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

[not-matthias]

No description provided.

[codspeed-hq]

Merging this PR will not alter performance

⚠️ 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

⚡ 1 improved benchmark
❌ 7 regressed benchmarks
✅ 230 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	WallTime	switch 1	144 ns	168 ns	-14.29%
❌	WallTime	short body	2.3 µs	2.7 µs	-13.57%
❌	WallTime	switch 2	156 ns	180 ns	-13.33%
❌	WallTime	short body	2.5 µs	2.8 µs	-12.29%
❌	WallTime	short body	2.4 µs	2.7 µs	-11.79%
❌	WallTime	test sync baz 10	192 ns	216 ns	-11.11%
❌	WallTime	short body	2.3 µs	2.6 µs	-10.6%
⚡	Memory	wait 500ms	71 KB	64.1 KB	+10.79%

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 (1999ec9) with main (56fa9fc)}

[greptile-apps]

Greptile Summary

This PR adds -std=c11 to the cflags_c key in binding.gyp to explicitly pin the C language standard when compiling instrument-hooks' core.c. Using cflags_c (rather than cflags) correctly scopes the flag to C-only translation units, avoiding any conflict with the C++ source files in the same target.

• Adds "cflags_c": ["-std=c11"] to the native_core target in binding.gyp so that core.c (the only C file in sources) is compiled under an explicit C11 dialect on Linux.
• The change does not touch xcode_settings.OTHER_CFLAGS, which is the macOS-side equivalent; modern Apple Clang defaults to C17 or newer so macOS builds should be unaffected.

Confidence Score: 5/5

Minimal one-liner change that correctly pins the C11 standard only for C source files; no logic or interface changes.

The change is a single targeted build-flag addition to cflags_c, which is the right key for C-only compilation flags in node-gyp. It does not touch any runtime logic, exported APIs, or test code, and the scoping prevents accidental side-effects on the C++ translation units in the same target.

No files require special attention.

Important Files Changed

Filename	Overview
packages/core/binding.gyp	Adds cflags_c: ["-std=c11"] to pin the C standard for core.c; placement and scoping are correct.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[binding.gyp: native_core target] --> B{Source file type}
    B -->|.cc files| C[cflags_cc - C++ flags]
    B -->|.c file - core.c| D[cflags_c - C-only flags - std=c11 NEW]
    B -->|Both .c and .cc| E[cflags - Shared flags]
    D --> F[core.c compiled with C11 standard]
    C --> G[C++ files compiled without C standard flag]

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flowchart TD
    A[binding.gyp: native_core target] --> B{Source file type}
    B -->|.cc files| C[cflags_cc - C++ flags]
    B -->|.c file - core.c| D[cflags_c - C-only flags - std=c11 NEW]
    B -->|Both .c and .cc| E[cflags - Shared flags]
    D --> F[core.c compiled with C11 standard]
    C --> G[C++ files compiled without C standard flag]

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