enabling runes globally doesn't work

[proof-llc]

Describe the bug

In svelte.config.js we want to be able to enable runes globally. At present it doesn't work.

Reproduction

1. pnpm create svelte@latest my-app2

• Skeleton project
• Typescript
• ESLint
• Prettier
• Svelte 5 beta

2. cd my-app2
3. pnpm install
4. set runes: true in svelte.config.js
5. pnpm run dev -- --open

Logs

CompileError: Cannot use `export let` in runes mode — use $props instead
    at error (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/errors.js:568:8)
    at ExportNamedDeclaration (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/2-analyze/validation.js:628:3)
    at go (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/visitors.js:49:5)
    at visitor (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/visitors.js:64:4)
    at go (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/visitors.js:49:5)
    at visitor (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/visitors.js:64:4)
    at Object.next (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/zimmerframe/src/walk.js:106:21)
    at go (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/visitors.js:45:29)
    at next (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/visitors.js:55:7)
    at _ (file:///private/tmp/my-app2/node_modules/.pnpm/[email protected]/node_modules/svelte/src/compiler/phases/scope.js:666:4)

System Info

System:
    OS: macOS 14.1
    CPU: [REDACTED]
    Memory: [REDACTED]
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 21.1.0 - /usr/local/bin/node
    Yarn: 1.22.18 - /opt/homebrew/bin/yarn
    npm: 9.6.7 - /opt/homebrew/bin/npm
    pnpm: 8.9.2 - /usr/local/bin/pnpm
    bun: 1.0.2 - ~/.bun/bin/bun
  Browsers:
    Chrome: 119.0.6045.123
    Chrome Canary: 120.0.6089.3
    Safari: 17.1
    Safari Technology Preview: 17.4
  npmPackages:
    svelte: ^5.0.0-next.1 => 5.0.0-next.2

Severity

blocking an upgrade

[proof-llc]

updated to 5.0.0-next.2 - same error

[brunnerh]

Looks like a duplicate of sveltejs/kit/issues/11022.

[Conduitry]

Yup. Duplicate of sveltejs/kit#11022. Will be resolved by Kit adjusting its generated code according to whether it detects you're using Svelte 5.