5:42 p.m.
* Radka Janekova <radka.janek(a)redhat.com> [2019-04-04 11:08]:
Below you can find minutes from the last meeting, please go through
that if
you missed the meeting.
Sorry I missed it. I (mistakenly) thought it was cancelled due to DST
changes.
I wanted to elaborate on
14:32:59 <Rhea> Well, I'll start by the little issue we
have with
build system on Fedora, we can't build anything non-native. Meaning,
that if we build on F29, we can not build dotnet for F28, F30, ...
only the F29 build passes.
Let me try and explain the issue:
- I am working on Fedora 29
- So far, with all the 2.x releases, I generally build source-build once
on my machine using build-source-tarball.sh [1]
- This creates a compilation of sources and buildtools (including a
bootstrap sdk, ilasm and other binaries) that can be used to compile
the sources. I zip this up into a source tarball.
- I then build a source rpm containing the source tarball (sources,
buildtools) and the RPM spec file and build it in copr (Fedora's build
system for packages which are not yet included with Fedora proper).
- Copr builds this source rpm (using the buildtools in the source
tarball) on multiple Fedora versions, each with a different version of
glibc.
This process has worked fine with .NET Core 2.x.
Starting with .NET Core 3.0 previews, something seems to have changed.
It looks like we are building tools like ilasm on Fedora too (rather
than using the prebuilt versions from nuget). Since these tools are
built on Fedora 29, they end up depending on newer glibc (GLIBC_2.28)
features, which ware not available on older versions like Fedora 28.
(Aside: Fedora 30 and Rawhide failures look unrelated; we hit them - and
worked around them - in .NET Core 2.x too.)
As far as I can tell, this problem should go away when we are no longer
including build tools in our source archives.
In the meantime, I suppose I can work around this by building the .NET
Core source tarball on the oldest Fedora version and then let copr build
it on newer versions too.
[1] The actual script is at
https://pagure.io/dotnet-sig/dotnet-2-1/blob/master/f/build-dotnet-tarball
Thanks,
Omair
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