SIGSEGV in toast
```
./toast -D=_FILE_OFFSET_BITS=64  -np /usr/include/fuse.h > fuse.nim
Traceback (most recent call last)
cligen.nim(797)          toast
cligen.nim(552)          dispatchmain
toast.nim(137)           main
toast.nim(103)           process
ast.nim(135)             printNim
ast.nim(117)             searchAst
SIGSEGV: Illegal storage access. (Attempt to read from nil?)
```

```
Linux platdoos 4.19.0-1-amd64 #1 SMP Debian 4.19.13-1 (2018-12-30) x86_64 GNU/Linux

Distributor ID:	Debian
Description:	Debian GNU/Linux buster/sid
Release:	unstable
Codename:	sid

Nim Compiler Version 0.19.2 [Linux: amd64]
Compiled at 2019-01-17
Copyright (c) 2006-2018 by Andreas Rumpf

git hash: 7beea1642ddf7845a9a0034c7a93ccbe15894c36
active boot switches: -d:release
```