build: pin -std=c11 for instrument-hooks core.c

[not-matthias]

No description provided.

[codspeed-hq]

Merging this PR will improve performance by ×2.6

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 6 improved benchmarks
❌ 2 regressed benchmarks
✅ 217 untouched benchmarks
⏩ 1 skipped benchmark¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Memory	long body	960 B	6,296 B	-84.75%
❌	Memory	wait 1ms	7 B	16 B	-56.25%
⚡	Memory	short body 3	25,960 B	11 B	×2,400
⚡	Memory	one	45.9 KB	14.3 KB	×3.2
⚡	Memory	wait 500ms	64.1 KB	23 KB	×2.8
⚡	WallTime	switch 2	336 ns	300 ns	+12%
⚡	WallTime	short body	2.7 µs	2.4 µs	+11.62%
⚡	WallTime	short body	1.6 µs	1.5 µs	+10.66%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing cod-2953-use-stdc11-for-instrument-hooks-in-integrations (0b9689b) with main (bcd7e64)}

Footnotes

1. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩

[greptile-apps]

Greptile Summary

Pins -std=c11 for the C-language compilation step in the native-addon build, specifically targeting src/native_core/instruments/hooks/dist/core.c — the auto-generated Zig-output file from instrument-hooks.

• Adds cflags_c: [\"-std=c11\"] to pin the C standard when compiling core.c, using the correct C-only flag key so it does not affect C++ compilation units.
• The auto-generated core.c from instrument-hooks relies on C11 semantics, making this a necessary correctness fix.

Confidence Score: 5/5

Safe to merge — the change is a single, well-scoped compiler flag addition with no logic or API changes.

The fix correctly uses cflags_c (C-only) rather than cflags (all files), so it won't bleed into the C++ compilation units. The auto-generated core.c from instrument-hooks is Zig-output code that requires C11, making this a necessary correctness fix. On Windows, node-gyp routes to MSVC which ignores cflags_c entirely, so there is no cross-platform breakage.

No files require special attention.

Important Files Changed

Filename	Overview
packages/core/binding.gyp	Adds cflags_c: ["-std=c11"] to pin the C standard when compiling core.c. Correctly uses cflags_c (C-only) rather than cflags (C+C++) so the flag doesn't conflict with C++ compilation of the other sources.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["binding.gyp (node-gyp config)"] --> B{Source file type}
    B -->|".cc / .cpp"| C["cflags_cc applied\n(-Wno-maybe-uninitialized, etc.)"]
    B -->|".c"| D["cflags_c applied\n(-std=c11) NEW"]
    B -->|"all files"| E["cflags applied\n(-g, -Wno-format, etc.)"]
    D --> F["core.c\n(auto-generated from instrument-hooks/Zig)"]
    C --> G["linux_perf.cc\nhooks_wrapper.cc\nnative_core.cc"]

Loading

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flowchart TD
    A["binding.gyp (node-gyp config)"] --> B{Source file type}
    B -->|".cc / .cpp"| C["cflags_cc applied\n(-Wno-maybe-uninitialized, etc.)"]
    B -->|".c"| D["cflags_c applied\n(-std=c11) NEW"]
    B -->|"all files"| E["cflags applied\n(-g, -Wno-format, etc.)"]
    D --> F["core.c\n(auto-generated from instrument-hooks/Zig)"]
    C --> G["linux_perf.cc\nhooks_wrapper.cc\nnative_core.cc"]

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