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60d8c901ce
Autoconf 2.68 is more picky about correct macro usage and thus I need to fix some wrong call conventions for AC_LANG_PROGRAM. Also factor out an m4 conditional construct from AC_INIT to avoid the "not a literal" warning.
64 lines
1.9 KiB
Plaintext
64 lines
1.9 KiB
Plaintext
dnl Check for readline and dependencies
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dnl Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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dnl
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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dnl
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dnl Defines HAVE_LIBREADLINE to 1 if a working readline setup is
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dnl found, and sets @LIBREADLINE@ to the necessary libraries.
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AC_DEFUN([GNUPG_CHECK_READLINE],
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[
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AC_ARG_WITH(readline,
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AC_HELP_STRING([--with-readline=DIR],
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[look for the readline library in DIR]),
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[_do_readline=$withval],[_do_readline=yes])
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if test "$_do_readline" != "no" ; then
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if test -d "$withval" ; then
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CPPFLAGS="${CPPFLAGS} -I$withval/include"
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LDFLAGS="${LDFLAGS} -L$withval/lib"
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fi
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for _termcap in "" "-ltermcap" "-lcurses" "-lncurses" ; do
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_readline_save_libs=$LIBS
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_combo="-lreadline${_termcap:+ $_termcap}"
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LIBS="$LIBS $_combo"
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AC_MSG_CHECKING([whether readline via \"$_combo\" is present and sane])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <stdio.h>
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#include <readline/readline.h>
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#include <readline/history.h>
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]],[[
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rl_completion_func_t *completer;
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add_history("foobar");
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rl_catch_signals=0;
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rl_inhibit_completion=0;
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rl_attempted_completion_function=NULL;
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rl_completion_matches(NULL,NULL);
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]])],[_found_readline=yes],[_found_readline=no])
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AC_MSG_RESULT([$_found_readline])
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LIBS=$_readline_save_libs
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if test $_found_readline = yes ; then
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AC_DEFINE(HAVE_LIBREADLINE,1,
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[Define to 1 if you have a fully functional readline library.])
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AC_SUBST(LIBREADLINE,$_combo)
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break
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fi
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done
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unset _termcap
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unset _readline_save_libs
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unset _combo
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unset _found_readline
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fi
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])dnl
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