Hi Helge, On Sun, Jan 05, 2025 at 11:17:33PM +0100, Helge Deller wrote: > On 1/4/25 10:27, Niels Thykier wrote: > > On Sat, 4 Jan 2025 07:49:05 +0100 Helge Deller <del...@gmx.de> > > wrote: > > > Package: dpkg Version: 1.22.11 > > > > > > dpkg-buildpackage has become incredible slow. This seems to have > > > started around end of 2024. > > I was able to narrow the issue down. > make-dfsg (4.4.1-1) is introducing the issue. > > Reverting "make" back down to version 4.3-4.1 solves the issue > and lets "dpkg-buildpackage" run lightning fast again. > > Looking at the make changelog, this seems related: > * New upstream version 4.4. Closes: #1029106. > - Exports variables to commands started by $(shell ...).
That is indeed probably the reason; I’ve seen more significant speed degradation in gcc-mingw-w64 for example (fixed by avoiding recursive expansions). Could you qualify “incredible slow”? In my tests, vim fails its tests so I can’t measure the speed difference, and neomutt went from a 1 min build in testing (on my 10-year-old system) to 1:30, which is significant but not incredibly slow in my book. There is a noticeable pause whenever debian/rules is loaded, so Make is definitely doing too much work. I’ll try to come up with a minimal reproducer and forward the issue upstream. Regards, Stephen
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