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Kim Morrison e96b0ff39c fix: use response files on all platforms to avoid ARG_MAX (#12540 )

This PR extends Lake's use of response files (`@file`) from Windows-only
to all platforms, avoiding `ARG_MAX` limits when invoking `clang`/`ar`
with many object files.

Lake already uses response files on Windows to avoid exceeding CLI
length limits. On macOS and Linux, linking Mathlib's ~15,000 object
files into a shared library can exceed macOS's `ARG_MAX` (262,144
bytes). Both `clang` and `gcc` support `@file` response files on all
platforms, so this is safe to enable unconditionally.

Reported as a macOS issue at
https://leanprover.zulipchat.com/#narrow/channel/270676-lean4/topic/The.20clang.20command.20line.20with.20all.20~15.2C000.20Mathlib.20.2Ec.2Eo.2Eexport/near/574369912:
the Mathlib cache ships Linux `.so` shared libs but not macOS `.dylib`
files, so `precompileModules` on macOS triggers a full re-link that
exceeds `ARG_MAX`.

🤖 Prepared with Claude Code

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-17 04:14:37 +00:00

chore: improve how test suite interacts with stages (#12913 )

2026-03-16 15:20:03 +00:00

feat: add lake-ci label to enable full Lake test suite (#12836 )

2026-03-10 03:23:35 +00:00

chore: replace workspace file with .vscode/ settings (#12770 )

2026-03-04 01:10:04 +00:00

chore: improve how test suite interacts with stages (#12913 )

2026-03-16 15:20:03 +00:00

chore(CMakeLists.txt): move Lean logo to make sure we can test leanemacs without installing Lean

2015-01-31 17:38:49 -08:00

releases_drafts

chore: remove stale release draft notes (#12518 )

2026-02-17 19:56:23 +00:00

fix: use null-safe while-read loop for subverso manifest sync (#12928 )

2026-03-16 08:17:32 +00:00

fix: use response files on all platforms to avoid ARG_MAX (#12540 )

2026-03-17 04:14:37 +00:00

chore: update stage0

2026-03-16 13:15:14 +00:00

feat: lake: fixedToolchain package configuration (#12935 )

2026-03-17 02:37:55 +00:00

.gitattributes

chore: migrate more tests to new test suite (#12809 )

2026-03-06 16:52:01 +00:00

.gitignore

chore: replace workspace file with .vscode/ settings (#12770 )

2026-03-04 01:10:04 +00:00

.gitpod.Dockerfile

chore: add gitpod configuration (#6382 )

2024-12-15 21:38:13 +00:00

.gitpod.yml

chore: add gitpod configuration (#6382 )

2024-12-15 21:38:13 +00:00

.ignore

chore: ignore stage0/ (for rg etc.)

2022-03-18 15:28:20 +01:00

CMakeLists.txt

chore: update leantar to v0.1.19 (#12938 )

2026-03-17 03:55:21 +00:00

CMakePresets.json

chore: fix ci for new test suite (#12704 )

2026-02-27 23:25:37 +00:00

CODEOWNERS

chore: make @hargoniX code owner of the compiler (#10732 )

2025-10-10 04:43:38 +00:00

CONTRIBUTING.md

chore: migrate pkg tests (#12889 )

2026-03-11 18:55:46 +00:00

flake.lock

chore: update to c++20 (#12117 )

2026-02-11 01:17:40 +00:00

flake.nix

chore: update to c++20 (#12117 )

2026-02-11 01:17:40 +00:00

lean-toolchain

chore: relative lean-toolchains (#12652 )

2026-02-25 10:23:35 +00:00

LICENSE

chore: remove LICENSE header that confused GitHub

2021-11-18 09:42:35 +01:00

LICENSES

feat: bundle leantar with Lean (#12822 )

2026-03-09 20:10:59 +00:00

README.md

doc: update URLs that are currently pointing to redirects (#10397 )

2025-09-17 15:50:07 +00:00

RELEASES.md

chore: updates to release_checklist.md (#7817 )

2025-04-04 03:45:36 +00:00

README.md

This is the repository for Lean 4.

About

Installation

See Install Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.

Languages

Lean 94.3%

C++ 4.1%

Python 0.6%

Shell 0.4%

CMake 0.3%