diff --git a/src/unix/linux-syscalls.h b/src/unix/linux-syscalls.h
index 195a981d..ba44974a 100644
--- a/src/unix/linux-syscalls.h
+++ b/src/unix/linux-syscalls.h
@@ -30,8 +30,27 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 
-#define UV__O_NONBLOCK        0x800
-#define UV__O_CLOEXEC         0x80000
+#if defined(__alpha__)
+# define UV__O_CLOEXEC        0x200000
+#elif defined(__hppa__)
+# define UV__O_CLOEXEC        0x200000
+#elif defined(__sparc__)
+# define UV__O_CLOEXEC        0x400000
+#else
+# define UV__O_CLOEXEC        0x80000
+#endif
+
+#if defined(__alpha__)
+# define UV__O_NONBLOCK       0x4
+#elif defined(__hppa__)
+# define UV__O_NONBLOCK       0x10004
+#elif defined(__mips__)
+# define UV__O_NONBLOCK       0x80
+#elif defined(__sparc__)
+# define UV__O_NONBLOCK       0x4000
+#else
+# define UV__O_NONBLOCK       0x800
+#endif
 
 #define UV__EFD_CLOEXEC       UV__O_CLOEXEC
 #define UV__EFD_NONBLOCK      UV__O_NONBLOCK