[Vala] undefined reference to 'SDL_Init' and/or 'WinMain 16' (under Windows)

[Raum no-log org]

Hi,

I'm testing Vala and I think I didn't understand how to use package with
it... I want to use SDL and SDLNet but I've got an "undefined
reference"...

Here is my test program :
--------------------
using GLib;
using SDL;

int main (string[] args) {
    SDL.init( 0 );

    SDL.quit( );
    stdout.printf ("Hello world!");
    return 0;
}
--------------------

My command line to compile :
---------------------
> valac --pkg sdl test.vala
(...)\LOCALS~1\Temp/cconhiY1.o:test.vala.c:(.text+0x15): undefined
reference to `SDL_Init'
(...)\LOCALS~1\Temp/cconhiY1.o:test.vala.c:(.text+0x1a): undefined
reference to `SDL_Quit'
c:/vala-0.12.0/lib/libmingw32.a(main.o):main.c:(.text+0xbd): undefined
reference to `WinMain 16'
collect2: ld returned 1 exit status
error: cc exited with status 1
Compilation failed: 1 error(s), 0 warning(s)
--------------------

But this sample below just compile without any error with the same command
line :
--------------------------------------
using GLib;
using SDL;

int main (string[] args) {
   stdout.printf ("Hello world!");
   return 0;
}
--------------------------------------

Result :
-----------------------
> > valac --pkg sdl test2.vala

> > test2
Hello world!
----------------------

Where am i wrong ?

Thanks !

Regards

Raum