diff -Naur Vc-0.7.5/cmake/OptimizeForArchitecture.cmake Vc-0.7.5-p/cmake/OptimizeForArchitecture.cmake
--- Vc-0.7.5/cmake/OptimizeForArchitecture.cmake	2015-08-26 15:22:18.000000000 +0200
+++ Vc-0.7.5-p/cmake/OptimizeForArchitecture.cmake	2016-07-05 06:21:17.706382803 +0200
@@ -166,7 +166,7 @@
 endmacro()
 
 macro(OptimizeForArchitecture)
-   set(TARGET_ARCHITECTURE "auto" CACHE STRING "CPU architecture to optimize for. Using an incorrect setting here can result in crashes of the resulting binary because of invalid instructions used.\nSetting the value to \"auto\" will try to optimize for the architecture where cmake is called.\nOther supported values are: \"none\", \"generic\", \"core\", \"merom\" (65nm Core2), \"penryn\" (45nm Core2), \"nehalem\", \"westmere\", \"sandy-bridge\", \"ivy-bridge\", \"haswell\", \"broadwell\", \"atom\", \"k8\", \"k8-sse3\", \"barcelona\", \"istanbul\", \"magny-cours\", \"bulldozer\", \"interlagos\", \"piledriver\", \"AMD 14h\", \"AMD 16h\".")
+   set(TARGET_ARCHITECTURE "none" CACHE STRING "CPU architecture to optimize for. Using an incorrect setting here can result in crashes of the resulting binary because of invalid instructions used.\nSetting the value to \"auto\" will try to optimize for the architecture where cmake is called.\nOther supported values are: \"none\", \"generic\", \"core\", \"merom\" (65nm Core2), \"penryn\" (45nm Core2), \"nehalem\", \"westmere\", \"sandy-bridge\", \"ivy-bridge\", \"haswell\", \"broadwell\", \"atom\", \"k8\", \"k8-sse3\", \"barcelona\", \"istanbul\", \"magny-cours\", \"bulldozer\", \"interlagos\", \"piledriver\", \"AMD 14h\", \"AMD 16h\".")
    set(_force)
    if(NOT _last_target_arch STREQUAL "${TARGET_ARCHITECTURE}")
       message(STATUS "target changed from \"${_last_target_arch}\" to \"${TARGET_ARCHITECTURE}\"")