Index: runtime/compiler-rt/Makefile
===================================================================
--- runtime/compiler-rt/Makefile
+++ runtime/compiler-rt/Makefile
@@ -89,8 +89,10 @@
 endif
 
 ifneq ($(IOS_SDK),)
+ifneq (,$(filter ARM AARCH64,$(TARGETS_TO_BUILD)))
 RuntimeLibrary.darwin.Configs += cc_kext_ios.a
 endif
+endif
 
 ifneq ($(IOSSIM_SDK),)
 RuntimeLibrary.darwin.Configs += asan_iossim_dynamic.dylib \