File guile-3.0.patch of Package gnubik

--- configure.ac.orig	2021-09-17 09:54:04.675417142 -0500
+++ configure.ac	2021-09-17 09:52:18.980421883 -0500
@@ -70,7 +70,7 @@
 
 
 dnl Checks for libraries.
-PKG_CHECK_MODULES(GUILE, guile-2.0,,
+PKG_CHECK_MODULES(GUILE, guile-3.0,,
   AC_SEARCH_LIBS([scm_c_string_length], [guile],,
 	AC_MSG_ERROR("Guile 2.0 or later is required"))
 )