V Fri, May 10, 2024 at 01:13:53PM +0200, Lumír Balhar napsal(a): > I might have an idea how to make building Perl packages faster and their > buildroot a little bit smaller. > > perl-devel depends on systemtap-sdt-devel and that package contains a single > script written in Python and using pycparser. The single script bring > python3-pycparser and therefore the whole Python with its standard library > to the buildroot of all perl packages although (according to my testing) > none of the packages needs it. > > I've selected all packages build-requiring perl-devel but don't > build-requiring python-devel directly - 520 in total. And from that number: > > 7 faild to build for unrelated reasons > 3 packages have python3-devel in buildroot (different reasons than > systempat-sdt-devel) > 81 packages have python3-libs but not python3-devel (different reasons than > systempat-sdt-devel) > > and finally, the rest - 436 packages - builds fine without the python script > in systemtap-sdt-devel and therefore without Python at all. > > My idea is to split systemtap-sdt-devel into two packages: one with all the > content but without the python script (/usr/bin/dtrace) and a new one > containing only the mentioned script. > > That would make buildroots for many packages smaller and their builds > faster. > > I also did a test rebuild of all packages directly build-requiring > systemtap-sdt-devel and identified these packages that really need the > dtrace script: glib2, sssd, qemu, python2.7, postgresql15, postgresql16, > perl, php, mariadb10.11, and libvirt. Those would newly depend on a new > package where we move the script to. > > What do you think about this idea? Is it worth writing a Fedora change for > it? > That looks like a great optimization from Perl point of view. It also seems that only 10 components will need adjustments, so a self-contained Fedora change should be enough. Unanswered question is run-time dependencies. There might be packages which run-require systemtap-sdt-devel because of dtrace executable: # dnf -q -C repoquery --whatrequires systemtap-sdt-devel lttng-ust-devel-0:2.13.8-1.fc41.x86_64 perl-devel-4:5.38.2-507.fc41.x86_64 systemtap-testsuite-0:5.1~pre17062192g5fd8daba-1.fc40.x86_64 But probably the most important part is systemtap maintainer (CCed). Is he fine with this change? Isn't this incompatible change too obstrusive for dtrace users? I believe it isn't, otherwise dtrace would not be packaged in a -devel package. -- Petr
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