Update to work with LLVM 2.7. Removed use of dyn_cast, llvm no compiles without exceptions and rtti by default. We do need exceptions for the libconfig stuff, but rtti isn't necessary (anymore). Debug info needs to be rewritten, as in LLVM 2.7 the format has completely changed. To have something to look at while rewriting, the old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means that you have to define this to compile at the moment. Updated tango 0.99.9 patch to include updated EH runtime code, which is needed for LLVM 2.7 as well.

/*
 * vararg support for extern(C) functions
 */

module ldc.cstdarg;

// Check for the right compiler
version(LDC)
{
    // OK
}
else
{
    static assert(false, "This module is only valid for LDC");
}

alias void* va_list;

pragma(va_start)
    void va_start(T)(va_list ap, ref T);

pragma(va_arg)
    T va_arg(T)(va_list ap);

pragma(va_end)
    void va_end(va_list args);

pragma(va_copy)
    void va_copy(va_list dst, va_list src);