This comes from OpenMP installed on your computer (probably as Homebrew package libomp) Apple doesn't care about supporting OpenMP (nor anything that doesn't add to its pile of cash it seems :-)) so the correct compiler flags to use are `-Xpreprocessor -fopenmp` and not `-fopenmp`.
There are many ways forward, none of it painless, while https://github.com/sagemath/sage/issues/40898 is still not fixed. One option - (temporarily) uninstall, or otherwise break, your OpenMP install. Or you can try using https://github.com/sagemath/sage/pull/40397 On Sun, Feb 15, 2026 at 3:17 PM Sette Diop <[email protected]> wrote: > > Hi: > > I am building sage-10.8 on macOS Tahoe 26.3 and Xcode 26.2 and run through > this error: > > Error building Sage. > > The following package(s) may have failed to build (not necessarily > during this run of 'make all-start'): > > * package: fflas_ffpack-2.5.0+sage-2024-05-18b > last build time: Feb 15 21:13 > log file: > /Applications/sage/logs/pkgs/fflas_ffpack-2.5.0+sage-2024-05-18b.log > > > The log file > > fflas_ffpack-2.5.0+sage-2024-05-18b.log > > is attached. > > Any help is welcome! > > Thanks, > > Diop > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/sage-devel/AAF3F34B-473E-489C-95F7-C8D5A0469630%40gmail.com. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/sage-devel/CAAWYfq2%3DS5CoLLu_T2W49q%3DsntnOMFsLXFm4h_gFW22zSL1AoA%40mail.gmail.com.
