[PATCH 1/3] hw/acpi: Build IPMI stubs when ACPI is disabled

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

When ACPI is disabled, no ACPI code depends on IPMI,
so we don't need the stubs.

We need them when IPMI is enabled and ACPI disabled,
otherwise when using '--without-default-devices' we
get:

  Undefined symbols for architecture arm64:
    "_build_ipmi_dev_aml", referenced from:
        _isa_ipmi_bt_class_init in hw_ipmi_isa_ipmi_bt.c.o
  ld: symbol(s) not found for architecture arm64

Split the source set list to avoid a too long line.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/acpi/meson.build | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build
index 73f02b96912..76948cdd00d 100644
--- a/hw/acpi/meson.build
+++ b/hw/acpi/meson.build
@@ -26,12 +26,18 @@ acpi_ss.add(when: 'CONFIG_ACPI_PCIHP', if_false: files('acpi-pci-hotplug-stub.c'
 acpi_ss.add(when: 'CONFIG_ACPI_VIOT', if_true: files('viot.c'))
 acpi_ss.add(when: 'CONFIG_ACPI_ICH9', if_true: files('ich9.c', 'ich9_tco.c', 'ich9_timer.c'))
 acpi_ss.add(when: 'CONFIG_ACPI_ERST', if_true: files('erst.c'))
-acpi_ss.add(when: 'CONFIG_IPMI', if_true: files('ipmi.c'), if_false: files('ipmi-stub.c'))
+acpi_ss.add(when: 'CONFIG_IPMI', if_true: files('ipmi.c'))
 acpi_ss.add(when: 'CONFIG_PC', if_false: files('acpi-x86-stub.c'))
 if have_tpm
   acpi_ss.add(files('tpm.c'))
 endif
-system_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c', 'acpi_interface.c'))
+system_ss.add(when: 'CONFIG_ACPI', if_false: files(
+  'acpi-stub.c',
+  'acpi_interface.c',
+  'aml-build-stub.c',
+  'ghes-stub.c',
+  'ipmi-stub.c',
+))
 system_ss.add(when: 'CONFIG_ACPI_PCI_BRIDGE', if_false: files('pci-bridge-stub.c'))
 system_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
 system_ss.add(files('acpi-qmp-cmds.c'))
-- 
2.47.1