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diff --git a/source/a/bash/bash-5.1-patches/bash51-004 b/source/a/bash/bash-5.1-patches/bash51-004
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+++ b/source/a/bash/bash-5.1-patches/bash51-004
@@ -0,0 +1,126 @@
+ BASH PATCH REPORT
+ =================
+
+Bash-Release: 5.1
+Patch-ID: bash51-004
+
+Bug-Reported-by: oguzismailuysal@gmail.com
+Bug-Reference-ID: <CAH7i3LoHGmwaghDpCWRUfcY04gQmeDTH3RiG=bf2b=KbU=gyhw@mail.gmail.com>
+Bug-Reference-URL: https://lists.gnu.org/archive/html/bug-bash/2020-12/msg00039.html
+
+Bug-Description:
+
+If a key-value compound array assignment to an associative array is supplied
+as an assignment statement argument to the `declare' command that declares the
+array, the assignment doesn't perform the correct word expansions.
+
+This patch makes key-value assignment and subscript assignment perform the
+same expansions when they're supplied as an argument to `declare'.
+
+Patch (apply with `patch -p0'):
+
+*** ../bash-5.1-patched/arrayfunc.c 2020-10-09 11:38:58.000000000 -0400
+--- arrayfunc.c 2020-12-11 15:12:22.000000000 -0500
+***************
+*** 598,601 ****
+--- 598,622 ----
+ }
+ }
++
++ /* Return non-zero if L appears to be a key-value pair associative array
++ compound assignment. */
++ int
++ kvpair_assignment_p (l)
++ WORD_LIST *l;
++ {
++ return (l && (l->word->flags & W_ASSIGNMENT) == 0 && l->word->word[0] != '['); /*]*/
++ }
++
++ char *
++ expand_and_quote_kvpair_word (w)
++ char *w;
++ {
++ char *t, *r;
++
++ t = w ? expand_assignment_string_to_string (w, 0) : 0;
++ r = sh_single_quote (t ? t : "");
++ free (t);
++ return r;
++ }
+ #endif
+
+***************
+*** 641,645 ****
+
+ #if ASSOC_KVPAIR_ASSIGNMENT
+! if (assoc_p (var) && nlist && (nlist->word->flags & W_ASSIGNMENT) == 0 && nlist->word->word[0] != '[') /*]*/
+ {
+ iflags = flags & ~ASS_APPEND;
+--- 662,666 ----
+
+ #if ASSOC_KVPAIR_ASSIGNMENT
+! if (assoc_p (var) && kvpair_assignment_p (nlist))
+ {
+ iflags = flags & ~ASS_APPEND;
+*** ../bash-5.1-patched/arrayfunc.h 2020-04-29 17:24:15.000000000 -0400
+--- arrayfunc.h 2020-12-11 14:23:50.000000000 -0500
+***************
+*** 68,71 ****
+--- 68,74 ----
+ extern void quote_compound_array_list PARAMS((WORD_LIST *, int));
+
++ extern int kvpair_assignment_p PARAMS((WORD_LIST *));
++ extern char *expand_and_quote_kvpair_word PARAMS((char *));
++
+ extern int unbind_array_element PARAMS((SHELL_VAR *, char *, int));
+ extern int skipsubscript PARAMS((const char *, int, int));
+*** ../bash-5.1-patched/subst.c 2020-11-16 10:33:15.000000000 -0500
+--- subst.c 2020-12-11 15:11:10.000000000 -0500
+***************
+*** 11605,11608 ****
+--- 11605,11609 ----
+ WORD_LIST *l, *nl;
+ char *t;
++ int kvpair;
+
+ if (flags == 0)
+***************
+*** 11619,11622 ****
+--- 11620,11627 ----
+ /* Associative array */
+ l = parse_string_to_word_list (value, 1, "array assign");
++ #if ASSOC_KVPAIR_ASSIGNMENT
++ kvpair = kvpair_assignment_p (l);
++ #endif
++
+ /* For associative arrays, with their arbitrary subscripts, we have to
+ expand and quote in one step so we don't have to search for the
+***************
+*** 11624,11627 ****
+--- 11629,11638 ----
+ for (nl = l; nl; nl = nl->next)
+ {
++ #if ASSOC_KVPAIR_ASSIGNMENT
++ if (kvpair)
++ /* keys and values undergo the same set of expansions */
++ t = expand_and_quote_kvpair_word (nl->word->word);
++ else
++ #endif
+ if ((nl->word->flags & W_ASSIGNMENT) == 0)
+ t = sh_single_quote (nl->word->word ? nl->word->word : "");
+
+*** ../bash-5.1/patchlevel.h 2020-06-22 14:51:03.000000000 -0400
+--- patchlevel.h 2020-10-01 11:01:28.000000000 -0400
+***************
+*** 26,30 ****
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 3
+
+ #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 4
+
+ #endif /* _PATCHLEVEL_H_ */