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|
dnl configuration script for rlwrap
dnl Process this file with autoconf to produce configure.
dnl
dnl Copyright (C) 2000-2017 Hans Lub hanslub42@gmail.com
dnl
dnl This file is part of rlwrap
dnl
dnl rlwrap is free software; you can redistribute it and/or modify it
dnl under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2, or (at your
dnl option) any later version.
dnl
dnl rlwrap is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with GUILE; see the file COPYING. If not, write to the
dnl Free Software Foundation, Inc., 59 Temple Place - Suite 330,
dnl Boston, MA 02111-1307, USA.
AC_INIT(rlwrap,0.46.1)
AC_PREREQ(2.69)
AC_CONFIG_AUX_DIR(tools)
AC_CANONICAL_HOST
AC_CONFIG_SRCDIR(src/main.c)
AM_INIT_AUTOMAKE([foreign])
AC_PROG_INSTALL
AC_CONFIG_HEADERS([config.h])
AC_PROG_MAKE_SET
AM_SANITY_CHECK
# option parsing for optional features
opt_debug=no
opt_homegrown_redisplay=no
opt_spy_on_readline=yes
opt_multibyte_aware=yes
opt_proc_mountpoint=/proc
AC_ARG_ENABLE(debug,
AS_HELP_STRING([--enable-debug], [enable debugging (default=NO)]),
opt_debug=$enableval)
AC_ARG_ENABLE(pedantic-ansi,
AS_HELP_STRING([--enable-pedantic-ansi], [compile with -ansi and -pedantic (default=NO)]),
opt_pedantic_ansi=$enableval)
AC_ARG_ENABLE(homegrown-redisplay,
AS_HELP_STRING([--enable-homegrown-redisplay], [try this only if rlwrap messes up the prompt (default=NO)]),
opt_homegrown_redisplay=$enableval)
AC_ARG_ENABLE(multibyte-aware,
AS_HELP_STRING([--enable-multibyte-aware], [make rlwrap aware of multibyte characters (default=yes)]),
opt_multibyte_aware=$enableval)
AC_ARG_ENABLE(spy-on-readline,
AS_HELP_STRING([--enable-spy-on-readline], [use private readline variable to keep screen tidy when resizing terminal (default=yes)]),
opt_spy_on_readline=$enableval)
AC_ARG_ENABLE(proc-mountpoint,
AS_HELP_STRING([--enable-proc-mountpoint],
[specify mountpoint for Linux-style procfs (used for determination of command's PWD) (default=/proc)]), # '
opt_proc_mountpoint=$enableval)
if test x$opt_debug = xyes ; then
AC_DEFINE(DEBUG,1 ,Define to 1 to get debugging info)
test -z "$CFLAGS" || AC_MSG_WARN([Because CFLAGS is set, configure will not add -g and -Wall to them - do it yourself if necessary])
test -z "$CFLAGS" && AC_SUBST(CFLAGS,"-O0 -g -Wall") # compile for debugging, and give plenty of warnings
fi
if test x$opt_pedantic_ansi = xyes ; then
AC_SUBST(CFLAGS,"$CFLAGS -ansi -Wimplicit-function-declaration -Wimplicit -pedantic -Wextra")
fi
# wait with defining SPY_ON_READLINE until we know we can use _rl_horizontal_scroll_mode (cf below)
AC_USE_SYSTEM_EXTENSIONS
test x$opt_homegrown_redisplay = xyes && AC_DEFINE(HOMEGROWN_REDISPLAY,1 ,[Define to 1 to use homegrown_redisplay()])
test x$opt_multibyte_aware = xyes && AC_DEFINE(MULTIBYTE_AWARE,1 ,Define to 1 to be aware of wide chars in prompts)
AC_CONFIG_FILES([Makefile filters/Makefile doc/Makefile src/Makefile doc/rlwrap.man])
# Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PATH_PROG(PERL,perl)
AC_CHECK_PROG(STRIP,strip,strip,true)
# Checks for header files.
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([errno.h fcntl.h libgen.h libutil.h stdlib.h string.h sched.h sys/file.h sys/ioctl.h sys/wait.h sys/resource.h stddef.h ])
AC_CHECK_HEADERS([termios.h unistd.h stdint.h time.h sys/time.h getopt.h regex.h curses.h stropts.h termcap.h util.h])
AC_CHECK_HEADERS([ term.h ncurses/term.h], , ,
[#ifdef HAVE_CURSES_H
#include <curses.h>
#endif])
AC_CHECK_DECLS(PROC_PIDVNODEPATHINFO, , , [#include <libproc.h>])
have_freebsd_libprocstat=yes
AC_CHECK_DECLS([procstat_open_sysctl, procstat_getprocs, procstat_getfiles, STAILQ_FOREACH] ,[] ,[have_freebsd_libprocstat=no],
[#include <sys/param.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <libprocstat.h>
#include <sys/sysctl.h>])
if test x$have_freebsd_libprocstat = xyes ; then
AC_DEFINE(HAVE_FREEBSD_LIBPROCSTAT,1 ,[Define to 1 to use FREEBSD libprocstat])
PROCSTATLIB='-lprocstat'
fi
# Found this in configure.ac for 'top':
# The third argument to tputs is a putc-like function that takes an
# argument. On most systems that argument is an int, but on some (you
# know who you are, Solaris!) it is a char. Determine which:
_savedwerror_flag=$ac_c_werror_flag
ac_c_werror_flag=yes # make $CC fail after warning
AC_MSG_CHECKING([argument type of tputs putc function])
AC_COMPILE_IFELSE( [AC_LANG_PROGRAM(
[ #ifdef HAVE_CURSES_H
# include <curses.h>
# ifdef HAVE_TERM_H
# include <term.h>
# else
# ifdef HAVE_NCURSES_TERM_H /* cygwin? AIX? */
# include <ncurses/term.h>
# endif
# endif
#else
# ifdef HAVE_TERMCAP_H
# include <termcap.h>
# endif
#endif
int f(char i) { }],
[tputs("a", 1, f);])],
[ac_cv_type_tputs_putc="char"],
[ac_cv_type_tputs_putc="int"])
AC_MSG_RESULT($ac_cv_type_tputs_putc)
AC_DEFINE_UNQUOTED(TPUTS_PUTC_ARGTYPE, $ac_cv_type_tputs_putc,
[Define as the type for the argument to the putc function of tputs ('int' or 'char')])
ac_c_werror_flag=$_savedwerror_flag
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T
# Checks for library functions.
AC_PROG_GCC_TRADITIONAL
# Let groff -Tman know whether we have long options
# Up to 0.45, rlwrap would test if getopt() understands option strings like "a:b::c" with double colons
# I now tend to think that that only happens if (POSIX) getopt() is implemented using (GNU) getopt_long(), so this test
# is actually superfluous. I leave GETOPT_GROKS_OPTIONAL_ARGS alone for the moment, in case some getopt_long()
# implementation that doesnt grok double colons turns up:
AC_CHECK_FUNC([getopt_long],
[AC_SUBST(HAVE_LONG_OPTS,[yes])
AC_DEFINE(GETOPT_GROKS_OPTIONAL_ARGS, 1, Define if your getopt() correctly understands double colons in the option string)
AC_SUBST(HAVE_OPTIONAL_ARGS,yes)],
[AC_SUBST(HAVE_LONG_OPTS,[no])]
AC_SUBST(HAVE_OPTIONAL_ARGS,no))
AC_CHECK_FUNCS(basename dirname flock getopt_long isastream mkstemps pselect putenv readlink sched_yield )
AC_CHECK_FUNCS(setenv setitimer setsid setrlimit sigaction snprintf strlcpy strlcat strnlen system)
# Try to determine the kind of pty support on this system
# This is not so easy and may guess wrong; if this happens:
# - edit config.h by hand (and keep a copy of it somewhere as configure will overwrite it), and
# - *please* notify the author! (hanslub42@gmail.com)
# Most of the code below is taken from rxvt-2.7.10 (Copyright (c) 1999-2001
# Geoff Wing <gcw@pobox.com>)
# In the newest FreeBSD, we need openpty, which exists in libutil
# NB: The rxvt configure script warns against this. Why?
AC_CHECK_LIB(util, openpty)
AC_CHECK_FUNCS(openpty getpty grantpt unlockpt)
# AC_CACHE_CHECK(for getpt, ptyttylib_cv_func_getpt,
# [AC_TRY_LINK([#define _GNU_SOURCE
# #ifdef HAVE_STDLIB_H
# # include <stdlib.h>
# #endif],
# [(void)getpt();],
# ptyttylib_cv_func_getpt=yes, ptyttylib_cv_func_getpt=no)])
AC_CACHE_CHECK(for getpt, ptyttylib_cv_func_getpt,
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[
#define _GNU_SOURCE
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
]],
[[(void)getpt();]],
ptyttylib_cv_func_getpt=yes, ptyttylib_cv_func_getpt=no)])])
if test x$ptyttylib_cv_func_getpt = xyes; then
AC_DEFINE(HAVE_GETPT, 1, Define if you have _GNU_SOURCE getpt() )
fi
AC_CACHE_CHECK(for pty/tty type, ptyttylib_cv_ptys,
[if test x$ac_cv_func_openpty = xyes; then
ptyttylib_cv_ptys=OPENPTY
AC_CHECK_HEADERS([pty.h])
else if test x$ac_cv_func__getpty = xyes; then
ptyttylib_cv_ptys=SGI4
else if test -c /dev/ttyp20 -a ! -c /dev/ptmx; then
ptyttylib_cv_ptys=SCO
else if test -c /dev/ptym/clone; then
ptyttylib_cv_ptys=HPUX
else if test x$ptyttylib_cv_func_getpt = xyes; then
ptyttylib_cv_ptys=GLIBC
else if test -c /dev/ptc -a -c /dev/pts; then
ptyttylib_cv_ptys=PTC
else if test -c /dev/ptc -a -d /dev/pts; then
ptyttylib_cv_ptys=PTC
else if test -c /dev/ptmx -a -c /dev/pts/0; then
ptyttylib_cv_ptys=STREAMS
else case "$host_os" in
*cygwin*) ptyttylib_cv_ptys=STREAMS ;;
*) ptyttylib_cv_ptys=PREHISTORIC ;;
esac
fi
fi
fi
fi
fi
fi
fi
fi
])
if test x$ptyttylib_cv_ptys = xOPENPTY; then
AC_DEFINE(PTYS_ARE_OPENPTY, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xSCO; then
AC_DEFINE(PTYS_ARE_NUMERIC, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xSTREAMS; then
AC_DEFINE(PTYS_ARE_PTMX, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xPTC; then
AC_DEFINE(PTYS_ARE_PTC, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xSGI4; then
AC_DEFINE(PTYS_ARE__GETPTY, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xCONVEX; then
AC_DEFINE(PTYS_ARE_GETPTY, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xGLIBC; then
AC_DEFINE(PTYS_ARE_GETPT, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xHPUX; then
AC_DEFINE(PTYS_ARE_CLONE, 1, Define for this pty type)
fi
if test x$ptyttylib_cv_ptys = xPREHISTORIC -o x$ptyttylib_cv_ptys = xHPUX -o x$ptyttylib_cv_ptys = xGLIBC; then
AC_DEFINE(PTYS_ARE_SEARCHED, 1, Define for this pty type)
fi
AC_MSG_NOTICE(checking for pty ranges)
ptys=`echo /dev/pty??`
pch1=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\).$/\1/g' | sort -u | tr -d '\012'`
pch2=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\)$/\1/g' | sort -u | tr -d '\012'`
if test x$pch1 != x; then
AC_DEFINE_UNQUOTED(PTYCHAR1, "$pch1", Define for first char in devptyXX)
fi
if test x$pch2 != x; then
AC_DEFINE_UNQUOTED(PTYCHAR2, "$pch2", Define for second char in devptyXX)
fi
# Checks whether readline needs additional libs.
AC_CHECK_FUNC(tgetent,
[READLINE_SUPPLIB=],
[AC_CHECK_LIB(tinfo, tgetent,
[READLINE_SUPPLIB=-ltinfo],
[AC_CHECK_LIB(curses, tgetent,
[READLINE_SUPPLIB=-lcurses],
[AC_CHECK_LIB(ncurses, tgetent,
[READLINE_SUPPLIB=-lncurses],
[AC_CHECK_LIB(termcap, tgetent,
[READLINE_SUPPLIB=-ltermcap],
[AC_MSG_WARN(No termcap nor curses library found)])
])
])
])
])
AC_CHECK_LIB(readline,readline,[READLINELIB=-lreadline],
AC_MSG_ERROR([
You need the GNU readline library(ftp://ftp.gnu.org/gnu/readline/ ) to build
this program!
]), [$READLINE_SUPPLIB])
LIBS="$LIBS $PROCSTATLIB $READLINELIB $READLINE_SUPPLIB"
AC_CHECK_FUNCS(tigetnum)
AC_CHECK_HEADER([readline/readline.h],[],AC_MSG_ERROR([readline.h not found - you may need to install a readline development package]))
# AC_EGREP_RL_HEADER_AND_CHECK_FUNC(function_or_variable, [code using function_or_variable], HAVE_FUNCTION_OR_VARIABLE)
# This macro looks for <function_or_variable>, both as a declaration in header.h, and as a symbol in $LIBS
# ------------------------------------------------------------------------------------------
# @@ Haal hier TRY_LINK uit!
# AC_DEFUN([AC_EGREP_RL_HEADER_AND_CHECK_FUNC],
# [ AC_MSG_CHECKING([whether your readline headers and library know about $1])
# AC_EGREP_HEADER($1, [readline/readline.h], in_header=1, in_header=0)
# AC_TRY_LINK([ #include <stdio.h>
# #include "readline/readline.h" ],
# [$2], in_lib=1, in_lib=0)
# if test x$in_lib = x1 -a x$in_header = x1 ; then
# AC_DEFINE($3, 1 ,[Define to 1 if your readline lib has $1])
# last_check=yes
# else
# last_check=no
# fi
# remark=
# if test x$in_lib = x0 -a x$in_header = x1 ; then
# remark=" (only in headers, not in lib. Hmmmmm....)"
# fi
# AC_MSG_RESULT([$last_check$remark])
# ])
AC_DEFUN([AC_EGREP_RL_HEADER_AND_CHECK_FUNC],
[ AC_MSG_CHECKING([whether your readline headers and library know about $1])
AC_EGREP_HEADER($1, [readline/readline.h], in_header=1, in_header=0)
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[ #include <stdio.h>
#include "readline/readline.h"
]], [[$2]])], in_lib=1, in_lib=0)
if test x$in_lib = x1 -a x$in_header = x1 ; then
AC_DEFINE($3, 1 ,[Define to 1 if your readline lib has $1])
last_check=yes
else
last_check=no
fi
remark=
if test x$in_lib = x0 -a x$in_header = x1 ; then
remark=" (only in headers, not in lib. Hmmmmm....)"
fi
AC_MSG_RESULT([$last_check$remark])
])
AC_DEFUN([AC_MY_ERROR],
[AC_MSG_ERROR([
********************************************************************************
$1
********************************************************************************
])])
AC_EGREP_RL_HEADER_AND_CHECK_FUNC([rl_set_screen_size], [rl_set_screen_size(25,80)], [HAVE_RL_SET_SCREEN_SIZE])
test $last_check = no && AC_MY_ERROR([You need a more recent version (at least 4.2) of the readline
library (ftp://ftp.gnu.org/gnu/readline/) to build this program!])
AC_EGREP_RL_HEADER_AND_CHECK_FUNC([rl_basic_quote_characters], [printf("%s", rl_basic_quote_characters)], [HAVE_RL_BASIC_QUOTE_CHARS])
test $last_check = no && AC_MY_ERROR([[The readline library that I found is incomplete, probably just a wrapper
around libedit (like on Mac OS X) Please install GNU Readline and re-configure
with the correct CFLAGS and LDFLAGS (cf. the instructions in INSTALL)]])
AC_EGREP_RL_HEADER_AND_CHECK_FUNC([rl_variable_value], [rl_variable_value("blah")], [HAVE_RL_VARIABLE_VALUE])
AC_EGREP_RL_HEADER_AND_CHECK_FUNC([rl_readline_version],[printf("%d",rl_readline_version)], [HAVE_RL_READLINE_VERSION])
AC_EGREP_RL_HEADER_AND_CHECK_FUNC([rl_executing_keyseq],[printf("%s", rl_executing_keyseq)], [HAVE_RL_EXECUTING_KEYSEQ])
# rlwrap tries to read a global (but private) readline variable _rl_horizontal_scroll_mode if the the option spy-on-realine is enabled
# Depending on the linker (or linker options like gcc's -fvisibility=xxx) it may or may not be visible:
AC_MSG_CHECKING([whether the private symbol _rl_horizontal_scroll_mode is visble in your readline libs])
# AC_TRY_LINK([#include <stdio.h>
# extern int _rl_horizontal_scroll_mode;],
# [printf("%d", _rl_horizontal_scroll_mode)],
# found_rl_horiz=yes, found_rl_horiz=no)
AC_LINK_IFELSE(
[AC_LANG_PROGRAM( [[
#include <stdio.h>
extern int _rl_horizontal_scroll_mode;]],
[[printf("%d", _rl_horizontal_scroll_mode)]])],
found_rl_horiz=yes, found_rl_horiz=no)
AC_MSG_RESULT($found_rl_horiz)
if test $opt_spy_on_readline = yes -a $found_rl_horiz = no ; then
AC_MSG_WARN([I can't find _rl_horizontal_scroll_mode: disabling spy-on-readline now])
opt_spy_on_readline=no
fi
test x$opt_spy_on_readline = xyes && AC_DEFINE(SPY_ON_READLINE,1 ,Define to 1 to use private _rl_horizontal_scroll_mode)
# check for existence of myself under $opt_proc_mountpoint/$$/cwd If the user specified --disable-proc-mountpoint we'll still do these tests
# but they wil fail unless /no is a procfs mountpoint ;-)
echo "Will rlwrap find command's working directory under ${opt_proc_mountpoint}/<commands pid>/cwd? let's see..."
if test x$cross_compiling = xyes; then
AC_DEFINE(HAVE_PROC_PID_CWD, 0, [Define to 1 if <opt_proc_mountpoint>/<pid>/cwd is a link to working directory of process <pid>])
AC_SUBST(HAVE_PROC_PID_CWD,[no])
echo
AC_MSG_WARN([This test doesn't work when cross-compiling. Edit HAVE_PROC_PID_CWD in config.h by hand. Guessing: ])
else
AC_CHECK_FILES($opt_proc_mountpoint/$$/cwd/configure.ac,
[AC_DEFINE(HAVE_PROC_PID_CWD, 1 ,[Define to 1 if <opt_proc_mountpoint>/<pid>/cwd is a link to working directory of process <pid>])]
,[])
fi
#AC_MSG_RESULT([$HAVE_PROC_PID_CWD])
AC_DEFINE_UNQUOTED(PROC_MOUNTPOINT, "[$opt_proc_mountpoint]", [Define to location of Linux-style procfs mountpoint if provided and valid])
AC_MSG_CHECKING([whether we can find command line under <opt_proc_mountpoint>/<pid>/cmdline and mirror it by overwriting our own *argv (this may take a few secs)])
# We won't exactly do that, but instead write a test program that writes a random string to *argv (making sure it is longer than argv[0])
# and then verify that we can see the same string under <opt_proc_mountpoint>/<pid>/cmdline
# If so, we enable the --mirror-args option
random_nonsense1="fymaytskjqhjeeimtmjqvqbnrnfutgnkehkmqqealklsoswyepxugcckimqdwbwfqdhdsdxfxiagqbnm"
random_nonsense2="iraliuuklajcorjfunavdsytdiydjaoaeauiapidtoxogfplrxfmfcmajikwenafwcownmoodxjljhsv"
AC_DEFINE_UNQUOTED(RANDOM_NONSENSE2, "$random_nonsense2", nonsense arg to overwrite conftest argv with)
if test $cross_compiling = "yes"; then
AC_DEFINE(ENABLE_MIRROR_ARGS, 0, [Define if overwriting argv changes args visible in ps (1)])
AC_MSG_WARN([This test doesn't work when cross-compiling. Edit ENABLE_MIRROR_ARGS in config.h by hand. Guessing:])
result="no"
else
AC_LANG_CONFTEST(
[AC_LANG_SOURCE([[#include <unistd.h>
#include <string.h>
int main(int argc, char **argv) {
memcpy(*argv, "a\0" RANDOM_NONSENSE2, strlen(RANDOM_NONSENSE2) + 2);
return(sleep(10));
}
]])])
result="no"
$CC -o conftest conftest.c
./conftest $random_nonsense1 >/dev/null 2>&1 &
CONFTEST_PID=$!
for N in 1 2 3 ; do # retry a few times because of a possible race (on 1-processor systems) where ./conftest has been forked by the shell, ...
# ... but not yet executed (which will make the following test fail)
if grep $random_nonsense2 $opt_proc_mountpoint/$CONFTEST_PID/cmdline >/dev/null 2>&1; then
AS_ECHO(["#define ENABLE_MIRROR_ARGS 1"]) >>confdefs.h
result="yes"
break
fi
sleep 1 # shorter sleep is not portable
done
kill $CONFTEST_PID
fi
AC_MSG_RESULT($result)
if test x$cross_compiling = xyes; then
cat <<EOF
**************************************************************************************
* This configure script runs a few handwritten scripts and ad-hoc programs in order *
* to determine capabilities of the host (mostly around the /proc filesystem) *
* When cross-compiling, this makes no sense, as you can see above. *
* Hence, after configuration, please set HAVE_PROC_PID_CWD, *
* GETOPT_GROKS_OPTIONAL_ARGS and ENABLE_MIRROR_ARGS by hand (in config.h) *
**************************************************************************************
EOF
fi
echo
echo
AC_OUTPUT
cat <<EOF
Now do:
make (or gmake) to build rlwrap
make check for instructions how to test it
make install to install it
EOF
# Local Variables:
# mode: autoconf
# End:
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