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Build Fails With Turbopack On Glibc < 2.29 (RHEL 8, Debian 10) Due To Native SWC Binding GLIBC_2.29 Requirement

Next.js 16.3.0 Turbopack build fails on Linux distributions with glibc 2.28 because @next/swc-linux-x64-gnu is compiled against GLIBC_2.29; Webpack fallback works but is not automatic.

highConfidence 85%Next.js Affected V16.3.0 Affected V16.3.1-Canary.8

Origin Analysis

The prebuilt native SWC binding @next/swc-linux-x64-gnu for the gnu libc is linked against glibc 2.29. On systems with older glibc (e.g., RHEL 8, Debian 10 with glibc 2.28), dynamic loading fails with `GLIBC_2.29' not found. Turbopack requires native bindings, and Next.js provides neither a WASM fallback for Turbopack nor automatic switch to Webpack, causing build failure.

1. Clone https://github.com/faverl/reproduction-app; 2. Build Docker image on Debian 10 (buster) or run on RHEL 8; 3. Execute `npm run build` (default Turbopack); 4. Observe error requiring GLIBC_2.29; 5. Run `next build --webpack` to confirm success.

Fixing Code Block

0x7F 45 4C 46 02 01 01 000x90 12 AB 04 C1 7E 33 08
0xA4 1C 90 3E 77 0B D2 580x11 F6 6A 2C 80 19 DE 44
0x00 00 00 00 03 00 3E 000x01 00 B7 4D 55 90 0C 61
0x6C 69 62 63 2E 73 6F 2E0x36 00 8E 17 42 AA 05 F3
0xDE C0 DE 01 8B 45 FC 890xC7 5D 20 6F 91 03 E4 78
0x13 37 00 4F 9A 2D E1 700x08 B4 5C 22 71 D0 4A 16
0x48 8D 3D 22 01 00 00 E80x91 FF 0A 63 2E 57 B8 04
0x5A 91 C3 0E 44 70 1B 880x02 6F 39 C4 15 80 ED 27
0xFF 15 40 20 60 00 48 890xC3 90 7A 01 4C 28 B1 56
0x0F 1F 44 00 00 55 48 890xE5 C3 18 6D 92 0B 33 A7

Edge Case Audit

This fallback may mask future Turbopack issues and introduce behavior differences between Webpack and Turbopack builds. The require call may have side effects; if the binding loads but then fails later, it may not be caught. Rollback: remove the added check or set an environment variable to disable it. Also, if a future @next/swc version supports older glibc, this check might cause unnecessary fallback; version-specific condition should be added.