System: Windows7, 32 bit, GTK 2.24.10, mingw  

I am trying to write basic helloworld.c type GTK based application. However, it doesn't run.  

These are the steps which I followed. 

1. Install MinGW.
2. Download GTK+ all in one bundle.
3. Extract content in C:\gtk folder.
4. Open cmd and go to C:\gtk\bin directory and run pkg-config --cflags --libs gtk+-win32-2.0
5. It prints list of compilation flags, and libraries to link your
project to.
Copy them and create a bath file as follows.
set VAR=FLAGS
start cmd
where VAR = GTK, and FLAGS = output of the previous command (pkg-config).
When you want to compile file use command : gcc foo.c %VAR%

D:\gtk>gcc -o project helloworld.c %GTK%  

gcc: %GTK%: No such file or directory
helloworld.c:1:21: error: gtk/gtk.h: No such file or directory
helloworld.c: In function 'main':
helloworld.c:5: error: 'GtkWidget' undeclared (first use in this function)
helloworld.c:5: error: (Each undeclared identifier is reported only once
helloworld.c:5: error: for each function it appears in.)
helloworld.c:5: error: 'window' undeclared (first use in this function)
helloworld.c:9: error: 'GTK\_WINDOW\_TOPLEVEL' undeclared (first use in this function)

```
D:\gtk>gcc -Wall -g helloworld.c -o helloworld pkg-config --cflags gtk+-2.0 pkg-config --libs gtk+-2.0
gcc: pkg-config: No such file or directory
gcc: gtk+-2.0: No such file or directory
gcc: pkg-config: No such file or directory
gcc: gtk+-2.0: No such file or directory
cc1.exe: error: unrecognized command line option "-fcflags"
cc1.exe: error: unrecognized command line option "-flibs"

```

batch file in D:\gtk 

```
set GTK=-mms-bitfields -IC:/gtk/include/gtk-2.0 -IC:/gtk/lib/gtk-2.0/include -IC:/gtk/include/atk-1.0 -IC:/gtk/include/cairo -IC:/gtk/include/gdk-pixbuf-2.0 -IC:/gtk/include/pango-1.0 -IC:/gtk/include/glib-2.0 -IC:/gtk/lib/glib-2.0/include -IC:/gtk/include -IC:/gtk/include/freetype2 -IC:/gtk/include/libpng14  -LC:/gtk/lib -lgtk-win32-2.0 -lgdk-win32-2.0 -latk-1.0 -lgio-2.0 -lpangowin32-1.0 -lgdi32 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lglib-2.0 -lintl
start cmd

```

helloworld.c

```
#include <gtk/gtk.h>

int main( int   argc,
          char *argv[] )
{
    GtkWidget *window;

    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_widget_show  (window);

    gtk_main ();

    return 0;
}

```

Reference : [Installing gtk and compiling using gcc under windows?](https://stackoverflow.com/questions/1450445/installing-gtk-and-compiling-using-gcc-under-windows?lq=1)