fix: build on macos

[not-matthias]

Fixes #130

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #131 will improve performances by 13.82%

_{Comparing cod-1442-codspeed-divan-compat-macos-linking-failure-on-v4 (9ace864) with main (22e8366)}

Summary

⚡ 5 improvements
✅ 181 untouched

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	fib_10	859.7 ns	830.6 ns	+3.51%
⚡	recursive[0]	240.3 ns	211.1 ns	+13.82%
⚡	recursive[5]	320.3 ns	291.1 ns	+10.02%
⚡	instant	363.6 ns	334.4 ns	+8.72%
⚡	system_time	363.6 ns	334.4 ns	+8.72%

[codspeed-hq]

CodSpeed WallTime Performance Report

Merging #131 will degrade performances by 86.11%

_{Comparing cod-1442-codspeed-divan-compat-macos-linking-failure-on-v4 (9ace864) with main (22e8366)}

Summary

⚡ 20 improvements
❌ 23 regressions
✅ 125 untouched

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	build_vec	180 ns	215 ns	-16.28%
❌	Recursive	46.1 µs	50.6 µs	-8.97%
❌	Recursive[20]	45.9 µs	50.6 µs	-9.39%
❌	Recursive[21]	75 µs	82.2 µs	-8.76%
❌	large_drop	183.4 µs	802.7 µs	-77.15%
❌	large_setup	14 ns	20 ns	-30%
❌	small_setup	1 ns	2 ns	-50%
⚡	iter_with_setup	48 ns	36 ns	+33.33%
❌	iter_batched_large_input	7 ns	44 ns	-84.09%
⚡	iter_batched_per_iteration	48 ns	36 ns	+33.33%
❌	iter_batched_ref_large_input	5 ns	36 ns	-86.11%
⚡	iter_batched_ref_per_iteration	44 ns	36 ns	+22.22%
⚡	iter_with_setup	46 ns	36 ns	+27.78%
⚡	from_elem[16384]	1,047 ns	994 ns	+5.33%
⚡	from_elem[4096]	354 ns	338 ns	+4.73%
⚡	from_elem[8192]	579 ns	506 ns	+14.43%
❌	recursive_memoized[BTreeMap<u64, u64>, 10]	579 ns	602 ns	-3.82%
❌	recursive_memoized[BTreeMap<u64, u64>, 20]	2 µs	2.3 µs	-14%
❌	generate_combinations[5]	944 ns	1,139 ns	-17.12%
⚡	generate_combinations[6]	2 µs	1.9 µs	+4.46%
...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

[Copilot]

Pull Request Overview

This PR fixes the build system to properly support macOS by restricting the instrument-hooks functionality to Linux only and updating the CI configuration to test across multiple platforms.

• Replaced #[cfg(unix)] with #[cfg(target_os = "linux")] to specifically target Linux instead of all Unix-like systems
• Added early return in build script for non-Linux platforms to skip compilation of instrument-hooks C library
• Consolidated CI lint jobs into a matrix strategy that tests on Ubuntu, Windows, and macOS

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
crates/codspeed/src/instrument_hooks/mod.rs	Changed conditional compilation from Unix to Linux-specific targeting
crates/codspeed/instrument-hooks	Updated submodule commit reference
crates/codspeed/build.rs	Added early return for non-Linux platforms to skip C library compilation
.github/workflows/ci.yml	Consolidated separate lint jobs into matrix strategy for cross-platform testing

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[Copilot]

Pull Request Overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

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