Disablement by default led to:

../hw/vmapple/vmapple.c:276:39: error: use of undeclared identifier 'GTIMER_VIRT'
  276 |         qdev_connect_gpio_out(cpudev, GTIMER_VIRT,
      |                                       ^
../hw/vmapple/vmapple.c:479:54: error: use of undeclared identifier 'QEMU_PSCI_CONDUIT_HVC'
  479 |         object_property_set_int(cpu, "psci-conduit", QEMU_PSCI_CONDUIT_HVC,
      |                                                      ^
../hw/vmapple/vmapple.c:556:13: error: call to undeclared function 'arm_build_mp_affinity'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
  556 |             arm_build_mp_affinity(n, GICV3_TARGETLIST_BITS);
      |             ^
3 errors generated.

pretty quickly.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
---
 hw/vmapple/vmapple.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/vmapple/vmapple.c b/hw/vmapple/vmapple.c
index 16e6110b68..5928df4411 100644
--- a/hw/vmapple/vmapple.c
+++ b/hw/vmapple/vmapple.c
@@ -51,6 +51,8 @@
 #include "system/reset.h"
 #include "system/runstate.h"
 #include "system/system.h"
+#include "gtimer.h"
+#include "cpu.h"
 
 struct VMAppleMachineState {
     MachineState parent;
-- 
2.50.1 (Apple Git-155)