diff --git a/scheme/last-revision b/scheme/last-revision
index ad791b7..c2d7082 100644
--- a/scheme/last-revision
+++ b/scheme/last-revision
@@ -1 +1 @@
-1849
+1850
diff --git a/src/ikarus-errno.c b/src/ikarus-errno.c
index 357393c..2226f63 100644
--- a/src/ikarus-errno.c
+++ b/src/ikarus-errno.c
@@ -31,6 +31,22 @@ typedef struct errno_info {
 #define ECANCELED 140
 #endif
 
+#ifndef ENODATA
+#define ENODATA 96
+#endif
+
+#ifndef ENOSR
+#define ENOSR 98
+#endif
+
+#ifndef ENOSTR
+#define ENOSTR 99
+#endif
+
+#ifndef ETIME
+#define ETIME 101
+#endif
+
 static errno_info errno_table[] = {
   /* errnos from POSIX IEEE Std 1003.1 2004 Edition */
   {E2BIG,            "E2BIG",            fix(-1)},