Hello, Piotr. Thanks for your review and comments. However, I'm unsure the issue is there (and I have no other clue, because no window machine nor VM). I agree that [MS documentation](https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/cbuild-fcb...) defines the signature you mention, but it is the same for _Cbuild, and I used it as a template. I could have suspected the entries crealf(int64) & cimagf(int64) to be the cause if it had been a 32 vs 64 bit issue. But I don't understand why the difference is between windows & linux. Moreover, I checked the stage log, and I see only zeroes in the failing tests reports, which is weird, even with params size issues).
By the way, the positive thing is I figured out that msvcr120_app/msvcr120_app.spec had to be updated. However, the current build-linux stage seems to fail for reasons not related to the branch (I tried to revert a commit then commit back after setting again my user name & email, and still fails saying email not set when other stage do not complain).