build: disable gz compression for release tarballs

We have been using gz as a fallback for a long time. By now every system
unpacking the efl tarballs should be capable of using xz. Having only
one file will not onyl save space but also ease the release handling.

diff --git a/configure.ac b/configure.ac
index 7a57bea..5ace27c 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -15,7 +15,7 @@ AH_BOTTOM([
 ])
 
 
-AM_INIT_AUTOMAKE([1.6 dist-xz -Wall color-tests subdir-objects])
+AM_INIT_AUTOMAKE([1.6 dist-xz no-dist-gzip -Wall color-tests subdir-objects])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 # Due to a bug in automake 1.14 we need to use this after AM_INIT_AUTOMAKE