Merge pull request #37751 from varungandhi-apple/vg-fix-xcode-config-flag

Add missing --config flag when building with --xcode.

Author: varungandhi-apple

utils/swift_build_support/swift_build_support/products/cmake_product.py

@@ -68,7 +68,7 @@ def build_with_cmake(self, build_targets, build_type, build_args):
 
                 # Xcode can't restart itself if it turns out we need to reconfigure.
                 # Do an advance build to handle that.
-                shell.call(cmake_build + [self.build_dir, build_type])
+                shell.call(cmake_build + [self.build_dir, "--config", build_type])
 
             shell.call(cmake_build + [self.build_dir, "--config", build_type, "--"]
                        + build_args + build_targets)