Developing GTK+ applications

This recipe will show how to build, run, and debug a graphical GTK+ application using the Eclipse IDE.

Getting ready

1. Add the eclipse-debug feature to your project's conf/local.conf file, as follows:

EXTRA_IMAGE_FEATURES += "eclipse-debug" 

2. Build a core-image-sato target image, as follows:

$ cd /opt/yocto/fsl-community-bsp/
$ source setup-environment wandboard
$ bitbake core-image-sato

3. Build a core-image-sato toolchain with the following command:

$ bitbake -c populate_sdk core-image-sato

4. Install the toolchain by running the installer, as follows:

$ cd tmp/deploy/sdk
$ ./poky-glibc-x86_64-core-image-sato-cortexa9hf-neon-toolchain-2.4.sh

Before launching the Eclipse IDE, we can check whether we are able to build and launch a GTK application manually. We will build the following GTK+ hello world application source. The following is the code in gtk_hello_world.c:

#include <gtk/gtk.h> 
 
int main(int argc, char *argv[]) 
{ 
  GtkWidget *window; 
  gtk_init (&argc, ...