316730cdc7a330cddf288b4e5c1de5daa64e19f4
the resolution of Austin Group issue #162 adds endian.h as a standard header for future versions of the standard, making it no longer acceptable for some of the functionality to be hidden behind _BSD_SOURCE or _GNU_SOURCE. the definitions of the [lb]etoh{16,32,64} function-like macros are kept conditional since they are alternate names which the standard did not adopt.
musl libc
musl, pronounced like the word "mussel", is an MIT-licensed
implementation of the standard C library targetting the Linux syscall
API, suitable for use in a wide range of deployment environments. musl
offers efficient static and dynamic linking support, lightweight code
and low runtime overhead, strong fail-safe guarantees under correct
usage, and correctness in the sense of standards conformance and
safety. musl is built on the principle that these goals are best
achieved through simple code that is easy to understand and maintain.
The 1.1 release series for musl features coverage for all interfaces
defined in ISO C99 and POSIX 2008 base, along with a number of
non-standardized interfaces for compatibility with Linux, BSD, and
glibc functionality.
For basic installation instructions, see the included INSTALL file.
Information on full musl-targeted compiler toolchains, system
bootstrapping, and Linux distributions built on musl can be found on
the project website:
http://www.musl-libc.org/