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diff --git a/debian/patches/bash31-001.dpatch b/debian/patches/bash31-001.dpatch
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+++ b/debian/patches/bash31-001.dpatch
@@ -0,0 +1,123 @@
+#! /bin/sh -e
+
+if [ $# -eq 3 -a "$2" = '-d' ]; then
+ pdir="-d $3"
+elif [ $# -ne 1 ]; then
+ echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+ exit 1
+fi
+case "$1" in
+ -patch) patch $pdir -f --no-backup-if-mismatch -p0 < $0;;
+ -unpatch) patch $pdir -f --no-backup-if-mismatch -R -p0 < $0;;
+ *)
+ echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+ exit 1
+esac
+exit 0
+
+# DP: Fix parsing problems with compound assignments
+
+ BASH PATCH REPORT
+ =================
+
+Bash-Release: 3.1
+Patch-ID: bash31-001
+
+Bug-Reported-by: Mike Frysinger <vapier@gentoo.org>
+Bug-Reference-ID: <20051212015924.GA820@toucan.gentoo.org> <20051214034438.GK1863@toucan.gentoo.org>
+Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2005-12/msg00030.html http://lists.gnu.org/archive/html/bug-bash/2005-12/msg00041.html
+
+Bug-Description:
+
+There are parsing problems with compound assignments in several contexts,
+including as arguments to builtins like `local', `eval', and `let', and
+as multiple assignments in a single command.
+
+Patch:
+
+*** ../bash-3.1/parse.y Fri Nov 11 23:14:18 2005
+--- parse.y Fri Dec 16 20:43:07 2005
+***************
+*** 3696,3700 ****
+ b = builtin_address_internal (token, 0);
+ if (b && (b->flags & ASSIGNMENT_BUILTIN))
+! parser_state |= PST_ASSIGNOK;
+ }
+
+--- 3696,3702 ----
+ b = builtin_address_internal (token, 0);
+ if (b && (b->flags & ASSIGNMENT_BUILTIN))
+! parser_state |= PST_ASSIGNOK;
+! else if (STREQ (token, "eval") || STREQ (token, "let"))
+! parser_state |= PST_ASSIGNOK;
+ }
+
+***************
+*** 4687,4691 ****
+ {
+ WORD_LIST *wl, *rl;
+! int tok, orig_line_number, orig_token_size;
+ char *saved_token, *ret;
+
+--- 4689,4693 ----
+ {
+ WORD_LIST *wl, *rl;
+! int tok, orig_line_number, orig_token_size, orig_last_token, assignok;
+ char *saved_token, *ret;
+
+***************
+*** 4693,4696 ****
+--- 4695,4699 ----
+ orig_token_size = token_buffer_size;
+ orig_line_number = line_number;
++ orig_last_token = last_read_token;
+
+ last_read_token = WORD; /* WORD to allow reserved words here */
+***************
+*** 4699,4702 ****
+--- 4702,4707 ----
+ token_buffer_size = 0;
+
++ assignok = parser_state&PST_ASSIGNOK; /* XXX */
++
+ wl = (WORD_LIST *)NULL; /* ( */
+ parser_state |= PST_COMPASSIGN;
+***************
+*** 4741,4745 ****
+ }
+
+! last_read_token = WORD;
+ if (wl)
+ {
+--- 4746,4750 ----
+ }
+
+! last_read_token = orig_last_token; /* XXX - was WORD? */
+ if (wl)
+ {
+***************
+*** 4753,4756 ****
+--- 4758,4765 ----
+ if (retlenp)
+ *retlenp = (ret && *ret) ? strlen (ret) : 0;
++
++ if (assignok)
++ parser_state |= PST_ASSIGNOK;
++
+ return ret;
+ }
+*** ../bash-3.1/patchlevel.h Wed Jul 20 13:58:20 2005
+--- patchlevel.h Wed Dec 7 13:48:42 2005
+***************
+*** 26,30 ****
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 0
+
+ #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+ looks for to find the patch level (for the sccs version string). */
+
+! #define PATCHLEVEL 1
+
+ #endif /* _PATCHLEVEL_H_ */