Bump version number

configure.ac

 ## ExampleLib Example: an example of using Automake to link with a library
 
-AC_INIT([freetype-gl], [1.7], [bernd@net2o.de], [freetype-gl for Linux/Android],
+AC_INIT([freetype-gl], [1.8], [bernd@net2o.de], [freetype-gl for Linux/Android],
         [https://github.com/forthy42/freetype-gl])
 AC_PREREQ([2.59])
 AM_INIT_AUTOMAKE([1.10 -Wall no-define])
@@ -35,7 +35,5 @@ PRECLANG=${PRECC%clang*}
 AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
 AC_SUBST(LIBTOOL)
 
-AC_CONFIG_FILES([Makefile])
-AC_CONFIG_FILES([debian/control])
-AC_CONFIG_FILES([debian/changelog])
+AC_CONFIG_FILES([Makefile debian/control debian/changelog])
 AC_OUTPUT