fixes for extended glob in compat mode; fix for brackets appearing in nested parameter expansions

tests/extglob.right

@@ -182,3 +182,10 @@ no dotglob: .a .foo bar
 ? . .. .a .foo
 *
 bar
+extglob        	off
+x
+extglob        	off
+extglob        	off
+extglob        	off
+extglob        	off
+extglob        	off

tests/extglob.tests

@@ -386,5 +386,6 @@ ${THIS_SH} ./extglob4.sub
 ${THIS_SH} ./extglob5.sub
 ${THIS_SH} ./extglob6.sub
 ${THIS_SH} ./extglob7.sub
+${THIS_SH} ./extglob8.sub
 
 exit 0

tests/extglob8.sub

@@ -0,0 +1,33 @@
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# extglob option interaction with other parts of the shell that force
+# extended_glob on; only an issue in compatibility mode
+
+shopt -u extglob
+
+BASH_COMPAT=50
+shopt extglob
+
+echo $(echo $(echo $(echo $(echo $(echo x) ) ) ) )
+shopt extglob
+
+shopt -u extglob
+
+[[ '' = $(shopt extglob >&2) ]]
+shopt extglob
+
+shopt -u extglob
+
+[[ foo = $(: $(shopt extglob >&2)) ]]
+shopt extglob

tests/run-extglob

@@ -1,4 +1,4 @@
 PATH=$PATH:`pwd`
 export PATH
-${THIS_SH} ./extglob.tests | grep -v '^expect' > ${BASH_TSTOUT}
+${THIS_SH} ./extglob.tests 2>&1 | grep -v '^expect' > ${BASH_TSTOUT}
 diff ${BASH_TSTOUT} extglob.right && rm -f ${BASH_TSTOUT}