https://issues.dlang.org/show_bug.cgi?id=21974
--- Comment #13 from Walter Bright <[email protected]> --- https://github.com/dlang/dmd/pull/13107 solves the specific __builtin_va_list problem, but not the general problem. The general problem could be addressed by importing core.stdc.stdarg into the C semantic routines and thereby hijacking the D implementation for use with the C code. --
