⚠️ Known Issue: 2.42+ will not build

Due to @sgerrand's docker-glibc-builder being out of date, 2.42 and above will not build. I'm not interested in fixing this right now (would require forking and updating the container) but I might do it in the future. If you need the latest glibc, fix that container and point to the new container in build.sh.

alpine-pkg-glibc

This is the GNU C Library as an Alpine Linux package, so that you may run binaries linked against glibc. This package uses as a source a custom-built glibc binary, built by @sgerrand's docker-glibc-builder.

This is a fork of his alpine-pkg-glibc, but updated to the latest glibc version and with new CI. I did this as @sgerrand has neglected to update the package in his repository for quite a long time now.

Note: I primarily started this project to learn how to use OneDev CI, and as such I am not particularly interested in adding new features to or fixing the Docker build image, or making changes to this repo.

If you have any features or fixes, open an issue or send a PR on OneDev. You may also open an issue via email.

Download

Binary tarball releases are built and made available via OneDev CI build artifacts.

Build

To build your own Alpine package, you first need a built binary tarball. You
can get one from the CI artifacts as mentioned above, or by building it:

# install prerequisites
sudo apk add docker abuild

git clone https://git.sev.monster/sev/alpine-pkg-glibc
cd alpine-pkg-glibc

# first arg is desired glibc version, second is the pkgrel
./build.sh 2.41 0 #builds glibc-bin-2.41-r0.tar.gz
# alternatively, put a pre-built glibc-bin-*.tar.gz in this directory

# use your favorite editor here to ensure the $pkgver and $pkgrel match the
# tarball version; if you don't do this, package creation will fail
vim APKBUILD

# recalculate checksums for the tarball
abuild checksum

# build apk
abuild -r

Install

The tarballs are not intended to be installed directly, but in theory you could manually extract them to /usr on an Alpine/musl libc system:

tar -C /usr -xzf glibc-bin-*.tar.gz

Pre-built Alpine packages are available in my Alpine repo. Installation instructions are available in the repo README.

If you are using tools like localedef you will need the glibc-bin and glibc-i18n packages in addition to the glibc package.

gcompat/libc6-compat?

Previously, if you wanted to also install gcompat (previously libc6-compat), which was also a dependency of glibc-bin, you had to:

1. Install gcompat first
2. Remove its ld-linux-x86-64.so loader from /lib
3. Install glibc/glibc-bin with --force-overwrite

This was a cumbersome and error-prone process. To avoid that issue, this package will overwrite gcompat if it is installed, by setting replaces=gcompat.

Locales

You will need to generate your locale if you would like to use a specific one for your glibc application. You can do this by installing the glibc-i18n package and generating a locale using the localedef binary. An example for en_US.UTF-8 would be:

apk add glibc-bin glibc-i18n
/usr/glibc-compat/bin/localedef -i en_US -f UTF-8 en_US.UTF-8