1 files changed, 18 insertions, 0 deletions
diff --git a/usr.bin/bc/bc.y b/usr.bin/bc/bc.y
index b00d140..b00d5ac 100644
--- a/usr.bin/bc/bc.y
+++ b/usr.bin/bc/bc.y
@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
 #include <err.h>
 #include <errno.h>
 #include <getopt.h>
+#include <histedit.h>
 #include <limits.h>
 #include <search.h>
 #include <signal.h>
@@ -1106,6 +1107,13 @@ sigchld(int signo)
 	}
 }
 
+static const char *
+dummy_prompt(void)
+{
+
+        return ("");
+}
+
 int
 main(int argc, char *argv[])
 {
@@ -1173,6 +1181,16 @@ main(int argc, char *argv[])
 			dup(p[1]);
 			close(p[0]);
 			close(p[1]);
+			if (interactive) {
+				el = el_init("bc", stdin, stderr, stderr);
+				hist = history_init();
+				history(hist, &he, H_SETSIZE, 100);
+				el_set(el, EL_HIST, history, hist);
+				el_set(el, EL_EDITOR, "emacs");
+				el_set(el, EL_SIGNAL, 1);
+				el_set(el, EL_PROMPT, dummy_prompt);
+				el_source(el, NULL);
+			}
 		} else {
 			close(STDIN_FILENO);
 			dup(p[0]);