diff --git a/VirtualBox.spec b/VirtualBox.spec
index 811f098..53bdd2f 100644
--- a/VirtualBox.spec
+++ b/VirtualBox.spec
@@ -17,8 +17,8 @@
 %endif
 
 Name:          VirtualBox
-Version:       5.1.4
-Release:       2mamba
+Version:       5.1.6
+Release:       1mamba
 Summary:       A general-purpose full virtualizer for x86 hardware
 Group:         Graphical Desktop/Applications/Utilities
 Vendor:        openmamba
@@ -42,7 +42,6 @@ Patch5:        VirtualBox-4.3.26-vdfuse.patch
 Patch6:        VirtualBox-5.0.4-x86-upstream-buildfixes.patch
 Patch7:        VirtualBox-5.0.24-build-gsoap.patch
 Patch8:        VirtualBox-5.0.24-ogl-include-path.patch
-
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -183,11 +182,11 @@ VBOX_WITH_VALIDATIONKIT=
 #VBOX_VERSION_STRING=\$(VBOX_VERSION_MAJOR).\$(VBOX_VERSION_MINOR).\$(VBOX_VERSION_BUILD)_openmamba
 VBOX_JAVA_HOME=%{_jvmdir}/jdk
 # fix gsoap missing zlib include and produce errors with --as-needed
-VBOX_GSOAP_CXX_LIBS := gsoapssl++ z
+VBOX_GSOAP_CXX_LIBS=gsoapssl++ z
 # use system xorg
-VBOX_USE_SYSTEM_XORG_HEADERS = 1
+VBOX_USE_SYSTEM_XORG_HEADERS=1
 # no update request
-VBOX_WITH_UPDATE_REQUEST := 0
+VBOX_WITH_UPDATE_REQUEST=
 VBOX_GCC_OPT=%{optflags}" > LocalConfig.kmk
 
 %build
@@ -203,6 +202,9 @@ export CXXFLAGS="%optflags"
    --with-gcc=%{_host}-gcc \
    --with-g++=%{_host}-g++ \
    --enable-vnc \
+%ifnarch x86_64
+   --disable-python \
+%endif
 %if "%{stage1}" == "1"
    --disable-java
 %endif
@@ -214,7 +216,8 @@ export CXXFLAGS="%optflags"
 
 . ./env.sh
 
-kmk %{?_smp_mflags} EB_LD=ld.bfd
+kmk %{?_smp_mflags} CPPFLAGS="%{optflags} -fpermissive"
+# EB_LD=ld.bfd
 #	|| true
 
 ## workaround
@@ -657,6 +660,9 @@ fi
 %{_prefix}/src/vboxvideo-%{version}/*
 
 %changelog
+* Tue Sep 13 2016 Automatic Build System <autodist@mambasoft.it> 5.1.6-1mamba
+- automatic version update by autodist
+
 * Sun Aug 21 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 5.1.4-2mamba
 - remove custom VBOX_VERSION_STRING to fix built-in extensions loading