diff --git a/reactos/drivers/bus/acpi/acpica/include/platform/acgcc.h b/reactos/drivers/bus/acpi/acpica/include/platform/acgcc.h
index e517a23ae22..354fe2e5296 100644
--- a/reactos/drivers/bus/acpi/acpica/include/platform/acgcc.h
+++ b/reactos/drivers/bus/acpi/acpica/include/platform/acgcc.h
@@ -134,6 +134,33 @@
  */
 #define ACPI_UNUSED_VAR __attribute__ ((unused))
 
+#if defined (_AMD64_)
+
+#define COMPILER_DEPENDENT_INT64   long long int
+#define COMPILER_DEPENDENT_UINT64  unsigned long long int
+
+// FIXME: These are only sonly stubs to make it compile
+
+#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
+	do { \
+		int dummy; \
+		asm("1:     movl (%1),%%eax;" \
+			"movl   %%eax,%%edx;" \
+			:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~1L):"dx"); \
+	} while(0)
+
+#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
+	do { \
+		int dummy; \
+		asm("1:     movl (%1),%%eax;" \
+			"movl   %%eax,%%edx;" \
+			:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx"); \
+	} while(0)
+
+/*! [End] no source code translation !*/
+
+#else /* DO IA32 */
+
 #define COMPILER_DEPENDENT_INT64   long long int
 #define COMPILER_DEPENDENT_UINT64  unsigned long long int
 
@@ -164,6 +191,9 @@
 			:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx"); \
 	} while(0)
 
+#endif /* IA 32 */
+
+
 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
 {                           \
     q32 = n_hi / d32;       \