Default initializers (or: win32 bindings' struct sizes)

[Lionello Lunesu]

Hi,

Many structures in the win32 bindings project on dsource set their size 
using D's default initializer:

#struct STARTUPINFOA {
#	DWORD  cb = STARTUPINFOA.sizeof;
#	LPSTR  lpReserved;
#//...
#}

This does save some typing when in Win32 projects, but results in 
unexpected linker errors (dmd 1.0):

  Error 42: Symbol Undefined _D5win327winbase12STARTUPINFOA6__initZ

These errors can only be solved by
1) adding the appropriate .d files from the win32 folder on the command 
line, or
2) building a win32.lib (containing all initializers) and linking to it;
3) commenting out the "= ...sizeof;" part.

All of which seem inappropriate for a bindings project that merely 
contains translated headers.

One solution might be to add a version(..) around all default 
initializer, providing both an initialized and uninitialized version.

Another, far better, solution would be to change DMD: the compiler knows 
the initializer and can safely inline it. What's more, the there are no 
linker errors for the default built-in initializers:

struct S { int s; }    // no linker error
struct D { int d=0; }  // linker error!

The linking error occurs even with the -O -release -inline flags.

Why does DMD (I don't know about GDC) require that __init symbol for 
custom initializers and not for the default ones? Is there any chance 
that this requirement will be dropped?

L.