umask = fails

[llattanzi+bash]

Configuration Information [Automatically generated, do not change]:
Machine: powerpc
OS: darwin8.0
Compiler: gcc
Compilation CFLAGS: -arch i386 -arch ppc -g -Os -pipe -no-cpp-precomp 
-arch i386 -arch ppc -pipe  -DPROGRAM='bash' -DCONF_HOSTTYPE='powerpc' 
-DCONF_OSTYPE='darwin8.0' -DCONF_MACHTYPE='powerpc-apple-darwin8.0' 
-DCONF_VENDOR='apple' -DSHELL -DHAVE_CONFIG_H -DMACOSX   -I.  
-I/SourceCache/bash/bash-32/bash 
-I/SourceCache/bash/bash-32/bash/include 
-I/SourceCache/bash/bash-32/bash/lib -arch i386 -arch ppc -g -Os -pipe 
-no-cpp-precomp -arch i386 -arch ppc -pipe
uname output: Darwin stderr.apple.com 8.0.0b1 Darwin Kernel Version 
8.0.0b1: Mon Jul 12 21:41:56 PDT 2004; 
root:xnu/xnu-638.1.obj~4/RELEASE_PPC  Power Macintosh powerpc
Machine Type: powerpc-apple-darwin8.0

Bash Version: 2.05b
Patch Level: 0
Release Status: release

Description:
        umask = is not treated like umask a=

Repeat-By:
        $ umask 0222
        $ umask =
        $ umask
        0222
        # You should see 0777. Compare against "chmod = testfile" with 
a 0 umask.

Fix:
Index: bash/bash/builtins/umask.def
diff -u bash/bash/builtins/umask.def:1.2 
bash/bash/builtins/umask.def:1.2.14.1
--- bash/bash/builtins/umask.def:1.2    Thu Jul  1 10:42:57 2004
+++ bash/bash/builtins/umask.def        Thu Jul 15 16:09:42 2004
@@ -260,8 +260,10 @@
              bits &= ~perm;
              break;
            case '=':
-             bits &= ~who;
-             bits |= perm;
+              if (who == 0)    /* = without prefix means the same as a= */
+                who |= S_IRWXU | S_IRWXG | S_IRWXO;
+              bits &= ~who;
+             bits |= perm;
              break;

            /* No other values are possible. */