Index: sys/amd64/include/pcpu.h
===================================================================
--- sys/amd64/include/pcpu.h
+++ sys/amd64/include/pcpu.h
@@ -109,8 +109,6 @@
 #define MONITOR_STOPSTATE_RUNNING	0
 #define MONITOR_STOPSTATE_STOPPED	1
 
-#if defined(__GNUCLIKE___TYPEOF)
-
 /*
  * Evaluates to the byte offset of the per-cpu variable name.
  */
@@ -277,12 +275,6 @@
 	}								\
 } while (0);
 
-#else /* !__GNUCLIKE___TYPEOF */
-
-#error "this file needs to be ported to your compiler"
-
-#endif /* __GNUCLIKE___TYPEOF */
-
 #endif /* _KERNEL */
 
 #endif /* !_MACHINE_PCPU_H_ */
Index: sys/i386/include/pcpu.h
===================================================================
--- sys/i386/include/pcpu.h
+++ sys/i386/include/pcpu.h
@@ -99,8 +99,6 @@
 #define MONITOR_STOPSTATE_RUNNING	0
 #define MONITOR_STOPSTATE_STOPPED	1
 
-#if defined(__GNUCLIKE___TYPEOF)
-
 /*
  * Evaluates to the byte offset of the per-cpu variable name.
  */
@@ -206,12 +204,6 @@
 
 #define	IS_BSP()	(PCPU_GET(cpuid) == 0)
 
-#else /* defined(__GNUCLIKE___TYPEOF) */
-
-#error "this file needs to be ported to your compiler"
-
-#endif /* __GNUCLIKE___TYPEOF */
-
 #endif /* _KERNEL */
 
 #endif /* !_MACHINE_PCPU_H_ */