Make win_subsystem a linker property

mesonbuild/compilers/compilers.py

@@ -874,11 +874,10 @@ class Compiler(metaclass=abc.ABCMeta):
         return []
 
     def get_win_subsystem_args(self, value: str) -> T.List[str]:
-        # This returns an empty array rather than throws to simplify the code.
-        # Otherwise we would have to check whenever calling this function whether
-        # the target is for Windows. There are also many cases where this is
-        # a meaningless choice, such as with Jave or C#.
-        return []
+        # By default the dynamic linker is going to return an empty
+        # array in case it either doesn't support Windows subsystems
+        # or does not target Windows
+        return self.linker.get_win_subsystem_args(value)
 
     def has_func_attribute(self, name: str, env: 'Environment') -> T.Tuple[bool, bool]:
         raise EnvironmentException(

mesonbuild/compilers/mixins/clang.py

@@ -109,12 +109,6 @@ class ClangCompiler(GnuLikeCompiler):
             # Shouldn't work, but it'll be checked explicitly in the OpenMP dependency.
             return []
     
-    def get_win_subsystem_args(self, value: str) -> T.List[str]:
-        if self.info.is_windows() and not self.info.is_cygwin() and isinstance(self.linker, ClangClDynamicLinker):
-            return [f'-Wl,/subsystem:{value}']
-        
-        return super().get_win_subsystem_args(value)
-
     @classmethod
     def use_linker_args(cls, linker: str) -> T.List[str]:
         # Clang additionally can use a linker specified as a path, which GCC

mesonbuild/compilers/mixins/gnu.py

@@ -219,20 +219,6 @@ class GnuLikeCompiler(Compiler, metaclass=abc.ABCMeta):
             return ['-mwindows' if value else '-mconsole']
         return []
 
-    def get_win_subsystem_args(self, value: str) -> T.List[str]:
-        args = []
-        if self.info.is_windows() or self.info.is_cygwin():
-            if 'windows' in value:
-                args = ['-Wl,--subsystem,windows']
-            elif 'console' in value:
-                args = ['-Wl,--subsystem,console']
-            else:
-                raise mesonlib.MesonException('Only "windows" and "console" are supported for win_subsystem with MinGW, not "{}".'.format(value))
-        if ',' in value:
-            args[-1] = args[-1] + ':' + value.split(',')[1]
-        return args
-
-
     def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str], build_dir: str) -> T.List[str]:
         for idx, i in enumerate(parameter_list):
             if i[:2] == '-I' or i[:2] == '-L':

mesonbuild/compilers/mixins/visualstudio.py

@@ -205,9 +205,6 @@ class VisualStudioLikeCompiler(Compiler, metaclass=abc.ABCMeta):
         else:
             return ['/SUBSYSTEM:CONSOLE']
 
-    def get_win_subsystem_args(self, value: str) -> T.List[str]:
-        return ['/SUBSYSTEM:' + value.upper()]
-
     def get_pic_args(self) -> T.List[str]:
         return [] # PIC is handled by the loader on Windows
 

mesonbuild/linkers.py

@@ -477,6 +477,11 @@ class DynamicLinker(LinkerEnvVarsMixin, metaclass=abc.ABCMeta):
         # Only used by the Apple linker
         return []
 
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        # Only used if supported by the dynamic linker and
+        # only when targeting Windows
+        return []
+
     def bitcode_args(self) -> T.List[str]:
         raise mesonlib.MesonException('This linker does not support bitcode bundles')
 
@@ -743,6 +748,22 @@ class GnuDynamicLinker(GnuLikeDynamicLinkerMixin, PosixDynamicLinkerMixin, Dynam
 
     """Representation of GNU ld.bfd and ld.gold."""
 
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        m = env.machines[self.for_machine]
+        args = []
+
+        if m.is_windows() or m.is_cygwin():
+            if 'windows' in value:
+                args = ['--subsystem,windows']
+            elif 'console' in value:
+                args = ['--subsystem,console']
+            else:
+                raise mesonlib.MesonException(f'Only "windows" and "console" are supported for win_subsystem with MinGW, not "{value}".')
+        if ',' in value:
+            args[-1] = args[-1] + ':' + value.split(',')[1]
+
+        return self._apply_prefix(args)
+
     def get_accepts_rsp(self) -> bool:
         return True
 
@@ -781,6 +802,13 @@ class LLVMDynamicLinker(GnuLikeDynamicLinkerMixin, PosixDynamicLinkerMixin, Dyna
             return self._apply_prefix('--allow-shlib-undefined')
         return []
 
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        m = env.machines[self.for_machine]
+        if not m.is_windows() or m.is_cygwin():
+            return []
+
+        return self._apply_prefix([f'-subsystem:{value}'])
+
 
 class WASMDynamicLinker(GnuLikeDynamicLinkerMixin, PosixDynamicLinkerMixin, DynamicLinker):
 
@@ -1122,6 +1150,9 @@ class VisualStudioLikeLinkerMixin:
     def get_allow_undefined_args(self) -> T.List[str]:
         return []
 
+    def get_win_subsystem_args(self, value: str) -> T.List[str]:
+        return self._apply_prefix([f'/SUBSYSTEM:{value.upper()}'])
+
     def get_soname_args(self, env: 'Environment', prefix: str, shlib_name: str,
                         suffix: str, soversion: str, darwin_versions: T.Tuple[str, str],
                         is_shared_module: bool) -> T.List[str]: