+diff -urNp -x '*.orig' amanda-3.5.1.org/config/amanda/krb5-security.m4 amanda-3.5.1/config/amanda/krb5-security.m4
+--- amanda-3.5.1.org/config/amanda/krb5-security.m4 2017-12-01 14:26:31.000000000 +0100
++++ amanda-3.5.1/config/amanda/krb5-security.m4 2021-05-08 10:23:14.430132083 +0200
+@@ -61,6 +61,8 @@ AC_DEFUN([AMANDA_KRB5_SECURITY],
+ AMANDA_ADD_LIBS([-lgssapi_krb5 -lkrb5 $K5CRYPTO $K5SUPPORT -lcom_err])
+ break
+ elif test \( -f ${k5libdir}/libkrb5.a -o -f ${k5libdir}/libkrb5.so \) -a \( -f ${k5libdir}/libasn1.a -o -f ${k5libdir}/libasn1.so \) -a \( -f ${k5libdir}/libgssapi.a -o -f ${k5libdir}/libgssapi.so \); then
++ KRB5_DIR_FOUND=$dir
++ KRB5_LIBDIR_FOUND=$k5libdir
+ AMANDA_ADD_LIBS([-lgssapi -lkrb5 -lasn1])
+ AMANDA_ADD_CPPFLAGS([-DKRB5_HEIMDAL_INCLUDES])
+ break