--- CMakeLists.txt.orig	2021-06-22 13:38:39 UTC
+++ CMakeLists.txt
@@ -28,7 +28,7 @@ include (OptimizeForArchitecture)
 
 vc_determine_compiler()
 
-if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(i686|x86|AMD64|amd64)")
+if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(i[3-6]86|x86|AMD64|amd64)")
    set(Vc_X86 TRUE)
 elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(arm|aarch32|aarch64)")
    message(WARNING "No optimized implementation of the Vc types available for ${CMAKE_SYSTEM_PROCESSOR}")
