diff --git a/python3-ac_fixes.patch b/python3-ac_fixes.patch
index b005cdd..3568002 100644
--- a/python3-ac_fixes.patch
+++ b/python3-ac_fixes.patch
@@ -1,6 +1,6 @@
 --- Python-3.6.2/configure.ac~	2017-07-08 05:33:27.000000000 +0200
 +++ Python-3.6.2/configure.ac	2017-08-07 10:28:44.498951134 +0200
-@@ -1494,26 +1494,7 @@ then
+@@ -1491,24 +1491,7 @@ then
              CFLAGS_ALIASING="-fno-strict-aliasing"
          fi
  
@@ -22,9 +22,8 @@
 -	    OPT="-O3 -Wall"
 -	    ;;
 -	esac
--
--	OPT="$OPT $STRICT_PROTO"
-+	OPT="$OPT $CPPFLAGS $CFLAGS $STRICT_PROTO"
++	OPT="$OPT $CPPFLAGS $CFLAGS"
  
  	case $ac_sys_system in
  	    SCO_SV*) OPT="$OPT -m486 -DSCO5"
+
diff --git a/python3.spec b/python3.spec
index 3da5ed6..b0d1557 100644
--- a/python3.spec
+++ b/python3.spec
@@ -5,6 +5,7 @@
 %bcond_without	tkinter			# disables tkinter module building
 %bcond_without	tests			# disables Python testing
 %bcond_with	verbose_tests		# runs tests in verbose mode
+%bcond_with	optimizations		# optimitations
 #
 # tests which will not work on 64-bit platforms
 %define		no64bit_tests	test_audioop test_rgbimg test_imageop
@@ -17,6 +18,7 @@
 #   test_time: test_AsTimeval (test.test_time.TestCPyTime), rounding error
 %ifarch x32
 %define		broken_tests_x32	test_time
+%undefine	with_optimizations
 %endif
 %define		broken_tests	test_nntplib test_gdb test_site test_ssl %{?broken_tests_x32}
 
@@ -38,13 +40,13 @@ Summary(ru.UTF-8):	Язык программирования очень высо
 Summary(tr.UTF-8):	X arayüzlü, yüksek düzeyli, kabuk yorumlayıcı dili
 Summary(uk.UTF-8):	Мова програмування дуже високого рівня з X-інтерфейсом
 Name:		python3
-Version:	%{py_ver}.5
-Release:	3
+Version:	%{py_ver}.6
+Release:	2
 Epoch:		1
 License:	PSF
 Group:		Development/Languages/Python
 Source0:	https://www.python.org/ftp/python/%{version}/Python-%{version}.tar.xz
-# Source0-md5:	9f49654a4d6f733ff3284ab9d227e9fd
+# Source0-md5:	c3f30a0aff425dda77d19e02f420d6ba
 Source1:	pyconfig.h.in
 Patch0:		%{name}-pythonpath.patch
 Patch1:		%{name}-ac_fixes.patch
@@ -531,7 +533,11 @@ fi
 	--with-system-expat \
 	--with-system-ffi \
 	%{?with_system_mpdecimal:--with-system-libmpdec} \
-	--with-threads
+	--with-threads \
+%if %{with optimizations}
+	--enable-optimizations \
+	--with-lto
+%endif
 
 %{__make} 2>&1 | awk '
 BEGIN { fail = 0; logmsg = ""; }