(cherry-pick): Fix [2bf561854c55a], interp alias to command whose name is the empty string.

2 files changed, 14 insertions, 8 deletions

diff --git a/generic/tclInterp.c b/generic/tclInterp.c
index 66ce1e0..8a0d653 100644
--- a/generic/tclInterp.c
+++ b/generic/tclInterp.c
@@ -660,14 +660,9 @@ NRInterpCmd(
 	    if (masterInterp == NULL) {
 		return TCL_ERROR;
 	    }
-	    if (TclGetString(objv[5])[0] == '\0') {
-		if (objc == 6) {
-		    return AliasDelete(interp, slaveInterp, objv[3]);
-		}
-	    } else {
-		return AliasCreate(interp, slaveInterp, masterInterp, objv[3],
-			objv[5], objc - 6, objv + 6);
-	    }
+
+	    return AliasCreate(interp, slaveInterp, masterInterp, objv[3],
+		    objv[5], objc - 6, objv + 6);
 	}
 	goto aliasArgs;
     }
diff --git a/tests/interp.test b/tests/interp.test
index f9c1aec..6000ffd 100644
--- a/tests/interp.test
+++ b/tests/interp.test
@@ -606,6 +606,17 @@ test interp-14.10 {testing interp-alias: error messages} -setup {
     invoked from within
 "a 1"}
 
+test interp-14.11 {{interp alias} {target named the empty string} {bug 2bf56185}} -setup {
+    set interp [interp create [info cmdcount]]
+    interp eval $interp {
+	proc {} args {return $args}
+    }
+
+} -body {
+    interp alias {} p1 $interp {}
+    p1 one two three
+} -result {one two three}
+
 # part 15: testing file sharing
 test interp-15.1 {testing file sharing} {
     catch {interp delete z}