zig: fix cache folder handling (#287491)

pkgs/development/compilers/zig/generic.nix

@@ -46,7 +46,9 @@ stdenv.mkDerivation (finalAttrs: {
  "/System/Library/CoreServices/SystemVersion.plist"
  ];
 
- env.ZIG_GLOBAL_CACHE_DIR = "$TMPDIR/zig-cache";
+ preBuild = ''
+ export ZIG_GLOBAL_CACHE_DIR="$TMPDIR/zig-cache";
+ '';
 
  # Zig's build looks at /usr/bin/env to find dynamic linking info. This doesn't
  # work in Nix's sandbox. Use env from our coreutils instead.
@@ -55,14 +57,14 @@ stdenv.mkDerivation (finalAttrs: {
  --replace "/usr/bin/env" "${coreutils}/bin/env"
  '' else ''
  substituteInPlace lib/std/zig/system/NativeTargetInfo.zig \
- --replace "/usr/bin/env" "${coreutils}/bin/env"
+ --replace-fail "/usr/bin/env" "${coreutils}/bin/env"
  '';
 
  doInstallCheck = true;
  installCheckPhase = ''
  runHook preInstallCheck
 
- $out/bin/zig test --cache-dir "$TMPDIR/zig-test-cache" -I $src/test $src/test/behavior.zig
+ $out/bin/zig test -I $src/test $src/test/behavior.zig
 
  runHook postInstallCheck
  '';