Replace the compile-time CONFIG_ACPI check by a runtime one.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
---
 hw/i386/fw_cfg.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/i386/fw_cfg.c b/hw/i386/fw_cfg.c
index d08aefa0291..a7f1b60b98c 100644
--- a/hw/i386/fw_cfg.c
+++ b/hw/i386/fw_cfg.c
@@ -145,10 +145,10 @@ FWCfgState *fw_cfg_arch_create(MachineState *ms,
      */
     fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, apic_id_limit);
     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, ms->ram_size);
-#ifdef CONFIG_ACPI
-    fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES,
-                     acpi_tables, acpi_tables_len);
-#endif
+    if (acpi_builtin()) {
+        fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES,
+                         acpi_tables, acpi_tables_len);
+    }
     fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, 1);
 
     fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, &hpet_fw_cfg, sizeof(hpet_fw_cfg));
-- 
2.47.1