• no longer use <stdbool.h> even if it’s available

• ensure that bool/true/false are cpp macros, overriding any pre-defined
• document the requirement that tobool(x) must map any-type 'x' into bool
• document the requirement that a bool must only be true or false, and
  that it (tobool() rather) must have an identity mapping to 'short'
• possibly fix ksh_func for/and fpFUNCTf – maybe spotted by cnuke@

funcs.c

@@ -38,7 +38,7 @@
 #endif
 #endif
 
-__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.182 2011/03/27 18:50:04 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.183 2011/04/09 15:14:52 tg Exp $");
 
 #if HAVE_KILLPG
 /*
@@ -794,7 +794,8 @@ c_typeset(const char **wp)
 					f->flag |= fset;
 					f->flag &= ~fclr;
 				} else {
-					fpFUNCTf(shl_stdout, 0, f->flag & FKSH,
+					fpFUNCTf(shl_stdout, 0,
+					    tobool(f->flag & FKSH),
 					    wp[i], f->val.t);
 					shf_putc('\n', shl_stdout);
 				}