Drop Python2 support. Round 4

python/dont-make-libpython-readonly.patch

@@ -0,0 +1,13 @@
+diff --git a/Makefile.pre.in b/Makefile.pre.in
+index ce2c0aa..7d6dcf7 100644
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -70,7 +70,7 @@ INSTALL_DATA=	@INSTALL_DATA@
+ # Shared libraries must be installed with executable mode on some systems;
+ # rather than figuring out exactly which, we always give them executable mode.
+ # Also, making them read-only seems to be a good idea...
+-INSTALL_SHARED= ${INSTALL} -m 555
++INSTALL_SHARED= ${INSTALL} -m 755
+ 
+ MKDIR_P=	@MKDIR_P@
+