Problem with linked libraries and GTK+ - c++

Question

When trying to compile with Code::Blocks the example that comes up with GTK+:
#include stdlib.h
#include gtk/gtk.h
static void helloWorld (GtkWidget *wid, GtkWidget *win)
{
GtkWidget *dialog = NULL;
dialog = gtk_message_dialog_new (GTK_WINDOW (win), GTK_DIALOG_MODAL, GTK_MESSAGE_INFO, GTK_BUTTONS_CLOSE, "Hello World!");
gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_CENTER);
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
}
int main (int argc, char *argv[])
{
GtkWidget *button = NULL;
GtkWidget *win = NULL;
GtkWidget *vbox = NULL;
/* Initialize GTK+ */
g_log_set_handler ("Gtk", G_LOG_LEVEL_WARNING, (GLogFunc) gtk_false, NULL);
gtk_init (&argc, &argv);
g_log_set_handler ("Gtk", G_LOG_LEVEL_WARNING, g_log_default_handler, NULL);
/* Create the main window */
win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_container_set_border_width (GTK_CONTAINER (win), 8);
gtk_window_set_title (GTK_WINDOW (win), "Hello World");
gtk_window_set_position (GTK_WINDOW (win), GTK_WIN_POS_CENTER);
gtk_widget_realize (win);
g_signal_connect (win, "destroy", gtk_main_quit, NULL);
/* Create a vertical box with buttons */
vbox = gtk_vbox_new (TRUE, 6);
gtk_container_add (GTK_CONTAINER (win), vbox);
button = gtk_button_new_from_stock (GTK_STOCK_DIALOG_INFO);
g_signal_connect (G_OBJECT (button), "clicked", G_CALLBACK (helloWorld), (gpointer) win);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
button = gtk_button_new_from_stock (GTK_STOCK_CLOSE);
g_signal_connect (button, "clicked", gtk_main_quit, NULL);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
/* Enter the main loop */
gtk_widget_show_all (win);
gtk_main ();
return 0;
}
I receive the following errors:
ld.exe||cannot find -lgobject-2.0|
ld.exe||cannot find -lglib-2.0|
||=== Build finished: 2 errors, 0 warnings ===|
I have linked both to the project, but I can't find a way to make it work. I have tried both the bundled and separated packages from http://www.gtk.org/download-windows.html. I'm pretty sure it must be something simple/stupid but I couldn't find anything that could help me to solve this problem.

Answer 1

Have you added the GTK Directory containing the libglib-2.0.a, libgobject-2.0.a files to the Linker Search Directories.
This can be done from the following Path:
Settings | Compiler and debugger... | Search directories | Linker | Add.
The full command line for the compiler/linker can be viewed in the Build Log window. To enable this go to:
Settings | Compiler and debugger... | Other Settings | Compiler logging | Full command line
I didn't come across the missing entrance point issue so maybe your copy of GTK is corrupted. Download the All-in-one bundle from GTK+ 2.22
make sure you add all the Include Directories in Search directories | Compiler
As a side note you may need to compile your project using -mms-bitfields which can be added in:
Settings | Compiler and debugger... | Other options just paste the flag as is.

Answer 2

When code::blocks is running ld.exe instead of calling it with, for example: -l glib-2.0 it is calling it with -lglib-2.0
Adding a space before the lib's name in code::block's linker options should fix it.