@@ -1,20 +1,23 @@
 #include <k/mem.h>
 #include <k/core.h>
 #include <k/def.h>
 #include <k/type.h>
-#include <posix.h>
 /* heapf.c - kmheapf() "heap free"
  * ~ lexi hale <lexi@hale.su>
  * kmheapf() frees a region on the heap à la libc free()
  * see also: kmheapa() "heap alloc"
  */
 
-/* we define all platform functions here,
- * whether or not they're for the correct
- * platform - only the ones actually called
- * by the generated code will be linked,
- * linker errors are our friend here! */
+/* arch specific headers */
+#ifdef KFenv_posix
+#	include <posix/posix.h>
+#endif
+
+/* we define all our platform functions here, whether or not
+ * they're for the correct platform - only the ones that are
+ * called by the preprocessed form of the code will actually
+ * be linked, linker errors are our friend here! */
 extern int kmem_platform_munmap(void* addr, unsigned long sz);
 
 kmcond kmheapf(void* ptr) {
 	/* take an object allocated on the heap and free it,
@@ -37,9 +40,9 @@
 			return kmcond_bad_address;
 		}
 
 #	else
-		Knoimpl(kmheapa,KVos);
+		Knoimpl(kmheapf,KVos);
 #		error missing implementation
 #	endif
 	return kmcond_ok;
 }