diff --git a/config.h.in b/config.h.in
index 0a33fbe..98ff9e6 100644
--- a/config.h.in
+++ b/config.h.in
@@ -175,6 +175,9 @@
 /* Define if you have the lstat function.  */
 #undef HAVE_LSTAT
 
+/* Define if you have the mkfifo function.  */
+#undef HAVE_MKFIFO
+
 /* Define if you have the nice function.  */
 #undef HAVE_NICE
 
@@ -202,9 +205,15 @@
 /* Define if you have the setvbuf function.  */
 #undef HAVE_SETVBUF
 
+/* Define if you have the sigaction function.  */
+#undef HAVE_SIGACTION
+
 /* Define if you have the siginterrupt function.  */
 #undef HAVE_SIGINTERRUPT
 
+/* Define if you have the sigrelse function.  */
+#undef HAVE_SIGRELSE
+
 /* Define if you have the strftime function.  */
 #undef HAVE_STRFTIME
 
@@ -241,6 +250,9 @@
 /* Define if you have the <limits.h> header file.  */
 #undef HAVE_LIMITS_H
 
+/* Define if you have the <ncurses.h> header file.  */
+#undef HAVE_NCURSES_H
+
 /* Define if you have the <ndir.h> header file.  */
 #undef HAVE_NDIR_H