interpreter: when overriding a dependency make its name match

Otherwise internal dependencies have auto-generated names that are not
human readable. Instead, use the name that the dependency overrides. For
example:

```meson
meson.override_dependency('zlib', declare_dependency())
dep_zlib = dependency('zlib')
assert(dep_zlib.name() == 'zlib')
```

Fixes: #12967

1 files changed, 12 insertions, 1 deletions

diff --git a/mesonbuild/interpreter/mesonmain.py b/mesonbuild/interpreter/mesonmain.py
index 4d1f427da..fb18fa8b6 100644
--- a/mesonbuild/interpreter/mesonmain.py
+++ b/mesonbuild/interpreter/mesonmain.py
@@ -1,8 +1,9 @@
 # SPDX-License-Identifier: Apache-2.0
 # Copyright 2012-2021 The Meson development team
-# Copyright © 2021 Intel Corporation
+# Copyright © 2021-2024 Intel Corporation
 from __future__ import annotations
 
+import copy
 import os
 import typing as T
 
@@ -347,6 +348,16 @@ class MesonMain(MesonInterpreterObject):
         if not name:
             raise InterpreterException('First argument must be a string and cannot be empty')
 
+        # Make a copy since we're going to mutate.
+        #
+        #   dep = declare_dependency()
+        #   meson.override_dependency('foo', dep)
+        #   meson.override_dependency('foo-1.0', dep)
+        #   dep = dependency('foo')
+        #   dep.name() # == 'foo-1.0'
+        dep = copy.copy(dep)
+        dep.name = name
+
         optkey = OptionKey('default_library', subproject=self.interpreter.subproject)
         default_library = self.interpreter.coredata.get_option(optkey)
         assert isinstance(default_library, str), 'for mypy'