playbook: Fix up flex setup (solve aarch64)

obs/slapos/debian/changelog

+slapos-node (1.3.18+1.0.42+2) unstable; urgency=low
+
+  * New version of slapos (1.3.18+1.0.42+2)
+
+ -- Rafael Monnerat <rafael@nexedi.com>  Fri, 04 Nov 2016 18:04:09 +0100
+
 slapos-node (1.3.18+1.0.42+1) unstable; urgency=low
 
   * New version of slapos (1.3.18+1.0.42+1)

obs/slapos/release_configuration.sh

@@ -7,7 +7,7 @@ VERSION=1.3.18
 # Edit for release
 RECIPE_VERSION=1.0.42
 # Edit for release
-RELEASE=1
+RELEASE=2
 
 CURRENT_DIRECTORY="$(pwd)"
 # Development Section

obs/slapos/slapos-node/slapos/buildout.cfg.in

@@ -58,14 +58,12 @@ environment +=
 
 [dbus-python]
 pre-configure =
-  sed -i 's#!/opt/slapos/parts/python2.7/bin/python2.7#!${python2.7:location}/bin/python2.7#' ${python2.7:location}/bin/python-config
   sed -i 's#/opt/slapos/parts/dbus/lib/libdbus-1.la#${dbus:location}/lib/libdbus-1.la#' ${dbus-glib:location}/lib/libdbus-glib-1.la
 environment +=
   LD_LIBRARY_PATH=${dbus:location}/lib
   LDFLAGS=-L${glib:location}/lib -Wl,-rpath=${glib:location}/lib -L${dbus:location}/lib -Wl,-rpath=${dbus:location}/lib
 post-install =
   sed -i 's#${dbus:location}/lib/libdbus-1.la#/opt/slapos/parts/dbus/lib/libdbus-1.la#' ${dbus-glib:location}/lib/libdbus-glib-1.la
-  sed -i 's#!${python2.7:location}/bin/python2.7#!/opt/slapos/parts/python2.7/bin/python2.7#' ${python2.7:location}/bin/python-config
 
 [openssl]
 # HTTPS is not work on debian 6 where the package is originally
@@ -122,10 +120,8 @@ configure-options =
   --enable-rpath
 
 [flex]
-url = http://downloads.sourceforge.net/project/flex/flex/flex-2.5.35/flex-2.5.35.tar.gz
-md5sum = 201d3f38758d95436cbc64903386de0b
-environment =
-  M4=${m4:location}/bin/m4
+environment +=
+ BISON_PKGDATADIR=${bison:location}/share/bison/
 
 [versions]
 cliff = 1.4.5