sasquatch: drop blanket -Werror (fix gcc-11 build) (#139350)

Noticed build failure on gcc-11:

$ nix-build -E 'with import ./.{}; sasquatch.override { stdenv = gcc11Stdenv; }'
unsquashfs.c:1908:5:
error: this 'if' clause does not guard... [-Werror=misleading-indentation]
1908 | if(swap)
| ^~

Let's defer warning squashing and code fixes to upstream.

authored by

Sergei Trofimovich and committed by
GitHub
8d77e899 92ad52c0

+3
+3
pkgs/tools/filesystems/sasquatch/default.nix
··· 43 43 patchFlags = [ "-p0" ]; 44 44 45 45 postPatch = '' 46 + # Drop blanket -Werror to avoid build failure on fresh toolchains 47 + # like gcc-11. 48 + substituteInPlace squashfs-tools/Makefile --replace ' -Werror' ' ' 46 49 cd squashfs-tools 47 50 ''; 48 51