Don't build clangd for mingw

... to workaround mingw GCC bug.

Bug: 115807768
Change-Id: Ie75198115542e5ebdf3da3e225adf1a9ca887970
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c3137ad..ba018e9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,11 @@
 add_subdirectory(clang-doc)
 add_subdirectory(clang-query)
 add_subdirectory(clang-move)
+
+if ( NOT MINGW )
 add_subdirectory(clangd)
+endif()
+
 add_subdirectory(include-fixer)
 add_subdirectory(pp-trace)
 add_subdirectory(tool-template)