Merge pull request #268894 from eth3lbert/ast-grep-clang16

ast-grep: fix build with clang 12+

pkgs/by-name/as/ast-grep/package.nix

···
 
   cargoHash = "sha256-OFNqBkPAKaSqDQUWisupj6FlDbm3kw0xq5nbvj04H5U=";
 
+  # Work around https://github.com/NixOS/nixpkgs/issues/166205.
+  env = lib.optionalAttrs stdenv.cc.isClang {
+    NIX_LDFLAGS = "-l${stdenv.cc.libcxx.cxxabi.libName}";
+  };
+
   # error: linker `aarch64-linux-gnu-gcc` not found
   postPatch = ''
     rm .cargo/config.toml