gnucash: improved to enable aqbanking support if possible

office/gnucash/gnucash.conf

@@ -19,3 +19,8 @@ hook_add preconf 9 "autoreconf -v -I $(pkgprefix -r datadir gconf)/aclocal"
 
 # disable treating compile warnings as errors
 # var_append extraconfopt ' ' '--disable-error-on-warning'
+
+# AqBanking support (obsoletes --enable-hbci)
+if pkginstalled -f aqbanking; then
+	var_append extraconfopt ' ' '--enable-aqbanking'
+fi