[buildcore] Windows fixes

deps/buildcore/scripts/setup-build.py

@@ -84,7 +84,7 @@ def main() -> int:
     build_dir = f'{project_dir}/{args.build_root}/{build_config}'
     util.rm(build_dir)
     cmake_cmd = [
-        'cmake', '-S', project_dir, '-B', build_dir, build_tool,
+        'cmake', '-S', project_dir, '-B', build_dir,
         '-DCMAKE_EXPORT_COMPILE_COMMANDS=ON',
         '-DCMAKE_TOOLCHAIN_FILE={:s}'.format(args.toolchain),
         '-DCMAKE_BUILD_TYPE={:s}'.format(build_type_arg),
@@ -92,6 +92,8 @@ def main() -> int:
         '-DBUILDCORE_BUILD_CONFIG={:s}'.format(build_config),
         '-DBUILDCORE_TARGET={:s}'.format(args.target),
     ]
+    if build_tool != '':
+        cmake_cmd.append(build_tool)
     if qt_path != '':
         cmake_cmd.append(qt_path)
     if platform.system() == 'Windows':