr'
# collect2: error: ld returned 1 exit status
# File "caml_startup", line 1:
# Error: Error during linking (exit code 1)
The code for posixat refers to a function `cst_to_constr` in the unix
library. This function has been renamed in 5.0. But since it is declared
as an `extern` in posixat itself, the error is not found until link
time:
https://github.com/janestreet/posixat/blob/v0.15.0/src/posixat_stubs.c#L120
anil.recoil.org