Tootfinder

I've probably mentioned that I'm working on switching #Gentoo from our half-broken eselect-ldso logic to #FlexiBLAS. This also involves a transition period where both setups would be supported.
A good thing is that the switch is ABI-compatible with the previous state (or at least it's supposed to be — we're working with upstream on fixing function coverage). Since libblas.so, liblapack.so and the rest are replaced by symlinks, programs that link to them will simply start using FlexiBLAS. So far, so good.
Unfortunately, switching the other way doesn't work as well. Stuff newly built against our libblas.so & co. symlinks naturally reads FlexiBLAS's SONAME from them, and links to libflexiblas directly. So should you decide to switch back, some packages will stay linked to FlexiBLAS and will need to rebuilt.
In order to avoid this, I would have to replace the symlinks with wrapper libraries, having libblas.so.3 and so on SONAMEs, and linking to libflexiblas. Unfortunately, a dummy wrapper isn't going to work — the linker will complain about using indirect symbols from libflexiblas.so. So I would probably have to "reexport" their symbols somehow, and ideally split into appropriate libraries, so that `-Wl,--as-needed` wouldn't drop some of them. But how to do that?
Well, let's look at the existing logic for eselect-ldso — clearly both BLIS and OpenBLAS create some wrappers. So I've spent some time investigating upstream Makefiles, and literally couldn't find the respective targets. I mean, these are quite complex Makefiles, but I'm grepping hard and can't find even a partial match.
As it turns out, these Makefile targets are added by Gentoo-specific patches. And these patches are just horrible. In case of OpenBLAS, they create the wrapper libraries by linking all the relevant .o files from OpenBLAS build, plus the shared OpenBLAS library. So the OpenBLAS symbols relevant to each interface end up duplicated in libblas.so, liblapack.so, etc., and apparently the symbols needed by them are taken from libopenblas.so. The individual interface libraries aren't even linked to one another, so they expose their own duplicate symbols, but use the implementation from OpenBLAS instead.
BLIS is even worse — the patch is simply creating libblas.so and libcblas.so, using all BLIS objects directly, plus symbol visibility to hide symbols irrelevant to the library. So yes, libblis.so, libblas.so and libcblas.so are roughly three separate copies of the same library, differing only in symbol visibility. And of course libcblas.so doesn't use libblas.so.
Truly #GSoC quality.

#OpenTelemetry Sampling update
https://opentelemetry.io/blog/2025/sampling-milestones/

Simplon Hostel sluit na Eurosonic de deuren: 'Jongeren kiezen voor meer comfort' - RTV Noord
https://www.rtvnoord.nl/economie/1358303/simplon-hostel-sluit-na-eurosonic-de-deuren-jongeren-kiezen-voor-meer-comfort…

🩸 New blood micro-sampling method may enable early prevention of type 1 diabetes
#medicine

New blood micro-sampling method may enable early prevention of type 1 diabetes
Researchers at Karolinska Institutet, KTH Royal Institute of Technology and SciLifeLab have developed a new method for detecting early signs that the disease type 1 diabetes is going to develop. The study, conducted in an experimental model, shows that analyzing tiny amounts of blood can reveal disease-causing changes in the body, thereby enabling early treatment and disease prevention. The results have been published in the journal Diabetologia.

Android 16 QPR2: Zweite Beta bringt anpassbare App-Symbole für Pixel 6 und neuer
Google hat die zweite Beta des nächsten größeren Android-16-Updates veröffentlicht. Die QPR2-Beta hat unter anderem anpassbare App-Symbole und mehr an Bord.

A simple recipe made in heaven.
A can of tuna (I really like the cento brand soaked in olive oil), that Japanese mayo mixed with saltines.
So simple, yet it lifts the soul.

I wouldn’t put it past these muppets to adopt Roman numerals to own the libs.
https://www.newsweek.com/fact-check-mamdani-arabic-numerals-new-york-schools-11079540

Fact Check: Is Mamdani Introducing Arabic Numerals To New York Schools?
Arabic numerals are simply the digits 0 through 9—the standard number symbols used in every classroom in the United States.

A sampler by Louisa Burnham, Boddington, #Northamptonshire. 1840 https://www.sheffieldauctiongallery.com/auction/lot/lot-12…

In order to 3d print a little amplified speaker box to use for #HamRadio SSB 2-operator POTA with my wife, I want to model components and then model the box to go around them. I found a speaker on grabcad that is only a few mm different from the speaker I found in my bin. Just different enough …

Why Apple is taking this controversial symbol—“carbon neutral”—off its packaging - Fast Company https://apple.news/AfB8qC8STRH-VJXGfJMKN-Q