The virtio-gpu.h file defines a macro VIRTIO_GPU_FILL_CMD
which includes a call to qemu_log_mask, but does not
include qemu/log.h. In a default configure, it is lucky
and gets qemu/log.h indirectly due to the 'log' trace
backend being enabled. If that trace backend is disabled
though, eg
./configure --enable-trace-backends=nop
Then the build will fail:
In file included from
/home/berrange/src/virt/qemu/hw/display/virtio-gpu-3d.c:19:0:
/home/berrange/src/virt/qemu/hw/display/virtio-gpu-3d.c: In function
‘virgl_cmd_create_resource_2d’:
/home/berrange/src/virt/qemu/include/hw/virtio/virtio-gpu.h:138:13: error:
implicit declaration of function ‘qemu_log_mask’
[-Werror=implicit-function-declaration]
qemu_log_mask(LOG_GUEST_ERROR, \
^
/home/berrange/src/virt/qemu/hw/display/virtio-gpu-3d.c:34:5: note: in
expansion of macro ‘VIRTIO_GPU_FILL_CMD’
VIRTIO_GPU_FILL_CMD(c2d);
^~~~~~~~~~~~~~~~~~~
/home/berrange/src/virt/qemu/hw/display/virtio-gpu-3d.c:34:5: error: nested
extern declaration of ‘qemu_log_mask’ [-Werror=nested-externs]
In file included from
/home/berrange/src/virt/qemu/hw/display/virtio-gpu-3d.c:19:0:
/home/berrange/src/virt/qemu/include/hw/virtio/virtio-gpu.h:138:27: error:
‘LOG_GUEST_ERROR’ undeclared (first use in this function)
qemu_log_mask(LOG_GUEST_ERROR, \
[snip many more errors]
Signed-off-by: Daniel P. Berrange <berra...@redhat.com>
---
include/hw/virtio/virtio-gpu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index e4f424a..20d1cd6 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -19,6 +19,7 @@
#include "ui/console.h"
#include "hw/virtio/virtio.h"
#include "hw/pci/pci.h"
+#include "qemu/log.h"
#include "standard-headers/linux/virtio_gpu.h"
#define TYPE_VIRTIO_GPU "virtio-gpu-device"
--
2.7.4
