diff --git a/libcxx/CMakeLists.txt b/libcxx/CMakeLists.txt
--- a/libcxx/CMakeLists.txt
+++ b/libcxx/CMakeLists.txt
@@ -779,6 +779,10 @@
     # (e.g. `printfw`/`scanfw`)
     target_link_libraries(${target} PRIVATE iso_stdio_wide_specifiers)
   endif()
+
+  if (ANDROID AND ANDROID_PLATFORM_LEVEL LESS 21)
+    target_link_libraries(${target} PUBLIC android_support)
+  endif()
 endfunction()
 
 # Windows-related flags =======================================================
diff --git a/libcxxabi/src/CMakeLists.txt b/libcxxabi/src/CMakeLists.txt
--- a/libcxxabi/src/CMakeLists.txt
+++ b/libcxxabi/src/CMakeLists.txt
@@ -95,6 +95,9 @@
   # MINGW_LIBRARIES is defined in config-ix.cmake
   list(APPEND LIBCXXABI_LIBRARIES ${MINGW_LIBRARIES})
 endif()
+if (ANDROID AND ANDROID_PLATFORM_LEVEL LESS 21)
+  list(APPEND LIBCXXABI_LIBRARIES android_support)
+endif()
 
 if (NOT LIBCXXABI_USE_COMPILER_RT)
   add_library_flags_if(LIBCXXABI_HAS_GCC_LIB gcc)