Modern compilers are picky.

diff --git a/letterize.c b/letterize.c
index 949ddbcbe28d6f2d67fd64571a79de1aeb3be1a5..2311a82e4909279f0c936bcc9de52ce5935a460d 100644 (file)
--- a/letterize.c
+++ b/letterize.c
@@ -176,6 +176,8 @@ short m1,m2,m3;                             /* all in 0..26 */
  * ------------------------------ CUT HERE -----------------------------------
  */
 
+#include <stdio.h>
+
 /*
        obvword  --  do one word
 
@@ -242,4 +244,4 @@ char **argv;
     return(0);
 }
 
-/* phonegen.c ends here */
+/* letterize.c ends here */