File: configure.ac

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## Copyright (C) 1998 Jim Hall <jhall1@isd.net>
## Copyright (C) 2008 Bradley Smith <brad@brad-smith.co.uk>
##
## configure.ac for GNU Robots
##
## GNU Robots is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## GNU Robots is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with GNU Robots; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

dnl Process this file with autoconf to produce a configure script.
AC_INIT([GNU Robots], [1.1.0], [brad@brad-smith.co.uk], [gnurobots])
AC_PREREQ([2.59])
AM_CONFIG_HEADER([config.h])
AC_CONFIG_AUX_DIR([build])
AC_CONFIG_SRCDIR([include/api.h])
AM_INIT_AUTOMAKE

dnl Checks for programs.
AC_PROG_CC

dnl libtool stuff
AC_LIBTOOL_DLOPEN
dnl AC_LIBLTDL_CONVENIENCE
AC_DISABLE_STATIC
AC_PROG_LIBTOOL

AC_SUBST(INCLTDL)
AC_SUBST(LIBLTDL)

dnl Locate X Windows
dnl We need AC_PATH_XTRA to also locate extra libaries X depends on.
dnl It will ``export'' X_CFLAGS, X_PRE_LIBS, X_EXTRA_LIBS and X_LIBS,
dnl but for some reason we need to add -lX11 ourselves.
AC_PATH_XTRA

if test "$have_x" = yes; then
  x_libs="-lX11"
  use_x11="yes"

dnl Checks for more X11 libraries, these go to X_LIBS.
AC_CHECK_LIB(Xpm, XpmCreatePixmapFromData,
  x_libs="-lXpm $x_libs"
  use_x11="yes",
  AC_MSG_WARN("can't find libXpm, X11 plugin shall not be compiled")
  use_x11="no",
  $X_LIBS $x_libs $X_PRE_LIBS $X_EXTRA_LIBS)

dnl finished with X, so we update X_LIBS.
X_LIBS="$X_LIBS $x_libs"

else
  AC_MSG_WARN("can't find X windows, X11 plugin shall not be compiled")
  use_x11="no",
fi

AM_CONDITIONAL(USE_X11, test "$use_x11" = "yes")

dnl Check for math library
AC_CHECK_LIB(m, pow)

dnl Check for guile
GUILE_FLAGS

dnl Some sytems need -ldl for dynamic library support.
dnl AC_CHECK_LIB(dl, dlopen)

dnl Check for glib2
PKG_CHECK_MODULES(GLIB2,glib-2.0 >= 2.4 gobject-2.0 gmodule-2.0,HAVE_GLIB2=yes,HAVE_GLIB2=no)
AC_SUBST(GLIB2_LIBS)
AC_SUBST(GLIB2_CFLAGS)

schemedir="\$(pkgdatadir)/scheme"
AC_SUBST(schemedir)

mapsdir="\$(pkgdatadir)/maps"
AC_SUBST(mapsdir)

if test "x$HAVE_GLIB2" = "xno"; then
  AC_MSG_ERROR([GNU Robots requires GLib2 to compile.])
fi

for termlib in ncurses curses termcap terminfo termlib ; do
	AC_CHECK_LIB(${termlib}, tgoto,
		[READLINE_EXTRA="-l${termlib}"; break])
done

AC_CHECK_LIB(readline,readline,[READLINE_LIBS=-lreadline],
	AC_MSG_ERROR([

You need the GNU Readline library to build this program.

]),[$READLINE_EXTRA])

AC_CHECK_HEADER(readline/readline.h,[READLINE_CFLAGS=-I/usr/include/readline/],
	AC_MSG_ERROR([

You need the GNU Readline headers to build this program.

]))

READLINE_LIBS="$READLINE_LIBS $READLINE_EXTRA"

AC_SUBST(READLINE_LIBS)
AC_SUBST(READLINE_CFLAGS)

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(unistd.h)
AC_CHECK_HEADERS(getopt.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST

CFLAGS="-pedantic-errors -Werror -Wall -Wfatal-errors -g"

dnl Done.
AC_CONFIG_FILES([Makefile
 contrib/Makefile
 doc/Makefile
 include/Makefile
 xpm/Makefile
 maps/Makefile
 scheme/Makefile
 src/Makefile
 ])
AC_OUTPUT