https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118831
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to jcldc13 from comment #2) > > (In reply to Richard Biener from comment #1) > > I don't think you can do this in F77, you need to properly use iso_c99 > > bindings. > > You likely get the "unprototyped" call ABI which differs from varargs. > > What do you mean ? > It can not work on aarch64 architecture or not at all architecture ? > > Because I am working on a project, for many years, mixing f77 and c code, > which is compiling/running fine on x86-64 arch but not anymore on arm arch. I mean you have been lucky with the x86-64 ABI. Your code is not conforming. The F77 code assumes a C function declared as int test_va_arg_f3();
