File support-guile-3.0.patch of Package guile-newt

commit ee02ff6b76cca76d77b8664b4d0d376e2c13e644 (HEAD -> master)
Author: Jonathan Brielmaier <jbrielmaier@suse.de>
Date:   Mon Jan 13 23:23:01 2020 +0100

    Add support for Guile 3.0.
    
    * configure.ac (GUILE_PKG): Add Guile 3.0.

diff --git a/configure.ac b/configure.ac
index 473c517..a77351e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,7 +9,7 @@ AM_INIT_AUTOMAKE([-Wall -Werror foreign color-tests])
 dnl Enable silent rules by default.
 AM_SILENT_RULES([yes])
 
-GUILE_PKG([2.2 2.0])
+GUILE_PKG([3.0 2.2 2.0])
 GUILE_PROGS
 
 dnl (srfi srfi-64) appeared in Guile 2.0.11.