Generalize gnulike-targeting-windows checks.

Replace several checks against GCC_MINGW or (GCC_MINGW, GCC_CYGWIN) with
is_windows_compiler instead, so that clang and other gcc-like compilers
using MinGW work appropriately with vs_module_defs, c_winlibs, and
cpp_winlibs.

Fixes #4434.

1 files changed, 2 insertions, 2 deletions

diff --git a/mesonbuild/compilers/compilers.py b/mesonbuild/compilers/compilers.py
index 68fbbfa..137b3f7 100644
--- a/mesonbuild/compilers/compilers.py
+++ b/mesonbuild/compilers/compilers.py
@@ -1482,13 +1482,13 @@ class GnuCompiler(GnuLikeCompiler):
             raise RuntimeError('Module definitions file should be str')
         # On Windows targets, .def files may be specified on the linker command
         # line like an object file.
-        if self.compiler_type in (CompilerType.GCC_CYGWIN, CompilerType.GCC_MINGW):
+        if self.compiler_type.is_windows_compiler:
             return [defsfile]
         # For other targets, discard the .def file.
         return []
 
     def get_gui_app_args(self, value):
-        if self.compiler_type in (CompilerType.GCC_CYGWIN, CompilerType.GCC_MINGW) and value:
+        if self.compiler_type.is_windows_compiler and value:
             return ['-mwindows']
         return []