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12.1 a.out.h

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

Gnulib module: —

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

• This header file is missing on some platforms: macOS 11.1, Solaris 11.4, mingw, MSVC 14, Android 9.0.
• This header file is useless because most executables and object files are in ELF format on some platforms: glibc 2.3.6, FreeBSD 14.0, NetBSD 9.0, OpenBSD 6.7.