Typecheck fails

[lpsinger]

Running tsc on a project that imports addresscompiler fails with the following error messages:

$ npm run typecheck

> typecheck
> tsc

node_modules/addresscompiler/src/addresscompiler.d.ts:7:4 - error TS1036: Statements are not allowed in ambient contexts.

7   };
     ~

node_modules/addresscompiler/src/addresscompiler.d.ts:14:3 - error TS1038: A 'declare' modifier cannot be used in an already ambient context.

14   declare const AddressCompiler: {
     ~~~~~~~

node_modules/addresscompiler/src/addresscompiler.d.ts:18:3 - error TS2309: An export assignment cannot be used in a module with other exported elements.

18   export = AddressCompiler;
     ~~~~~~~~~~~~~~~~~~~~~~~~~


Found 3 errors in the same file, starting at: node_modules/addresscompiler/src/addresscompiler.d.ts:7

Minimal reproducing example here: https://github.com/lpsinger/addresscompiler-bug-report