Move generate_system_dependency to Dependency

2 files changed, 6 insertions, 3 deletions

diff --git a/mesonbuild/dependencies/base.py b/mesonbuild/dependencies/base.py
index 5584fbc..1ccc343 100644
--- a/mesonbuild/dependencies/base.py
+++ b/mesonbuild/dependencies/base.py
@@ -222,6 +222,10 @@ class Dependency:
             return default_value
         raise DependencyException('No default provided for dependency {!r}, which is not pkg-config, cmake, or config-tool based.'.format(self))
 
+    def generate_system_dependency(self, is_system: bool) -> typing.Type['Dependency']:
+        new_dep = copy.deepcopy(self)
+        new_dep.is_system = is_system
+        return new_dep
 
 class InternalDependency(Dependency):
     def __init__(self, version, incdirs, compile_args, link_args, libraries, whole_libraries, sources, ext_deps):
diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index adb854e..eb0eaf7 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -36,7 +36,7 @@ from .cmake import CMakeInterpreter
 
 from pathlib import Path, PurePath
 import os, shutil, uuid
-import re, shlex, copy
+import re, shlex
 import subprocess
 from collections import namedtuple
 from itertools import chain
@@ -492,8 +492,7 @@ class DependencyHolder(InterpreterObject, ObjectHolder):
             if not isinstance(args[0], bool):
                 raise InterpreterException('as_system takes only a boolean value')
             new_is_system = args[0]
-        new_dep = copy.deepcopy(self.held_object)
-        new_dep.is_system = new_is_system
+        new_dep = self.held_object.generate_system_dependency(new_is_system)
         return DependencyHolder(new_dep, self.subproject)
 
 class ExternalProgramHolder(InterpreterObject, ObjectHolder):