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OCaml 5.5.0~beta1 fails at configure step: error: --with-relative-libdir and --libdir cannot both be specified

Status: Open.

#14760 In ocaml/ocaml;

· edwintorok opened on Apr 20, 2026

[Win32] Unix.select raises "select.c: original file handle not found"

bug

windows

Status: Open.

#14758 In ocaml/ocaml;

· z-rui opened on Apr 19, 2026

Expansion loop due to constraints (original report in #10382)

Status: Open.

#14753 In ocaml/ocaml;

· smuenzel opened on Apr 18, 2026

File tools/cvt_emit.mll, rules command and string are not exhaustive

Status: Open.

#14750 In ocaml/ocaml;

· MisterDA opened on Apr 16, 2026

Typechecker loops when checking inclusion of two isomorphic module types

bug

recursive-modules

Status: Open.

#14743 In ocaml/ocaml;

· Ekdohibs opened on Apr 14, 2026

Dynlink test fails intermittently on MSCV64

flaky-ci-failure

windows

Status: Open.

#14708 In ocaml/ocaml;

· OlivierNicole opened on Apr 3, 2026

CI test test_dropped_events is flaky

flaky-ci-failure

Status: Open.

#14687 In ocaml/ocaml;

· gasche opened on Mar 26, 2026

Principal mode treats all types of things in modules as principal

typing

Status: Open.

#14686 In ocaml/ocaml;

· lpw25 opened on Mar 26, 2026

Adding new extension points entries in the AST

devel-discussion

feature-wish

Status: Open.

#14668 In ocaml/ocaml;

· NathanReb opened on Mar 23, 2026

feature request: OCAMLRUNPARAM=s=2MB

feature-wish

good first issue

newcomer-job

Status: Open.

#14658 In ocaml/ocaml;

· gasche opened on Mar 18, 2026

Mutually-recursive functions and slowdowns in Coccinelle

PerformancePR or issues affecting runtime performance of the compiled programsPR or issues affecting runtime performance of the compiled programs

Status: Open.

#14656 In ocaml/ocaml;

· vgambier opened on Mar 18, 2026

Overflow in Bigarray.reshape

Status: Open.

#14655 In ocaml/ocaml;

· last-genius opened on Mar 18, 2026