Fix build problem of CPython 2.7 with Readline 6.3 (#126, #131, #149)

The patch was taken from latest changes in CPython 2.7

* http://hg.python.org/cpython/rev/79b82ebc4fd1
* http://hg.python.org/cpython/rev/5e42e5764ac6
* http://hg.python.org/cpython/rev/0b5b0bfcc7b1

plugins/python-build/share/python-build/patches/2.7.1/Python-2.7.1/002_readline63.patch

@@ -0,0 +1,61 @@
+diff -r -u ../Python-2.7.6.orig/Modules/readline.c ./Modules/readline.c
+--- ../Python-2.7.6.orig/Modules/readline.c	2013-11-10 16:36:41.000000000 +0900
++++ ./Modules/readline.c	2014-03-29 16:17:48.643305752 +0900
+@@ -206,8 +206,7 @@
+     if (!PyArg_ParseTuple(args, buf, &function))
+         return NULL;
+     if (function == Py_None) {
+-        Py_XDECREF(*hook_var);
+-        *hook_var = NULL;
++        Py_CLEAR(*hook_var);
+     }
+     else if (PyCallable_Check(function)) {
+         PyObject *tmp = *hook_var;
+@@ -750,14 +749,22 @@
+ }
+ 
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_startup_hook(void)
++#else
++on_startup_hook()
++#endif
+ {
+     return on_hook(startup_hook);
+ }
+ 
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_pre_input_hook(void)
++#else
++on_pre_input_hook()
++#endif
+ {
+     return on_hook(pre_input_hook);
+ }
+@@ -852,7 +859,7 @@
+  * before calling the normal completer */
+ 
+ static char **
+-flex_complete(char *text, int start, int end)
++flex_complete(const char *text, int start, int end)
+ {
+ #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
+     rl_completion_append_character ='\0';
+@@ -911,12 +918,12 @@
+     rl_bind_key_in_map ('\t', rl_complete, emacs_meta_keymap);
+     rl_bind_key_in_map ('\033', rl_complete, emacs_meta_keymap);
+     /* Set our hook functions */
+-    rl_startup_hook = (Function *)on_startup_hook;
++    rl_startup_hook = on_startup_hook;
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+-    rl_pre_input_hook = (Function *)on_pre_input_hook;
++    rl_pre_input_hook = on_pre_input_hook;
+ #endif
+     /* Set our completion function */
+-    rl_attempted_completion_function = (CPPFunction *)flex_complete;
++    rl_attempted_completion_function = flex_complete;
+     /* Set Python word break characters */
+     completer_word_break_characters =
+         rl_completer_word_break_characters =

plugins/python-build/share/python-build/patches/2.7.2/Python-2.7.2/002_readline63.patch

@@ -0,0 +1,61 @@
+diff -r -u ../Python-2.7.6.orig/Modules/readline.c ./Modules/readline.c
+--- ../Python-2.7.6.orig/Modules/readline.c	2013-11-10 16:36:41.000000000 +0900
++++ ./Modules/readline.c	2014-03-29 16:17:48.643305752 +0900
+@@ -206,8 +206,7 @@
+     if (!PyArg_ParseTuple(args, buf, &function))
+         return NULL;
+     if (function == Py_None) {
+-        Py_XDECREF(*hook_var);
+-        *hook_var = NULL;
++        Py_CLEAR(*hook_var);
+     }
+     else if (PyCallable_Check(function)) {
+         PyObject *tmp = *hook_var;
+@@ -750,14 +749,22 @@
+ }
+ 
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_startup_hook(void)
++#else
++on_startup_hook()
++#endif
+ {
+     return on_hook(startup_hook);
+ }
+ 
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_pre_input_hook(void)
++#else
++on_pre_input_hook()
++#endif
+ {
+     return on_hook(pre_input_hook);
+ }
+@@ -852,7 +859,7 @@
+  * before calling the normal completer */
+ 
+ static char **
+-flex_complete(char *text, int start, int end)
++flex_complete(const char *text, int start, int end)
+ {
+ #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
+     rl_completion_append_character ='\0';
+@@ -911,12 +918,12 @@
+     rl_bind_key_in_map ('\t', rl_complete, emacs_meta_keymap);
+     rl_bind_key_in_map ('\033', rl_complete, emacs_meta_keymap);
+     /* Set our hook functions */
+-    rl_startup_hook = (Function *)on_startup_hook;
++    rl_startup_hook = on_startup_hook;
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+-    rl_pre_input_hook = (Function *)on_pre_input_hook;
++    rl_pre_input_hook = on_pre_input_hook;
+ #endif
+     /* Set our completion function */
+-    rl_attempted_completion_function = (CPPFunction *)flex_complete;
++    rl_attempted_completion_function = flex_complete;
+     /* Set Python word break characters */
+     completer_word_break_characters =
+         rl_completer_word_break_characters =

plugins/python-build/share/python-build/patches/2.7.3/Python-2.7.3/002_readline63.patch

@@ -0,0 +1,61 @@
+diff -r -u ../Python-2.7.6.orig/Modules/readline.c ./Modules/readline.c
+--- ../Python-2.7.6.orig/Modules/readline.c	2013-11-10 16:36:41.000000000 +0900
++++ ./Modules/readline.c	2014-03-29 16:17:48.643305752 +0900
+@@ -206,8 +206,7 @@
+     if (!PyArg_ParseTuple(args, buf, &function))
+         return NULL;
+     if (function == Py_None) {
+-        Py_XDECREF(*hook_var);
+-        *hook_var = NULL;
++        Py_CLEAR(*hook_var);
+     }
+     else if (PyCallable_Check(function)) {
+         PyObject *tmp = *hook_var;
+@@ -750,14 +749,22 @@
+ }
+ 
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_startup_hook(void)
++#else
++on_startup_hook()
++#endif
+ {
+     return on_hook(startup_hook);
+ }
+ 
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_pre_input_hook(void)
++#else
++on_pre_input_hook()
++#endif
+ {
+     return on_hook(pre_input_hook);
+ }
+@@ -852,7 +859,7 @@
+  * before calling the normal completer */
+ 
+ static char **
+-flex_complete(char *text, int start, int end)
++flex_complete(const char *text, int start, int end)
+ {
+ #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
+     rl_completion_append_character ='\0';
+@@ -911,12 +918,12 @@
+     rl_bind_key_in_map ('\t', rl_complete, emacs_meta_keymap);
+     rl_bind_key_in_map ('\033', rl_complete, emacs_meta_keymap);
+     /* Set our hook functions */
+-    rl_startup_hook = (Function *)on_startup_hook;
++    rl_startup_hook = on_startup_hook;
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+-    rl_pre_input_hook = (Function *)on_pre_input_hook;
++    rl_pre_input_hook = on_pre_input_hook;
+ #endif
+     /* Set our completion function */
+-    rl_attempted_completion_function = (CPPFunction *)flex_complete;
++    rl_attempted_completion_function = flex_complete;
+     /* Set Python word break characters */
+     completer_word_break_characters =
+         rl_completer_word_break_characters =

plugins/python-build/share/python-build/patches/2.7.4/Python-2.7.4/002_readline63.patch

@@ -0,0 +1,61 @@
+diff -r -u ../Python-2.7.6.orig/Modules/readline.c ./Modules/readline.c
+--- ../Python-2.7.6.orig/Modules/readline.c	2013-11-10 16:36:41.000000000 +0900
++++ ./Modules/readline.c	2014-03-29 16:17:48.643305752 +0900
+@@ -206,8 +206,7 @@
+     if (!PyArg_ParseTuple(args, buf, &function))
+         return NULL;
+     if (function == Py_None) {
+-        Py_XDECREF(*hook_var);
+-        *hook_var = NULL;
++        Py_CLEAR(*hook_var);
+     }
+     else if (PyCallable_Check(function)) {
+         PyObject *tmp = *hook_var;
+@@ -750,14 +749,22 @@
+ }
+ 
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_startup_hook(void)
++#else
++on_startup_hook()
++#endif
+ {
+     return on_hook(startup_hook);
+ }
+ 
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_pre_input_hook(void)
++#else
++on_pre_input_hook()
++#endif
+ {
+     return on_hook(pre_input_hook);
+ }
+@@ -852,7 +859,7 @@
+  * before calling the normal completer */
+ 
+ static char **
+-flex_complete(char *text, int start, int end)
++flex_complete(const char *text, int start, int end)
+ {
+ #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
+     rl_completion_append_character ='\0';
+@@ -911,12 +918,12 @@
+     rl_bind_key_in_map ('\t', rl_complete, emacs_meta_keymap);
+     rl_bind_key_in_map ('\033', rl_complete, emacs_meta_keymap);
+     /* Set our hook functions */
+-    rl_startup_hook = (Function *)on_startup_hook;
++    rl_startup_hook = on_startup_hook;
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+-    rl_pre_input_hook = (Function *)on_pre_input_hook;
++    rl_pre_input_hook = on_pre_input_hook;
+ #endif
+     /* Set our completion function */
+-    rl_attempted_completion_function = (CPPFunction *)flex_complete;
++    rl_attempted_completion_function = flex_complete;
+     /* Set Python word break characters */
+     completer_word_break_characters =
+         rl_completer_word_break_characters =

plugins/python-build/share/python-build/patches/2.7.5/Python-2.7.5/002_readline63.patch

@@ -0,0 +1,61 @@
+diff -r -u ../Python-2.7.6.orig/Modules/readline.c ./Modules/readline.c
+--- ../Python-2.7.6.orig/Modules/readline.c	2013-11-10 16:36:41.000000000 +0900
++++ ./Modules/readline.c	2014-03-29 16:17:48.643305752 +0900
+@@ -206,8 +206,7 @@
+     if (!PyArg_ParseTuple(args, buf, &function))
+         return NULL;
+     if (function == Py_None) {
+-        Py_XDECREF(*hook_var);
+-        *hook_var = NULL;
++        Py_CLEAR(*hook_var);
+     }
+     else if (PyCallable_Check(function)) {
+         PyObject *tmp = *hook_var;
+@@ -750,14 +749,22 @@
+ }
+ 
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_startup_hook(void)
++#else
++on_startup_hook()
++#endif
+ {
+     return on_hook(startup_hook);
+ }
+ 
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_pre_input_hook(void)
++#else
++on_pre_input_hook()
++#endif
+ {
+     return on_hook(pre_input_hook);
+ }
+@@ -852,7 +859,7 @@
+  * before calling the normal completer */
+ 
+ static char **
+-flex_complete(char *text, int start, int end)
++flex_complete(const char *text, int start, int end)
+ {
+ #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
+     rl_completion_append_character ='\0';
+@@ -911,12 +918,12 @@
+     rl_bind_key_in_map ('\t', rl_complete, emacs_meta_keymap);
+     rl_bind_key_in_map ('\033', rl_complete, emacs_meta_keymap);
+     /* Set our hook functions */
+-    rl_startup_hook = (Function *)on_startup_hook;
++    rl_startup_hook = on_startup_hook;
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+-    rl_pre_input_hook = (Function *)on_pre_input_hook;
++    rl_pre_input_hook = on_pre_input_hook;
+ #endif
+     /* Set our completion function */
+-    rl_attempted_completion_function = (CPPFunction *)flex_complete;
++    rl_attempted_completion_function = flex_complete;
+     /* Set Python word break characters */
+     completer_word_break_characters =
+         rl_completer_word_break_characters =

plugins/python-build/share/python-build/patches/2.7.6/Python-2.7.6/002_readline63.patch

@@ -0,0 +1,61 @@
+diff -r -u ../Python-2.7.6.orig/Modules/readline.c ./Modules/readline.c
+--- ../Python-2.7.6.orig/Modules/readline.c	2013-11-10 16:36:41.000000000 +0900
++++ ./Modules/readline.c	2014-03-29 16:17:48.643305752 +0900
+@@ -206,8 +206,7 @@
+     if (!PyArg_ParseTuple(args, buf, &function))
+         return NULL;
+     if (function == Py_None) {
+-        Py_XDECREF(*hook_var);
+-        *hook_var = NULL;
++        Py_CLEAR(*hook_var);
+     }
+     else if (PyCallable_Check(function)) {
+         PyObject *tmp = *hook_var;
+@@ -750,14 +749,22 @@
+ }
+ 
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_startup_hook(void)
++#else
++on_startup_hook()
++#endif
+ {
+     return on_hook(startup_hook);
+ }
+ 
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_pre_input_hook(void)
++#else
++on_pre_input_hook()
++#endif
+ {
+     return on_hook(pre_input_hook);
+ }
+@@ -852,7 +859,7 @@
+  * before calling the normal completer */
+ 
+ static char **
+-flex_complete(char *text, int start, int end)
++flex_complete(const char *text, int start, int end)
+ {
+ #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
+     rl_completion_append_character ='\0';
+@@ -911,12 +918,12 @@
+     rl_bind_key_in_map ('\t', rl_complete, emacs_meta_keymap);
+     rl_bind_key_in_map ('\033', rl_complete, emacs_meta_keymap);
+     /* Set our hook functions */
+-    rl_startup_hook = (Function *)on_startup_hook;
++    rl_startup_hook = on_startup_hook;
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+-    rl_pre_input_hook = (Function *)on_pre_input_hook;
++    rl_pre_input_hook = on_pre_input_hook;
+ #endif
+     /* Set our completion function */
+-    rl_attempted_completion_function = (CPPFunction *)flex_complete;
++    rl_attempted_completion_function = flex_complete;
+     /* Set Python word break characters */
+     completer_word_break_characters =
+         rl_completer_word_break_characters =

plugins/python-build/share/python-build/patches/2.7/Python-2.7/002_readline63.patch

@@ -0,0 +1,61 @@
+diff -r -u ../Python-2.7.6.orig/Modules/readline.c ./Modules/readline.c
+--- ../Python-2.7.6.orig/Modules/readline.c	2013-11-10 16:36:41.000000000 +0900
++++ ./Modules/readline.c	2014-03-29 16:17:48.643305752 +0900
+@@ -206,8 +206,7 @@
+     if (!PyArg_ParseTuple(args, buf, &function))
+         return NULL;
+     if (function == Py_None) {
+-        Py_XDECREF(*hook_var);
+-        *hook_var = NULL;
++        Py_CLEAR(*hook_var);
+     }
+     else if (PyCallable_Check(function)) {
+         PyObject *tmp = *hook_var;
+@@ -750,14 +749,22 @@
+ }
+ 
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_startup_hook(void)
++#else
++on_startup_hook()
++#endif
+ {
+     return on_hook(startup_hook);
+ }
+ 
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+ static int
++#if defined(_RL_FUNCTION_TYPEDEF)
+ on_pre_input_hook(void)
++#else
++on_pre_input_hook()
++#endif
+ {
+     return on_hook(pre_input_hook);
+ }
+@@ -852,7 +859,7 @@
+  * before calling the normal completer */
+ 
+ static char **
+-flex_complete(char *text, int start, int end)
++flex_complete(const char *text, int start, int end)
+ {
+ #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
+     rl_completion_append_character ='\0';
+@@ -911,12 +918,12 @@
+     rl_bind_key_in_map ('\t', rl_complete, emacs_meta_keymap);
+     rl_bind_key_in_map ('\033', rl_complete, emacs_meta_keymap);
+     /* Set our hook functions */
+-    rl_startup_hook = (Function *)on_startup_hook;
++    rl_startup_hook = on_startup_hook;
+ #ifdef HAVE_RL_PRE_INPUT_HOOK
+-    rl_pre_input_hook = (Function *)on_pre_input_hook;
++    rl_pre_input_hook = on_pre_input_hook;
+ #endif
+     /* Set our completion function */
+-    rl_attempted_completion_function = (CPPFunction *)flex_complete;
++    rl_attempted_completion_function = flex_complete;
+     /* Set Python word break characters */
+     completer_word_break_characters =
+         rl_completer_word_break_characters =