[ruby-dev:39172] Re: [Bug #2000] Change the license to "GPLv2+ or Ruby's original".

Hi,

At Thu, 27 Aug 2009 00:20:03 +0900,
Takahiro Kambe wrote in [ruby-dev:39169]:
> > So please change the Ruby's license to GPLv3 (and GPLv2) compat.
> Another option is make Ruby use older readline library which was GPLv2
> strictly.

A patch followed.

> And you need to know, Ruby's readline module work not only with GNU
> readline but also editline library (contained in *BSD).  So, importing
> editline library is another option.  :-)

However, editline's compatibility is still incomplete a little.
I found it lacks rl_getc declaration and the type of
rl_getc_function differs from GNU readline's one.


Index: ext/readline/extconf.rb
===================================================================
--- ext/readline/extconf.rb	(revision 24680)
+++ ext/readline/extconf.rb	(working copy)
@@ -4,5 +4,5 @@ $readline_headers = ["stdio.h"]
 
 def have_readline_header(header)
-  if have_header(header)
+  if have_header(header, &$readline_extra_check)
     $readline_headers.push(header)
     return true
@@ -25,4 +25,10 @@ dir_config('termcap')
 dir_config("readline")
 enable_libedit = enable_config("libedit")
+$readline_extra_check = (proc {|src| src << <<EOS} unless enable_config("readline-v6"))
+#if RL_VERSION_MAJOR >= 6
+#error GPLv2 incompatible
+#endif
+EOS
+
 have_library("user32", nil) if /cygwin/ === RUBY_PLATFORM
 have_library("ncurses", "tgetnum") ||


-- 
Nobu Nakada