Created attachment 229617 [details]
ms-ole file

Hello.

I am very thankful for Vala Team.

I use Gsf.InputGZip to read compressed data with no header and no trailer.
So, I set "raw" property to "true".
Then, when compiling, "error: ‘GSF_TYPE_INPUT_GZIP’ undeclared."

    in c code:
    _tmp14_ = g_object_new (GSF_TYPE_INPUT_GZIP, "raw", TRUE, "source", _tmp13_, NULL);

So, I generated c source. and after prepending
#define GSF_TYPE_INPUT_GZIP GSF_INPUT_GZIP_TYPE in the generated c file.
Compile successful.

Please, see the below.

---------------

$ valac --version
Vala 0.16.1

$ valac gsf-decompress.vala --pkg libgsf-1
gsf-decompress.vala.c: In function ‘_vala_main’:
gsf-decompress.vala.c:101:26: error: ‘GSF_TYPE_INPUT_GZIP’ undeclared (first use in this function)
gsf-decompress.vala.c:101:26: note: each undeclared identifier is reported only once for each function it appears in
error: cc exited with status 256
Compilation failed: 1 error(s), 0 warning(s)

$ valac -C gsf-decompress.vala --pkg libgsf-1

$ sed -i '1s/^/#define GSF_TYPE_INPUT_GZIP GSF_INPUT_GZIP_TYPE/g' gsf-decompress.c

$ gcc -o gsf-decompress gsf-decompress.c `pkg-config --cflags --libs libgsf-1`

$ ./gsf-decompress kreg1.hwp


------- gsf-decompress.vala ---------
void main (string[] args)
{
    Gsf.InfileMSOle olefile;

    string filename = args[1];

    try   {
        var file = new Gsf.InputStdio (filename);
        olefile  = new Gsf.InfileMSOle (file);
    }
    catch {
        stderr.printf ("%s is not a OLE file\n", filename);
        return;
    }

    var input = olefile.child_by_name("DocInfo");

    Gsf.InputGZip stream;
    stream = (Gsf.InputGZip) GLib.Object.new (typeof(Gsf.InputGZip),
                                              raw:    true,
                                              source: input);
}
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