-diff -ur mksh-40.org//tree.c mksh-40/tree.c
---- mksh-40.org//tree.c 2011-05-29 04:19:21.000000000 +0200
-+++ mksh-40/tree.c 2011-07-07 18:30:12.088149284 +0200
-@@ -289,7 +289,7 @@
- case CHAR:
- c = *wp++;
- if ((opmode & WDS_MAGIC) &&
-- (ISMAGIC(c) || c == '[' || c == '!' ||
-+ (ISMAGIC(c) || c == '[' || c == '!' || c == NOT2 ||
- c == '-' || c == ']' || c == '*' || c == '?'))
- shf_putc(MAGIC, shf);
- shf_putc(c, shf);
-diff -urN mksh.org/check.t mksh/check.t
---- mksh.org/check.t 2014-01-11 19:10:02.000000000 +0100
-+++ mksh/check.t 2014-01-20 14:12:37.924222697 +0100
-@@ -2085,7 +2085,7 @@
- cbc
- -bc cbc
+diff -ur mksh-56.orig/check.t mksh-56/check.t
+--- mksh-56.orig/check.t 2017-08-12 22:10:26.321676398 +0200
++++ mksh-56/check.t 2017-08-12 22:41:46.886083258 +0200
+@@ -2438,7 +2438,7 @@
+ !bc +bc ,bc 0bc 1bc ^bc cbc
+ !bc +bc ,bc -bc 0bc 1bc ^bc cbc