Compatibility

Compatibility of the interfaces provided by musl with existing standards and software packages.

Standards compatibility tables

POSIX 2008 API coverage (obsolete STREAMS and posix_trace APIs are not included)
C99 API coverage
C11 API coverage (optional annex K is not included)

Compatibility with other implementations

[Functional differences from glibc]
Comparison with other Linux libc implementations.

Software compatibility, patches and build instructions

pkgsrc based software compatibility table:
- ~~Pkgsrc results~~ outdated.
- pkgsrc results are archived at http://musl.codu.org.
- The necessary patches are at musl-pkgsrc-patches (hg) or musl-pkgsrc-patches (git).
Build instructions and patches for various software packages:
- sabotage recipes, patches
- Mere Linux packages
- Dragora recipes, patches
- Alpine ports
- Gentoo overlay with musl support
- See the packaging work in various other [distributions][Projects using musl#Linux distributions using musl].