Update the centos base image from centos 6 to centos 7. The latter is
the minimum version supported by libuv 1.45. The resulting binaries
require GLIBC 2.17.
Since commit 37e015d4a6 (Utilities/Sphinx: Refactor Sphinx reference
recording, 2023-03-08, v3.27.0-rc1~342^2~1) our documentation requires
Python 3.7 or higher. This is not available in the base images we use
to build Linux release binaries. These days our release packaging CI
pipeline builds the documentation in a separate job anyway.
We previously defined `_POSIX_C_SOURCE` and friends while building
binary packages in order to minimize the version of glibc needed at
runtime. The definitions were added by commit facc240a45
(Utilities/Release: Add docker specs to build and test Linux binaries,
2019-08-23, v3.16.0-rc1~184^2~2), but came from older packaging scripts
that were removed by commit 689fdbfc61 (Utilities/Release: Drop linux64
script in favor of docker build, 2019-08-27, v3.16.0-rc1~184^2). Those
older scripts were meant for use in a hand-maintained environment. Now
that we use base images of old CentOS versions to establish the build
environment, our builds are already limited to older glibc versions
(glibc 2.12 from centos6 on x86_64, and 2.17 from centos7 on aarch64).
Our old system API definitions no longer affect the glibc version
required by the binaries. Drop them to avoid potential conflicts with
system API definitions added by changes like commit f034b0f663 (CMake
compilation: do not use compiler extensions, 2020-03-14, v3.18.0-rc1~494^2)
and commit c7c3e39e4f (Utilities: Activate POSIX APIs even without
compiler extensions, 2022-06-02).
Use `linux_release` in names associated with building or testing
release-style binaries. Add a `.linux_package` helper to adjust
the release binary build behavior for package-specific jobs.
Base them on the existing `x86_64` specs. Update the centos
base image from centos 6 to centos 7 to get aarch64 support.
The resulting binaries require GLIBC 2.17.
Fixes: #17923
The spec added by commit facc240a45 (Utilities/Release: Add docker specs
to build and test Linux binaries, 2019-08-23) generates only the TGZ
package, but the old `Utilities/Release/linux64_release.cmake` script
also generated a STGZ package.
