diff --git a/llvm/cmake/modules/AddLLVM.cmake b/llvm/cmake/modules/AddLLVM.cmake
index 54a54db338e69..fbf11905d52f3 100644
--- a/llvm/cmake/modules/AddLLVM.cmake
+++ b/llvm/cmake/modules/AddLLVM.cmake
@@ -635,6 +635,14 @@ function(llvm_add_library name)
     set(ARG_STATIC)
   endif()
 
+  if(EMSCRIPTEN)
+    # Emscripten's support for dynamic linking is limited
+    # so force all libraries to be statically linked.
+    set(ARG_MODULE FALSE)
+    set(ARG_SHARED FALSE)
+    set(ARG_STATIC TRUE)
+  endif()
+
   if(ARG_MODULE)
     add_library(${name} MODULE ${ALL_FILES})
   elseif(ARG_SHARED)