gio_sys

Function g_subprocess_launcher_set_child_setup

Source 
pub unsafe extern "C" fn g_subprocess_launcher_set_child_setup(
    self_: *mut GSubprocessLauncher,
    child_setup: GSpawnChildSetupFunc,
    user_data: gpointer,
    destroy_notify: GDestroyNotify,
)
Available on Unix only.