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lightningd: fix clang 19 compile error.#7829

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rustyrussell merged 1 commit intoElementsProject:masterfrom
rustyrussell:clang-subd-error
Nov 17, 2024
Merged

lightningd: fix clang 19 compile error.#7829
rustyrussell merged 1 commit intoElementsProject:masterfrom
rustyrussell:clang-subd-error

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Ubuntu clang version 19.1.0 (++20240901083933+6d7e428df611-1~exp1~20240901084058.28)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm-19/bin

./configure CC=clang-19
make -j17
<snip>
cc lightningd/offer.c
cc lightningd/signmessage.c
lightningd/subd.c:945:16: error: variable length array folded to constant array as an extension [-Werror,-Wgnu-folding-constant]
  945 |         char permfail[strlen("PERMFAIL")];
      |                       ^~~~~~~~~~~~~~~~~~
cc wallet/db.c

Changelog-Fixed: build: fix overzealous warning from clang 19.

Important

24.11 FREEZE NOVEMBER 7TH: Non-bugfix PRs not ready by this date will wait for 25.02.

Fixes: #7634

```
Ubuntu clang version 19.1.0 (++20240901083933+6d7e428df611-1~exp1~20240901084058.28)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm-19/bin

./configure CC=clang-19
make -j17
<snip>
cc lightningd/offer.c
cc lightningd/signmessage.c
lightningd/subd.c:945:16: error: variable length array folded to constant array as an extension [-Werror,-Wgnu-folding-constant]
  945 |         char permfail[strlen("PERMFAIL")];
      |                       ^~~~~~~~~~~~~~~~~~
cc wallet/db.c
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: build: fix overzealous warning from clang 19.
@rustyrussell rustyrussell added this to the v24.11 milestone Nov 17, 2024
@rustyrussell rustyrussell merged commit 8035791 into ElementsProject:master Nov 17, 2024
dergoegge pushed a commit to dergoegge/fuzzor that referenced this pull request Jan 14, 2025
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build: compilation failure with Clang 19

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