[MacPorts] #71857: qemu @9.2.0_0 +cocoa+curses+spice+spice_protocol+ssh+target_arm+target_i386+target_x86_64+usb+vnc: error: call to undeclared function 'hv_vm_config_get_default_ipa_size'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

[MacPorts]

#71857: qemu @9.2.0_0
+cocoa+curses+spice+spice_protocol+ssh+target_arm+target_i386+target_x86_64+usb+vnc:
error: call to undeclared function 'hv_vm_config_get_default_ipa_size'; ISO
C99 and later do not support implicit function declarations [-Wimplicit-
function-declaration]
----------------------+----------------------------
  Reporter:  lafpark  |      Owner:  raimue
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.10.5
Resolution:           |   Keywords:  monterey arm64
      Port:  qemu     |
----------------------+----------------------------

Comment (by raimue):

 This observation seems correct to me. The problem occurs in
 target/arm/hvf/hvf.c that is only compiled on arm64 for
 Hypervisor.framework.

 Upstream regularly drops support for older macOS releases and consequently
 removes any #ifdef guards in the code. The current qemu version officially
 only supports macOS >= 13. We were lucky that the build worked at all on
 macOS 12 x86_64.

 The upstream commit introducing the problem for macOS 12 seems to be this
 one:
 https://github.com/qemu/qemu/commit/2c760670af5f013d99d50f627275a482fd491e3f

 As a workaround, we might still be able to build without support for
 Hypervisor.framework with `--disable-hvf` as a configure option on macOS
 12 arm64 as a workaround. However, that would result in a QEMU that has no
 hardware acceleration and will be of limited use.

 Alternatively, this completely untested patch could help (if there are not
 more places like this one), but I have no macOS12 arm64 machine to try
 this:

 {{{#!diff
 diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
 index 0afd96018..f7b4b4392 100644
 --- a/target/arm/hvf/hvf.c
 +++ b/target/arm/hvf/hvf.c
 @@ -972,6 +972,8 @@ void hvf_arch_vcpu_destroy(CPUState *cpu)

  hv_return_t hvf_arch_vm_create(MachineState *ms, uint32_t pa_range)
  {
 +#if defined(MAC_OS_VERSION_13_0) && \
 +    MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_VERSION_13_0
      hv_return_t ret;
      hv_vm_config_t config = hv_vm_config_create();

 @@ -982,6 +984,9 @@ hv_return_t hvf_arch_vm_create(MachineState *ms,
 uint32_t pa_range)
      chosen_ipa_bit_size = pa_range;

      ret = hv_vm_create(config);
 +#else
 +    ret = hv_vm_create(HV_VM_DEFAULT);
 +#endif

  cleanup:
      os_release(config);
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/71857#comment:6>
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