> 2015-05-30 Eric Botcazou
>
> * adaint.c: Test for __linux__ instead of linux and __sun__ instead
> of sun. Add missing leading underscore to AIX. Remove #elif 0.
> * adaint.h: Likewise.
> * cio.c: Likewise.
> * cstreams.c: Likewise.
> * env.c: Likewise.
>
This changes 4 preprocessor symbols tested in the C files (linux, sun, i386
and sparc) to their underscored variants. Both forms are defined by the
compiler in normal mode, but the former is not in strictly conformant mode and
this is problematic on Solaris now. The other preprocessor symbols
