Here is how you would compile hello.c if you want to allow it
to use symbols that were not deprecated in 3.2:
<programlisting>
-$ cc -DGDK_VERSION_MIN_REQIRED=GDK_VERSION_3_2 `pkg-config --cflags --libs gtk+-3.0` hello.c -o hello
+$ cc -DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_3_2 `pkg-config --cflags --libs gtk+-3.0` hello.c -o hello
</programlisting>
</para>