Stating license GPLv3+ if header of libreadline >= 6.x is included

libisoburn/trunk/xorriso/text_io.c

@@ -121,6 +121,24 @@ int Xorriso__shutdown_editline(int flag)
 
 #endif /* Xorriso_with_editlinE */
 
+#ifdef Xorriso_with_readlinE
+
+/* http://lists.gnu.org/archive/html/bug-readline/2014-06/msg00005.html */
+const char *Xorriso__readline_license(int flag)
+{
+#ifdef RL_VERSION_MAJOR
+#if RL_VERSION_MAJOR > 5
+
+ return("GPLv3+");
+
+#endif
+#endif
+
+ return("GPLv2+");
+}
+
+#endif /* Xorriso_with_readlinE */
+
 #ifdef Xorriso_with_line_editoR
 
 char *Xorriso_emul_readline(struct XorrisO *xorriso, int flag)