diff -Naur cdecl-2.5/cdecl.c cdecl-2.5-new/cdecl.c
--- cdecl-2.5/cdecl.c	1996-01-15 21:54:46.000000000 -0600
+++ cdecl-2.5-new/cdecl.c	2010-09-04 03:12:43.000000000 -0500
@@ -90,7 +90,7 @@
 #ifdef USE_READLINE
 # include <readline/readline.h>
   /* prototypes for functions related to readline() */
-  char * getline();
+  char * our_getline(void);
   char ** attempt_completion(char *, int, int);
   char * keyword_completion(char *, int);
   char * command_completion(char *, int);
@@ -375,7 +375,7 @@
 static char *line_read = NULL;
 
 /* Read a string, and return a pointer to it.  Returns NULL on EOF. */
-char * getline ()
+char * our_getline (void)
 {
   /* If the buffer has already been allocated, return the memory
      to the free pool. */
@@ -887,7 +887,7 @@
 
 	if (!quiet) (void) printf("Type `help' or `?' for help\n");
 	ret = 0;
-	while ((line = getline())) {
+	while ((line = our_getline())) {
 	    if (!strcmp(line, "quit") || !strcmp(line, "exit")) {
 		free(line);
 		return ret;