diff --git a/lang/cem/libcc.ansi/core/printf/itoa.c b/lang/cem/libcc.ansi/core/printf/itoa.c
new file mode 100644
index 000000000..64104f50a
--- /dev/null
+++ b/lang/cem/libcc.ansi/core/printf/itoa.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+void itoa(long value, char* buffer, int radix)
+{
+	if (value < 0)
+	{
+		*buffer++ = '-';
+		value = -value;
+	}
+	buffer = _i_compute(value, 10, buffer, 0);
+	*buffer++ = '\0';
+}
+
diff --git a/lang/cem/libcc.ansi/headers/stdio.h b/lang/cem/libcc.ansi/headers/stdio.h
index c6ddb8808..45495d632 100644
--- a/lang/cem/libcc.ansi/headers/stdio.h
+++ b/lang/cem/libcc.ansi/headers/stdio.h
@@ -75,6 +75,7 @@ extern void	perror(const char *_s);
 
 /* Internal function used in several places which is approximately itoa(). */
 extern char *_i_compute(unsigned long val, int base, char *s, int nrdigits);
+extern void itoa(long val, char* buffer, int radix);
 
 #if ACKCONF_WANT_EMULATED_FILE
 #include <ack/emufile.h>