D-Programming-Language/dmd — pull request #2950 by ibuclaw (2013-12-11 16:48:36+00:00)
Title: Use __linux__ to identify Linux-based systems.

As per http://sourceforge.net/p/predef/wiki/OperatingSystems/

```
Type Macro Description
Identification __linux__
Identification linux Obsolete (not POSIX compliant)
```

Replace ``linux`` with POSIX-compliant ``__linux__``.