AC_INIT([Conky],[1.3.0],[brenden1@users.sourceforge.net])

AM_INIT_AUTOMAKE(conky, 1.3.0)
AM_CONFIG_HEADER(src/config.h)
AC_PROG_LIBTOOL


AC_CONFIG_FILES(
	Makefile
	doc/Makefile
	src/Makefile
	)

uname=`uname`

case $uname in
  Linux*)
    WANT_SYSINFO=yes
    ;;
  FreeBSD*)
    WANT_KVM=yes
    WANT_DEVSTAT=yes
    ;;
  NetBSD*)
    WANT_KVM=yes
    WANT_OSSLIB=yes
    ;;
# Solaris doesn't work at all right now

#  SunOS*)
#    WANT_KSTAT=yes
#    ;;

  *)
    echo "Your operating system $uname isn't supported"
    echo "Feel free to help. :P"
    exit 1
    ;;
esac

AM_CONDITIONAL(BUILD_LINUX, test x$uname = xLinux)
AM_CONDITIONAL(BUILD_SOLARIS, test x$uname = xSunOS)
AM_CONDITIONAL(BUILD_FREEBSD, test x$uname = xFreeBSD)
AM_CONDITIONAL(BUILD_NETBSD, test x$uname = xNetBSD)

dnl
dnl XFT option
dnl

want_xft=no
AC_ARG_ENABLE(xft,
[  --enable-xft            enable if you want to use Xft [default=no]],
  [want_xft="$enableval"])

dnl
dnl OWN_WINDOW option
dnl

dah=yes
AC_ARG_ENABLE(own_window,
[  --enable-own-window     enable if you want support for creating own window [default=yes]],
  [dah="$enableval"])

if test $dah != "no"; then
  AC_DEFINE(OWN_WINDOW, 1, [Define if you want support for window creating])
fi

dnl
dnl PROC_UPTIME option
dnl

dah=no
AC_ARG_ENABLE(proc_uptime,
[  --enable-proc-uptime    enable using /proc/uptime for uptime [default=no]],
  [dah="$enableval"])

if test $dah = "yes"; then
  AC_DEFINE(PROC_UPTIME, 1, [Define if you want to use /proc/uptime for uptime])
fi

dnl
dnl Seti@Home
dnl

want_seti=no
AC_ARG_ENABLE(seti,
[  --enable-seti           enable if you want SETI at Home stats [default=no]],
  [want_seti="$enableval"])

AM_CONDITIONAL(BUILD_SETI, test x$want_seti == xyes)
if test x$want_seti == xyes; then
  AC_DEFINE(SETI, 1, [Define if you want SETI at Home stats])
fi

dnl
dnl MPD
dnl

want_mpd=no
AC_ARG_ENABLE(mpd,
[  --enable-mpd            enable if you want MPD support [default=no]],
  [want_mpd="$enableval"])

AM_CONDITIONAL(BUILD_MPD, test x$want_mpd == xyes)
if test x$want_mpd == xyes; then
  AC_DEFINE(MPD, 1, [Define if you want MPD support])
fi

dnl
dnl Cairo
dnl

want_cairo=no
AC_ARG_ENABLE(cairo,
[  --enable-cairo          enable if you want Cairo support [default=no]],
  [want_cairo="$enableval"])

AM_CONDITIONAL(BUILD_CAIRO, test x$want_cairo == xyes)


if test "$want_cairo" = "yes"; then
  AC_CHECK_HEADERS([cairo.h cairo-xlib.h], [], [CAIRO_MISSING=yes])
    if test "x$CAIRO_MISSING" = xyes; then
      AC_MSG_ERROR([something went wrong when checking for cairo, you're probably missing headers or it's not installed])
  fi
  AC_PATH_PROG(CAIROCONFIG, pkg-config)
  if test x$CAIROCONFIG != x; then
    dnl TODO: needs more checks

    AC_DEFINE(CAIRO, 1, [Define if you are using Cairo])
    CFLAGS="$CFLAGS `$CAIROCONFIG --cflags cairo` `$CAIROCONFIG --libs cairo` "
    CAIRO_LIBS="`$CAIROCONFIG --libs cairo` `$CAIROCONFIG --cflags cairo`"
  else
    want_cairo=no
  fi
fi


dnl
dnl MLDonkey
dnl

want_mldonkey=no
AC_ARG_ENABLE(mldonkey,
[  --enable-mldonkey       enable if you want MLDonkey support [default=no]],
  [want_mldonkey="$enableval"])

AM_CONDITIONAL(BUILD_MLDONKEY, test x$want_mldonkey == xyes)
if test x$want_mldonkey == xyes; then
  AC_DEFINE(MLDONKEY, 1, [Define if you want MLDonkey support])
fi

dnl
dnl C Compiler
dnl

AC_PROG_CC

dnl
dnl X
dnl

dah=yes
AC_ARG_ENABLE(double_buffer,
[  --enable-double-buffer  enable if you want to support flicker-free operation [default=yes]],
  [dah="$enableval"])

want_x11=yes
AC_ARG_ENABLE(x11,
[  --enable-x11            enable if you want X11 support [default=yes]],
 [want_x11="$enableval"])


AM_CONDITIONAL(BUILD_X11, test x$want_x11)
if test x$want_x11 == xyes; then
	AC_PATH_X
	AC_PATH_XTRA
	CFLAGS="$CFLAGS $X_CFLAGS"
	LIBS="$LIBS $X_LIBS $X11_LIBS"
	LDFLAGS="$LDFLAGS $LIBS $X_PRE_LIBS"
	if test "x$X_DISPLAY_MISSING" = xyes; then
		AC_MSG_ERROR([something went wrong when checking for X11, you're probably missing headers or it's not installed, either re-run configure with --disable-x11, or fix this])
	fi
	AC_DEFINE(X11, 1, [Define if you want to use X11])
	AC_DEFINE(HAVE_X11, 1, [Define if you have X11])
	if test $dah != "no"; then
		AC_DEFINE(DOUBLE_BUFFER, 1, [Define if you want support for the DBE extension])
		AC_CHECK_LIB(Xext, XdbeQueryExtension, [AC_DEFINE([HAVE_XDBE], 1, [Xdbe]) LIBS="$LIBS -lXext"],
		     [AC_MSG_ERROR([something went wrong when checking for Xdbe (double buffer extension)])])
	fi
fi
AM_CONDITIONAL(HAVE_X11, test x$want_x11)



dnl
dnl Xft
dnl

if test x$want_xft && test x$want_x11; then
  AC_PATH_PROG(XFTCONFIG, xft-config)
  if test x$XFTCONFIG != x; then
    dnl TODO: needs more checks
  
dnl This won't work for some reason
dnl  AC_CHECK_HEADERS([X11/Xft/Xft.h], [], [XFT_MISSING=yes])
    if test "x$XFT_MISSING" = xyes; then
      AC_MSG_ERROR([something went wrong when checking for Xft, you're probably missing headers or it's not installed])
  fi

    AC_DEFINE(XFT, 1, [Define if you are using Xft])
    CFLAGS="$CFLAGS `$XFTCONFIG --cflags`"
    XFT_LIBS=`$XFTCONFIG --libs`
  else
    want_xft=no
  fi
fi

dnl
dnl KVM
dnl

if test x$WANT_KVM = xyes; then
  AC_CHECK_LIB(kvm, kvm_open,
  	LIBS="$LIBS -lkvm",
	AC_MSG_ERROR([Could not find kvm_open in -lkvm.])
  )
fi

dnl
dnl devstat
dnl

if test x$WANT_DEVSTAT = xyes; then
	AC_CHECK_LIB(devstat, devstat_getversion,
		     LIBS="$LIBS -ldevstat",
		     AC_MSG_ERROR([Cound not find devstat_getversion in -ldevstat.])
	)
fi

dnl
dnl OSSLIB for NetBSD
dnl

if test x$WANT_OSSLIB = xyes; then
    AC_CHECK_LIB(ossaudio, _oss_ioctl,
	LIBS="$LIBS -lossaudio",
	AC_MSG_ERROR([Could not find oss_ioctl in -lossaudio.])
    )
fi

dnl
dnl Some random headers
dnl


AC_CHECK_HEADERS([signal.h unistd.h X11/Xlib.h sys/utsname.h sys/stat.h linux/soundcard.h dirent.h mcheck.h])
AC_CHECK_HEADERS([sys/statfs.h sys/param.h sys/mount.h])
dnl For cairo

dnl
dnl Check doc stuff
dnl

AC_CHECK_PROGS(db2x_xsltproc_cmd, db2x_xsltproc)
AC_CHECK_PROGS(db2x_manxml_cmd, db2x_manxml)
AC_CHECK_PROGS(xsltproc_cmd, xsltproc)
if test x$db2x_xsltproc_cmd = "x" -o x$xsltproc_cmd = "x"; then
	AM_CONDITIONAL(HAVE_DOCSTUFF, false)
else
	AM_CONDITIONAL(HAVE_DOCSTUFF, true)
fi

dnl
dnl Check sysinfo()
dnl

if test x$WANT_SYSINFO = xyes; then
  dah=no
  AC_MSG_CHECKING(for sysinfo)
  AC_TRY_COMPILE(
    [#include <sys/types.h>
     #include <sys/sysinfo.h>],
    [struct sysinfo s; sysinfo(&s); (void) s.uptime; ],
    [AC_MSG_RESULT(yes); dah=yes],
    [AC_MSG_RESULT(not usable); dah=no])

  if test x$dah = xyes; then
    AC_DEFINE(HAVE_SYSINFO, 1, [Define if you have sysinfo (Linux)])
  fi
fi

dnl
dnl kstat in Solaris
dnl

if test x$WANT_KSTAT = xyes; then
  dah=no
  AC_CHECK_LIB([kstat], [kstat_open], [dah=yes], [])

  if test x$dah = xyes; then
    AC_DEFINE(HAVE_KSTAT, 1, [Define if you have kstat (Solaris)])
    LDFLAGS="$LDFLAGS -lkstat"
  fi
fi

AC_DEFUN([AM_LANGINFO_CODESET],
[
  AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
    [AC_TRY_LINK([#include <langinfo.h>],
      [char* cs = nl_langinfo(CODESET);],
      am_cv_langinfo_codeset=yes,
      am_cv_langinfo_codeset=no)
    ])
  if test $am_cv_langinfo_codeset = yes; then
    AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
      [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
  fi
])

dnl
dnl Check getloadavg
dnl

AC_MSG_CHECKING(for getloadavg)
AC_TRY_COMPILE(
  [#include <stdlib.h>],
  [double v[3]; getloadavg(v, 3);],
  [AC_MSG_RESULT(yes)
   AC_DEFINE(HAVE_GETLOADAVG, 1, [Define if you have getloadavg])],
  [AC_MSG_RESULT(no)])

dnl
dnl Check popen
dnl

AC_CHECK_FUNCS(popen)

dnl
dnl Da.
dnl

CFLAGS="$CFLAGS -Wall -W"

AC_SUBST(CFLAGS)
AC_SUBST(X11_LIBS)
AC_SUBST(XFT_LIBS)

AC_OUTPUT