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config/ac-macros/readline.m4
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AC_DEFUN([DRIZZLE_CHECK_READLINE_DECLARES_HIST_ENTRY], [
 
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AC_DEFUN([MYSQL_CHECK_READLINE_DECLARES_HIST_ENTRY], [
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    AC_CACHE_CHECK([HIST_ENTRY is declared in readline/readline.h], mysql_cv_hist_entry_declared,
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        AC_TRY_COMPILE(
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            [
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    )
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])
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AC_DEFUN([DRIZZLE_CHECK_NEW_RL_INTERFACE], [
 
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AC_DEFUN([MYSQL_CHECK_LIBEDIT_INTERFACE], [
 
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    AC_CACHE_CHECK([libedit variant of rl_completion_entry_function], mysql_cv_libedit_interface,
 
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        AC_TRY_COMPILE(
 
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            [
 
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                #include "stdio.h"
 
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                #include "readline/readline.h"
 
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            ],
 
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            [ 
 
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                char res= *(*rl_completion_entry_function)(0,0);
 
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                completion_matches(0,0);
 
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            ],
 
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            [
 
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                mysql_cv_libedit_interface=yes
 
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                AC_DEFINE_UNQUOTED([USE_LIBEDIT_INTERFACE], [1],
 
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                                   [used libedit interface (can we dereference result of rl_completion_entry_function)])
 
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            ],
 
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            [mysql_cv_libedit_interface=no]
 
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        )
 
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    )
 
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])
 
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AC_DEFUN([MYSQL_CHECK_NEW_RL_INTERFACE], [
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    AC_CACHE_CHECK([defined rl_compentry_func_t and rl_completion_func_t], mysql_cv_new_rl_interface,
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        AC_TRY_COMPILE(
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            [
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dnl check for availability of multibyte characters and functions
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dnl (Based on BASH_CHECK_MULTIBYTE in aclocal.m4 of readline-5.0)
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dnl
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AC_DEFUN([DRIZZLE_CHECK_MULTIBYTE],
 
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AC_DEFUN([MYSQL_CHECK_MULTIBYTE],
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[
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AC_CHECK_HEADERS(wctype.h)
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AC_CHECK_HEADERS(wchar.h)