@node a.out.h
@section @file{a.out.h}

Describes the structure of executables (and object files?) in the old
@code{a.out} format.

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This header file is missing on some platforms:
macOS 11.1, Solaris 11.4, mingw, MSVC 14, Android 9.0.
@item
This header file is useless because most executables and object files are
in ELF format on some platforms:
glibc 2.3.6, FreeBSD 13.0, NetBSD 9.0, OpenBSD 6.7.
@end itemize