https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87942
--- Comment #3 from Johannes Vetter <johannes.vet...@dom-sicherheitstechnik.de> --- Ok, thanks a lot. I haven't expected that an initializer could change the alignment of a variable. "-fno-common" does not work in my case (perhaps because the variable already has a attribute "section"). If i set the alignment of the variable AND the exported variable in the header file, it works fine. My problem now: in how many other cases is the same behavior? I cannot check every global variable/struct by hand.
