Topic: glibc

• musl versus glibc on Alpine: why some prebuilt binaries, Python wheels and DNS behaviour differ

  Alpine's musl libc is not binary-compatible with glibc, has a different (parallel, non-search-falling-back) DNS resolver, defaults to the C.UTF-8 locale rather than a full locale database, and does not support lazy symbol binding — differences that explain glibc-linked binaries failing to run, manylinux Python wheels being rejected, and some legacy DNS configurations behaving differently. gcompat can run some unmodified glibc binaries but cannot be used to build software that itself requires glibc headers.

  article · en · reviewed · knowledge as of 2026-09-24

Machine-readable: JSON