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Viewing changes to m4/pandora_have_libreadline.m4

  • Committer: Brian Aker
  • Date: 2009-11-25 07:05:58 UTC
  • mfrom: (1192.3.39 pandora-build)
  • Revision ID: brian@gaz-20091125070558-mzf1m5etiwb841jb
Merge Monty

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m4/pandora_have_libreadline.m4
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##### http://autoconf-archive.cryp.to/vl_lib_readline.html
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#
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# SYNOPSIS
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#
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#   VL_LIB_READLINE
 
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#   PANDORA_HAVE_LIBREADLINE
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#
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# DESCRIPTION
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#
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#
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# LAST MODIFICATION
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#
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#   2002-04-04
 
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#   2009-11-17
 
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#
 
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# Based on VL_LIB_READLINE from  Ville Laurikari
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#
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# COPYLEFT
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#
 
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#   Copyright (c) 2009 Monty Taylor
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#   Copyright (c) 2002 Ville Laurikari <vl@iki.fi>
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#
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#   Copying and distribution of this file, with or without
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#   modification, are permitted in any medium without royalty provided
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#   the copyright notice and this notice are preserved.
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AC_DEFUN([VL_LIB_READLINE], [
 
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AC_DEFUN([PANDORA_CHECK_TIOCGWINSZ],[
 
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  AC_CACHE_CHECK([for TIOCGWINSZ in sys/ioctl.h],
 
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    [pandora_cv_tiocgwinsz_in_ioctl],[
 
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    AC_COMPILE_IFELSE([
 
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      AC_LANG_PROGRAM([[
 
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#include <sys/types.h>
 
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#include <sys/ioctl.h>
 
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      ]],[[
 
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int x= TIOCGWINSZ;
 
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      ]])
 
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    ],[
 
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      pandora_cv_tiocgwinsz_in_ioctl=yes
 
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    ],[
 
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      pandora_cv_tiocgwinsz_in_ioctl=no
 
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    ])
 
81
  ])
 
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  AS_IF([test "$pandora_cv_tiocgwinsz_in_ioctl" = "yes"],[   
 
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    AC_DEFINE([GWINSZ_IN_SYS_IOCTL], [1],
 
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              [READLINE: your system defines TIOCGWINSZ in sys/ioctl.h.])
 
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  ])
 
86
])
 
87
 
 
88
AC_DEFUN([PANDORA_CHECK_RL_COMPENTRY], [
 
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  AC_CACHE_CHECK([defined rl_compentry_func_t], [pandora_cv_rl_compentry],[
 
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    AC_COMPILE_IFELSE([
 
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      AC_LANG_PROGRAM([[
 
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#include "stdio.h"
 
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#include "readline/readline.h"
 
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      ]],[[
 
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rl_compentry_func_t *func2= (rl_compentry_func_t*)0;
 
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      ]])
 
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    ],[
 
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      pandora_cv_rl_compentry=yes
 
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    ],[
 
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      pandora_cv_rl_compentry=no
 
101
    ])
 
102
  ])
 
103
  AS_IF([test "$pandora_cv_rl_compentry" = "yes"],[
 
104
    AC_DEFINE([HAVE_RL_COMPENTRY], [1],
 
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              [Does system provide rl_compentry_func_t])
 
106
  ])
 
107
 
 
108
  AC_LANG_PUSH(C++)
 
109
  save_CXXFLAGS="${CXXFLAGS}"
 
110
  CXXFLAGS="${AM_CXXFLAGS} ${CXXFLAGS}"
 
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  AC_CACHE_CHECK([rl_compentry_func_t works], [pandora_cv_rl_compentry_works],[
 
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    AC_COMPILE_IFELSE([
 
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      AC_LANG_PROGRAM([[
 
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#include "stdio.h"
 
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#include "readline/readline.h"
 
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      ]],[[
 
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rl_completion_entry_function= (rl_compentry_func_t*)NULL;
 
118
      ]])
 
119
    ],[
 
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      pandora_cv_rl_compentry_works=yes
 
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    ],[
 
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      pandora_cv_rl_compentry_works=no
 
123
    ])
 
124
  ])
 
125
  AS_IF([test "$pandora_cv_rl_compentry_works" = "yes"],[
 
126
    AC_DEFINE([HAVE_WORKING_RL_COMPENTRY], [1],
 
127
              [Does system provide an rl_compentry_func_t that is usable])
 
128
  ])
 
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  CXXFLAGS="${save_CXXFLAGS}"
 
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  AC_LANG_POP()
 
131
])
 
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133
 
 
134
AC_DEFUN([PANDORA_CHECK_RL_COMPLETION_FUNC], [
 
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  AC_CACHE_CHECK([defined rl_completion_func_t], [pandora_cv_rl_completion],[
 
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    AC_COMPILE_IFELSE([
 
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      AC_LANG_PROGRAM([[
 
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#include "stdio.h"
 
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#include "readline/readline.h"
 
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      ]],[[
 
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rl_completion_func_t *func1= (rl_completion_func_t*)0;
 
142
      ]])
 
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    ],[
 
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      pandora_cv_rl_completion=yes
 
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    ],[
 
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      pandora_cv_rl_completion=no
 
147
    ])
 
148
  ])
 
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  AS_IF([test "$pandora_cv_rl_completion" = "yes"],[
 
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    AC_DEFINE([HAVE_RL_COMPLETION], [1],
 
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              [Does system provide rl_completion_func_t])
 
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  ])
 
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])
 
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AC_DEFUN([_PANDORA_SEARCH_LIBREADLINE], [
 
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  save_LIBS="${LIBS}"
 
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  LIBS=""
 
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  AC_CACHE_CHECK([for a readline compatible library],
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                 vl_cv_lib_readline, [
 
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                 ac_cv_libreadline, [
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    ORIG_LIBS="$LIBS"
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    for readline_lib in readline edit editline; do
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      for termcap_lib in "" termcap curses ncurses; do
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          TRY_LIB="-l$readline_lib -l$termcap_lib"
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        fi
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        LIBS="$ORIG_LIBS $TRY_LIB"
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        AC_TRY_LINK_FUNC(readline, vl_cv_lib_readline="$TRY_LIB")
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        if test -n "$vl_cv_lib_readline"; then
 
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        AC_TRY_LINK_FUNC(readline, ac_cv_libreadline="$TRY_LIB")
 
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        if test -n "$ac_cv_libreadline"; then
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          break
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        fi
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      done
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      if test -n "$vl_cv_lib_readline"; then
 
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      if test -n "$ac_cv_libreadline"; then
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        break
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      fi
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    done
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    if test -z "$vl_cv_lib_readline"; then
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      vl_cv_lib_readline="no"
 
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    if test -z "$ac_cv_libreadline"; then
 
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      ac_cv_libreadline="no"
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      LIBS="$ORIG_LIBS"
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    fi
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  ])
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  if test "$vl_cv_lib_readline" != "no"; then
 
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  if test "$ac_cv_libreadline" != "no"; then
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    AC_DEFINE(HAVE_LIBREADLINE, 1,
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              [Define if you have a readline compatible library])
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    AC_CHECK_HEADERS(readline.h readline/readline.h)
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    AC_CACHE_CHECK([whether readline supports history],
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                   vl_cv_lib_readline_history, [
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      vl_cv_lib_readline_history="no"
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      AC_TRY_LINK_FUNC(add_history, vl_cv_lib_readline_history="yes")
 
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                   ac_cv_libreadline_history, [
 
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      ac_cv_libreadline_history="no"
 
193
      AC_TRY_LINK_FUNC(add_history, ac_cv_libreadline_history="yes")
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194
    ])
100
 
    if test "$vl_cv_lib_readline_history" = "yes"; then
 
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    if test "$ac_cv_libreadline_history" = "yes"; then
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      AC_DEFINE(HAVE_READLINE_HISTORY, 1,
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                [Define if your readline library has \`add_history'])
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      AC_CHECK_HEADERS(history.h readline/history.h)
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    fi
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  fi
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])dnl
 
201
  PANDORA_CHECK_RL_COMPENTRY  
 
202
  PANDORA_CHECK_RL_COMPLETION_FUNC
 
203
  PANDORA_CHECK_TIOCGWINSZ
 
204
 
 
205
 
 
206
  READLINE_LIBS="${LIBS}"
 
207
  LIBS="${save_LIBS}"
 
208
  AC_SUBST(READLINE_LIBS)
 
209
 
 
210
  AM_CONDITIONAL(HAVE_LIBREADLINE, [test "x${ac_cv_libreadline}" = "xyes"])
 
211
])
 
212
 
 
213
AC_DEFUN([_PANDORA_HAVE_LIBREADLINE],[
 
214
 
 
215
  AC_ARG_ENABLE([libreadline],
 
216
    [AS_HELP_STRING([--disable-libreadline],
 
217
      [Build with libreadline support @<:@default=on@:>@])],
 
218
    [ac_enable_libreadline="$enableval"],
 
219
    [ac_enable_libreadline="yes"])
 
220
 
 
221
  _PANDORA_SEARCH_LIBREADLINE
 
222
])
 
223
 
 
224
 
 
225
AC_DEFUN([PANDORA_HAVE_LIBREADLINE],[
 
226
  AC_REQUIRE([_PANDORA_HAVE_LIBREADLINE])
 
227
])
 
228
 
 
229
AC_DEFUN([_PANDORA_REQUIRE_LIBREADLINE],[
 
230
  ac_enable_libreadline="yes"
 
231
  _PANDORA_SEARCH_LIBREADLINE
 
232
 
 
233
  AS_IF([test "x$ac_cv_libreadline" = "xno"],
 
234
    AC_MSG_ERROR([libreadline is required for ${PACKAGE}. On Debian this can be found in libreadline5-dev. On RedHat this can be found in readline-devel.]))
 
235
 
 
236
])
 
237
 
 
238
AC_DEFUN([PANDORA_REQUIRE_LIBREADLINE],[
 
239
  AC_REQUIRE([_PANDORA_REQUIRE_LIBREADLINE])
 
240
])
 
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