dnl Process this file with autoconf to produce a configure script.
dnl configure.in for xpuzzles.
AC_INIT()

dnl Checks for programs.
AC_ARG_WITH(gcc,
[  --with-gcc              use GCC to compile])
dnl AC_ARG_WITH(debug,
dnl [  --with-debug            compile with -g, if no optimize])

test -n "$CC" && cc_specified=yes
case ${with_gcc} in
  yes ) CC=gcc ;;
dnl yes ) CC=g++ ;;
  no  ) CC=cc ;;
  *   ) AC_PROG_CC;;
dnl  *   ) AC_PROG_CXX ;;
esac

dnl case ${with_debug} in
dnl   yes ) CFLAGS="${CFLAGS} -g" ;;
dnl   no ) CFLAGS="${CFLAGS} -O" ;;
dnl esac

if test "${CC}" = "gcc" ; then
  CFLAGS="${CFLAGS} -Wall"
fi

AC_PROG_LN_S
AC_PROG_CPP
AC_AIX
AC_PROG_INSTALL
dnl Optional features.
dnl add copious amounts of debugging with gcc

dnl Checks for header files.
dnl AC_HEADER_STDC /* If its not ansi, its not going to go */
dnl AC_CHECK_HEADERS(poll.h sys/poll.h)
AC_CHECK_HEADERS(fcntl.h unistd.h)

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

dnl Checks for library functions.
dnl AC_CHECK_FUNCS(select)

dnl X Window System files.
AC_PATH_XTRA
if test "$no_x" = yes; then
  XLIBS=NONE
else
  if test -n "${x_includes}"; then
    XWIDGETINC="-I${x_includes} ${XWIDGETINC}"
    XMWIDGETINC="-I${x_includes} ${XMWIDGETINC}"
  fi
  XLIBS="${x_libraries}"
  if test -n "${x_libraries}"; then
    XWIDGET_LDFLAGS="/usr/lib:${x_libraries}"
    XMWIDGET_LDFLAGS="/usr/lib:${x_libraries}"
    XWIDGETLIBPATHS="-L${x_libraries} ${XWIDGETLIBPATHS}"
    XMWIDGETLIBPATHS="-L${x_libraries} ${XMWIDGETLIBPATHS}"
  fi
  LIBS="${X_PRE_LIBS} -lXt -lX11 ${X_EXTRA_LIBS} ${LIBS}"
dnl AC_DEFINE(X11) /* If there is no X, its not going to go */
fi

dnl Xm MOTIF Motif motif

AC_DEFUN(AC_PATH_MOTIF_DIRECT,
[test -z "$motif_direct_test_library" && motif_direct_test_library=Xm
test -z "$motif_direct_test_function" && motif_direct_test_function=XmCreatePushButton
test -z "$motif_direct_test_include" && motif_direct_test_include=Xm/Xm.h
  for ac_dir in               \
    /usr/include/Motif1.2     \
    /usr/Motif1.2/include     \
                              \
    /usr/motif/include        \
                              \
    /usr/X11R6/include        \
    /usr/X11R5/include        \
    /usr/X11R4/include        \
                              \
    /usr/include/X11R6        \
    /usr/include/X11R5        \
    /usr/include/X11R4        \
                              \
    /usr/local/X11R6/include  \
    /usr/local/X11R5/include  \
    /usr/local/X11R4/include  \
                              \
    /usr/local/include/X11R6  \
    /usr/local/include/X11R5  \
    /usr/local/include/X11R4  \
                              \
    /usr/X11/include          \
    /usr/include/X11          \
    /usr/local/X11/include    \
    /usr/local/include/X11    \
                              \
    /usr/X386/include         \
    /usr/x386/include         \
    /usr/XFree86/include/X11  \
                              \
    /usr/dt/include           \
                              \
    /usr/local/include        \
    /usr/include              \
    /usr/unsupported/include  \
    /usr/athena/include       \
    /usr/local/x11r5/include  \
    /usr/lpp/Xamples/include  \
    ; \
  do
    if test -r "$ac_dir/$motif_direct_test_include"; then
      no_motif= ac_motif_includes=$ac_dir
      break
    fi
  done

# Check for the libraries.
# See if we find them without any special options.
# Don't add to $LIBS permanently.
ac_save_LIBS="$LIBS"
LIBS="-l$motif_direct_test_library $LIBS"
# First see if replacing the include by lib works.
for ac_dir in `echo "$ac_motif_includes" | sed s/include/lib/` \
    /usr/lib/Motif1.2     \
    /usr/Motif1.2/lib     \
                          \
    /usr/motif/lib        \
                          \
    /usr/X11R6/lib        \
    /usr/X11R5/lib        \
    /usr/X11R4/lib        \
                          \
    /usr/lib/X11R6        \
    /usr/lib/X11R5        \
    /usr/lib/X11R4        \
                          \
    /usr/local/X11R6/lib  \
    /usr/local/X11R5/lib  \
    /usr/local/X11R4/lib  \
                          \
    /usr/local/lib/X11R6  \
    /usr/local/lib/X11R5  \
    /usr/local/lib/X11R4  \
                          \
    /usr/X11/lib          \
    /usr/lib/X11          \
    /usr/local/X11/lib    \
                          \
    /usr/X386/lib         \
    /usr/x386/lib         \
    /usr/XFree86/lib/X11  \
                          \
    /usr/lib              \
    /usr/local/lib        \
    /usr/unsupported/lib  \
    /usr/athena/lib       \
    /usr/local/x11r5/lib  \
    /usr/lpp/Xamples/lib  \
    ; \
do
  for ac_extension in a so sl; do
    if test -r $ac_dir/lib${motif_direct_test_library}.$ac_extension; then
      no_motif= ac_motif_libraries=$ac_dir
      break 2
    fi
  done
done
LIBS="$ac_save_LIBS"])
AC_DEFUN(AC_PATH_MOTIF,
[AC_REQUIRE_CPP()dnl

motif_includes=NONE
motif_libraries=NONE

AC_MSG_CHECKING(for Motif)
AC_ARG_WITH(motif, [  --with-motif            enable Motif tests])
if test "x$with_motif" = xno; then
  no_motif=yes
else
  if test "x$motif_includes" != xNONE && test "x$motif_libraries" != xNONE; then
    no_motif=
  else
AC_CACHE_VAL(ac_cv_path_motif,
[# One or both of these vars are not set, and there is no cached value.
no_motif=yes
AC_PATH_MOTIF_DIRECT

if test "$no_motif" = yes; then
  ac_cv_path_motif="no_motif=yes"
else
  ac_cv_path_motif="no_motif= ac_motif_includes=$ac_motif_includes ac_motif_libraries=$ac_motif_libraries"
fi])dnl
  fi
  eval "$ac_cv_path_motif"
fi # with_motif != no

if test "$no_motif" = yes; then
  AC_MSG_RESULT(no)
  XMWIDGET=""
  INSTALL_XMWIDGET=""
  UNINSTALL_XMWIDGET=""
else
  XMWIDGETLIBS="-lXm ${LIBS}"
  XMWIDGET="xmmball"
  INSTALL_XMWIDGET="install_xmmball"
  UNINSTALL_XMWIDGET="uninstall_xmmball"
  test "x$motif_includes" = xNONE && motif_includes=$ac_motif_includes
  test "x$motif_libraries" = xNONE && motif_libraries=$ac_motif_libraries
  ac_cv_path_motif="no_motif= ac_motif_includes=$motif_includes ac_motif_libraries=$motif_libraries"
  AC_MSG_RESULT([libraries $motif_libraries, headers $motif_includes])
fi
])

AC_PATH_MOTIF

if test "x$motif_libraries" != x ; then
  XMWIDGET_LDFLAGS="${XMWIDGET_LDFLAGS}:$motif_libraries"
  XMWIDGETLIBPATHS="-L$motif_libraries ${XMWIDGETLIBPATHS}"
fi
if test "x$motif_includes" != x ; then
  XMWIDGETINC="${XMWIDGETINC} -I$motif_includes"
fi

dnl Xmu EDITRES Editres editres

AC_DEFUN(AC_PATH_EDITRES_DIRECT,
[test -z "$editres_direct_test_library" && editres_direct_test_library=Xmu
test -z "$editres_direct_test_function" && editres_direct_test_function=_XEditResCheckMessages
test -z "$editres_direct_test_include" && editres_direct_test_include=X11/Xmu/Editres.h
  for ac_dir in               \
    /usr/X11R6/include        \
    /usr/X11R5/include        \
    /usr/X11R4/include        \
    /usr/X11/include          \
                              \
    /usr/include/X11          \
    /usr/include/X11R6        \
    /usr/include/X11R5        \
    /usr/include/X11R4        \
                              \
    /usr/local/X11/include    \
    /usr/local/X11R6/include  \
    /usr/local/X11R5/include  \
    /usr/local/X11R4/include  \
                              \
    /usr/local/include/X11    \
    /usr/local/include/X11R6  \
    /usr/local/include/X11R5  \
    /usr/local/include/X11R4  \
                              \
    /usr/X386/include         \
    /usr/x386/include         \
    /usr/XFree86/include      \
                              \
    /usr/local/include        \
    /usr/include              \
    /usr/unsupported/include  \
    /usr/athena/include       \
    /usr/local/x11r5/include  \
    /usr/lpp/Xamples/include  \
                              \
    /usr/openwin/include      \
    /usr/openwin/share/include \
    ; \
  do
    if test -r "$ac_dir/$editres_direct_test_include"; then
      no_editres= ac_editres_includes=$ac_dir
      break
    fi
  done

# Check for the libraries.
# See if we find them without any special options.
# Don't add to $LIBS permanently.
ac_save_LIBS="$LIBS"
LIBS="-l$editres_direct_test_library $LIBS"
# First see if replacing the include by lib works.
for ac_dir in `echo "$ac_editres_includes" | sed s/include/lib/` \
                          \
    /usr/X11/lib          \
    /usr/X11R6/lib        \
    /usr/X11R5/lib        \
    /usr/X11R4/lib        \
                          \
    /usr/lib/X11          \
    /usr/lib/X11R6        \
    /usr/lib/X11R5        \
    /usr/lib/X11R4        \
                          \
    /usr/local/X11/lib    \
    /usr/local/X11R6/lib  \
    /usr/local/X11R5/lib  \
    /usr/local/X11R4/lib  \
                          \
    /usr/local/lib/X11    \
    /usr/local/lib/X11R6  \
    /usr/local/lib/X11R5  \
    /usr/local/lib/X11R4  \
                          \
    /usr/X386/lib         \
    /usr/x386/lib         \
    /usr/XFree86/lib/X11  \
                          \
    /usr/lib              \
    /usr/local/lib        \
    /usr/unsupported/lib  \
    /usr/athena/lib       \
    /usr/local/x11r5/lib  \
    /usr/lpp/Xamples/lib  \
    /lib/usr/lib/X11      \
                          \
    /usr/openwin/lib      \
    /usr/openwin/share/lib \
    ; \
do
  for ac_extension in a so sl; do
    if test -r $ac_dir/lib${editres_direct_test_library}.$ac_extension; then
      no_editres= ac_editres_libraries=$ac_dir
      break 2
    fi
  done
done
LIBS="$ac_save_LIBS"])
AC_DEFUN(AC_PATH_EDITRES,
[AC_REQUIRE_CPP()dnl

editres_includes=NONE
editres_libraries=NONE

AC_MSG_CHECKING(for Editres)
AC_ARG_WITH(editres, [  --with-editres          debugger for xmlock])
if test "x$with_editres" = xno; then
  no_editres=yes
else
  if test "x$editres_includes" != xNONE && test "x$editres_libraries" != xNONE; then
    no_editres=
  else
AC_CACHE_VAL(ac_cv_path_editres,
[# One or both of these vars are not set, and there is no cached value.
no_editres=yes
AC_PATH_EDITRES_DIRECT

if test "$no_editres" = yes; then
  ac_cv_path_editres="no_editres=yes"
else
  ac_cv_path_editres="no_editres= ac_editres_includes=$ac_editres_includes ac_editres_libraries=$ac_editres_libraries"
fi])dnl
  fi
  eval "$ac_cv_path_editres"
fi # with_editres != no

if test "$no_editres" = yes; then
  AC_MSG_RESULT(no)
else
  AC_DEFINE(USE_XMU)
  XMWIDGETLIBS="-lXmu ${XMWIDGETLIBS}"
  test "x$editres_includes" = xNONE && editres_includes=$ac_editres_includes
  test "x$editres_libraries" = xNONE && editres_libraries=$ac_editres_libraries
  ac_cv_path_editres="no_editres= ac_editres_includes=$editres_includes ac_editres_libraries=$editres_libraries"
  AC_MSG_RESULT([libraries $editres_libraries, headers $editres_includes])
fi
])

dnl AC_PATH_EDITRES

if test "x$editres_libraries" != x ; then
  XMWIDGET_LDFLAGS="${XMWIDGET_LDFLAGS}:$editres_libraries"
  XWIDGETLIBPATHS="-L$editres_libraries ${XWIDGETLIBPATHS}"
fi
if test "x$editres_includes" != x ; then
  XMWIDGETINC="${XMWIDGETINC} -I$editres_includes"
fi

dnl Now we handle the various system dependant problems
dnl that aren't addressed in the X header files, or things dealing
dnl with utility quirks on some systems.

aixv3=no

AC_CANONICAL_HOST
canonical=$host
case "${canonical}" in

  *-*-aix* )
    aixv3=yes
    case "${canonical}" in
      *-*-aix2* | *-*-aix3.0* | *-*-aix3.1* )
        AC_DEFINE(LESS_THAN_AIX3_2)
      ;;
    esac
  ;;

  *-*-freebsd* | *-*-netbsd* | *-*-openbsd* )
    XWIDGETLDFLAGS="-R${XWIDGET_LDFLAGS}"
    XMWIDGETLDFLAGS="-R${XMWIDGET_LDFLAGS}"
  ;;

  *-*-hpux* )
    if test "${CC}" = "cc" ; then
      CFLAGS="${CFLAGS} -Aa -z -D_HPUX_SOURCE"
      GPROF_CFLAGS="${GPROF_CFLAGS} -Aa -z -D_HPUX_SOURCE"
    fi
  ;;

  *-*-irix5* | *-*-irix6* )
    if test "${CC}" = "cc" ; then
      CFLAGS="${CFLAGS} -fullwarn"
    fi
  ;;

  *-*-linux* )
    CFLAGS="${CFLAGS} -ansi -pedantic"
    AC_DEFINE(linux)
    AC_DEFINE(_POSIX_SOURCE)
    AC_DEFINE(_BSD_SOURCE)
    AC_DEFINE(_GNU_SOURCE)
  ;;

  *-*-solaris2* )
    AC_DEFINE(SYSV)
    AC_DEFINE(SVR4)
    XWIDGETLDFLAGS="-R${XWIDGET_LDFLAGS}"
    XMWIDGETLDFLAGS="-R${XMWIDGET_LDFLAGS}"
    LIBS="${LIBS} -lsocket -lnsl -lposix4"
  ;;

esac

srand=no
AC_CHECK_FUNC(srand48, AC_DEFINE(SRAND,srand48) AC_DEFINE(LRAND,lrand48)
  AC_DEFINE(MAXRAND,2147483648.0),
[AC_CHECK_FUNC(srandom, AC_DEFINE(SRAND,srandom) AC_DEFINE(LRAND,random)
  AC_DEFINE(MAXRAND,2147483648.0),
AC_CHECK_FUNC(srand, AC_DEFINE(SRAND,srand) AC_DEFINE(LRAND,rand) srand=yes))])

if test "$srand" = yes; then
  if test "$aixv3" = yes; then
    AC_DEFINE(MAXRAND,2147483648.0)
  else
    AC_DEFINE(MAXRAND,32768.0)
  fi
fi

XWIDGETLIBS="${XWIDGETLIBPATHS} ${LIBS} -lm"
XMWIDGETLIBS="${XMWIDGETLIBPATHS} ${XMWIDGETLIBS} ${LIBS} -lm"
AC_SUBST(XWIDGETLDFLAGS)
AC_SUBST(XMWIDGETLDFLAGS)
AC_SUBST(XWIDGETINC)
AC_SUBST(XMWIDGETINC)
AC_SUBST(XLIBS)
AC_SUBST(XWIDGETLIBS)
AC_SUBST(XMWIDGETLIBS)
AC_SUBST(XMWIDGET)
AC_SUBST(INSTALL_XMWIDGET)
AC_SUBST(UNINSTALL_XMWIDGET)
AC_SUBST(LINT)

dnl AC_CONFIG_HEADER(config.h)
AC_OUTPUT(Makefile)