Fix dir command for duplicated paths and add a new testcase.

gdb/ChangeLog:
2014-01-07  Edjunior Barbosa Machado  <emachado@linux.vnet.ibm.com>

	* source.c (add_path): Fix check for duplicated paths in the previously
	included paths.

gdb/testsuite/ChangeLog:
2014-01-07  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.base/source-dir.exp: New file.

2 files changed, 27 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 8b00435..c3a40de 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2014-01-07  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	* gdb.base/source-dir.exp: New file.
+
 2014-01-07  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.ada/pp-rec-component.exp, gdb.ada/pp-rec-component.py,
diff --git a/gdb/testsuite/gdb.base/source-dir.exp b/gdb/testsuite/gdb.base/source-dir.exp
new file mode 100644
index 0000000..43b56b7
--- /dev/null
+++ b/gdb/testsuite/gdb.base/source-dir.exp
@@ -0,0 +1,23 @@
+# Copyright 2014 Free Software Foundation, Inc.
+
+# 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/>.
+
+standard_testfile
+
+gdb_start
+
+set foo "/nOtExStInG"
+
+gdb_test "directory $foo/a $foo/b $foo/c" "\r\nSource directories searched: $foo/a:$foo/b:$foo/c:\\\$cdir:\\\$cwd"
+gdb_test "directory $foo/b $foo/d $foo/c" "\r\nSource directories searched: $foo/b:$foo/d:$foo/c:$foo/a:\\\$cdir:\\\$cwd"