--- a/src/linux_sysfs.c
+++ b/src/linux_sysfs.c
@@ -50,9 +50,6 @@
 #include <dirent.h>
 #include <errno.h>
 
-#if defined(__i386__) || defined(__x86_64__)
-#include <sys/io.h>
-#else
 #define inb(x) -1
 #define inw(x) -1
 #define inl(x) -1
@@ -60,7 +57,6 @@
 #define outw(x,y) do {} while (0)
 #define outl(x,y) do {} while (0)
 #define iopl(x) -1
-#endif
 
 #ifdef HAVE_MTRR
 #include <asm/mtrr.h>