* Removed the `~' operator.

src/libexpr/nixexpr-ast.def

@@ -14,7 +14,6 @@ OpAnd | Expr Expr | Expr |
 OpOr | Expr Expr | Expr |
 OpImpl | Expr Expr | Expr |
 OpUpdate | Expr Expr | Expr |
-SubPath | Expr Expr | Expr |
 OpHasAttr | Expr string | Expr |
 OpPlus | Expr Expr | Expr |
 OpConcat | Expr Expr | Expr |

src/libexpr/parser.y

@@ -373,7 +373,6 @@ expr_op
   | expr_op OR expr_op { $$ = makeOpOr($1, $3); }
   | expr_op IMPL expr_op { $$ = makeOpImpl($1, $3); }
   | expr_op UPDATE expr_op { $$ = makeOpUpdate($1, $3); }
-  | expr_op '~' expr_op { $$ = makeSubPath($1, $3); }
   | expr_op '?' ID { $$ = makeOpHasAttr($1, $3); }
   | expr_op '+' expr_op { $$ = makeConcatStrings(ATmakeList2($1, $3)); }
   | expr_op CONCAT expr_op { $$ = makeOpConcat($1, $3); }

tests/dependencies.nix

@@ -9,7 +9,7 @@ let {
 
   input2 = mkDerivation {
     name = "dependencies-input-2";
-    builder = ./. ~ "dependencies.builder2.sh";
+    builder = ./dependencies.builder2.sh;
   };
 
   body = mkDerivation {