Not sure if this will work properly...

diff -uNr libx86emu-2.3/mem.c libx86emu-2.3.mod/mem.c
--- libx86emu-2.3/mem.c	2019-04-24 09:37:42.000000000 +0300
+++ libx86emu-2.3.mod/mem.c	2019-06-26 13:09:22.557277079 +0300
@@ -33,9 +33,6 @@
 
 
 #include "include/x86emu_int.h"
-#if defined(__i386__) || defined (__x86_64__)
-#include <sys/io.h>
-#endif
 
 #define PERM16(a)	((a) + ((a) << 8))
 #define PERM32(a)	(PERM16(a) + (PERM16(a) << 16))
@@ -186,9 +183,9 @@
 
   emu->io.iopl_needed = (perm & (X86EMU_PERM_R | X86EMU_PERM_W)) ? 1 : 0;
 
-#if WITH_IOPL 
+#if WITH_IOPL
   emu->io.iopl_ok = emu->io.iopl_needed && getiopl() != 3 ? 0 : 1;
-#else 
+#else
   emu->io.iopl_ok = 1;
 #endif
 }
@@ -578,7 +575,7 @@
 
     emu->io.stats_i[addr]++;
 
-    return inb(addr);
+    return *((volatile unsigned char *)(addr));
   }
   else {
     *perm |= X86EMU_ACC_INVALID;
@@ -616,7 +613,7 @@
   emu->io.stats_i[addr]++;
   emu->io.stats_i[addr + 1]++;
 
-  return inw(addr);
+  return *((volatile unsigned short *)(addr));
 }
 
 
@@ -654,7 +651,7 @@
   emu->io.stats_i[addr + 2]++;
   emu->io.stats_i[addr + 3]++;
 
-  return inl(addr);
+  return *((volatile unsigned long *)(addr));
 }
 
 
@@ -673,7 +670,7 @@
 
     emu->io.stats_o[addr]++;
 
-    outb(val, addr);
+    *((volatile unsigned char *)(addr)) = val;
   }
   else {
     *perm |= X86EMU_ACC_INVALID;
@@ -708,7 +705,7 @@
   emu->io.stats_o[addr]++;
   emu->io.stats_o[addr + 1]++;
 
-  outw(val, addr);
+  *((volatile unsigned short *)(addr)) = val;
 }
 
 
@@ -745,7 +742,7 @@
   emu->io.stats_o[addr + 2]++;
   emu->io.stats_o[addr + 3]++;
 
-  outl(val, addr);
+  *((volatile unsigned long *)(addr)) = val;
 }