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  • Pkgsrc results outdated.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.