diff --git a/arch/i386/unistd_ilp.h b/arch/i386/unistd_ilp.h
new file mode 100644
index 0000000..8f77714
--- /dev/null
+++ b/arch/i386/unistd_ilp.h
@@ -0,0 +1,7 @@
+#ifndef _ARCH_UNISTD_ILP_H
+#define _ARCH_UNISTD_ILP_H
+
+#define _POSIX_V6_ILP32_OFF32 1
+#define _POSIX_V7_ILP32_OFF32 1
+
+#endif
\ No newline at end of file
diff --git a/include/unistd.h b/include/unistd.h
index 58e9ce7..6279a78 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -24,13 +24,27 @@
 #define _XOPEN_VERSION 700
 #endif
 
-/* 
-   Compilation should use 64-bit long, pointers, and off_t, 
-   but I don't know if a 32-bit PC will support it at runtime 
-*/
-#ifndef _POSIX_V7_LP64_OFF64
-#define _POSIX_V7_LP64_OFF64 0
-#endif
+#define _POSIX_ASYNCHRONOUS_IO 200809L
+#define _POSIX_BARRIERS 200809L
+#define _POSIX_CHOWN_RESTRICTED 0
+#define _POSIX_CLOCK_SELECTION 200809L
+#define _POSIX_JOB_CONTROL 200809L
+#define _POSIX_MAPPED_FILES 200809L
+#define _POSIX_MEMORY_PROTECTION 200809L
+#define _POSIX_NO_TRUNC 0
+#define _POSIX_READER_WRITER_LOCKS 200809L
+#define _POSIX_REALTIME_SIGNALS 200809L
+#define _POSIX_REGEXP 200809L
+#define _POSIX_SAVED_IDS 200809L
+#define _POSIX_SEMAPHORES 200809L
+#define _POSIX_SHELL 200809L
+#define _POSIX_SPIN_LOCKS 200809L
+#define _POSIX_THREAD_SAFE_FUNCTIONS 200809L
+#define _POSIX_THREADS 200809L
+#define _POSIX_TIMEOUTS 200809L
+#define _POSIX_TIMERS 200809L
+
+#include <unistd_ilp.h>
 
 #define R_OK 01
 #define W_OK 02