dnl $Id$ 

dnl major, minor and micro version macros.
m4_define([conky_version_major], [1])
m4_define([conky_version_minor], [4])
m4_define([conky_version_micro], [7])
m4_define([conky_version_tag], [svn]) dnl [] for releases
m4_define([conky_version_revision],[r@REVISION@])
m4_define([conky_version], 
    [conky_version_major().conky_version_minor().conky_version_micro()ifelse(
      conky_version_tag(), [svn], 
      [-conky_version_tag()-conky_version_revision()],
      [ifelse(conky_version_tag(), [], [], [-conky_version_tag()])])])

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

AM_INIT_AUTOMAKE(conky, conky_version())
AM_CONFIG_HEADER(src/config.h)

dnl prevent libtool setting LTCFLAGS to default of -g -O2 when CFLAGS unset.
dnl libtool must be deleted with make distclean to see this fix.
if test x"$CFLAGS" = x""; then
  AC_SUBST(CFLAGS, [ ])
fi

dnl
dnl Tools
dnl
AC_PROG_CC
AC_PROG_LD
AC_PROG_INSTALL
AC_PROG_LIBTOOL

AC_CHECK_PROG(HAVE_PKGCONFIG, pkg-config, yes, no)
if test x"$HAVE_PKGCONFIG" = x"no"; then
  AC_MSG_ERROR([pkg-config is required!])
fi
PKG_PROG_PKG_CONFIG([0.17.2])

AC_CONFIG_FILES(
  Makefile
  doc/Makefile
  src/Makefile
  src/build.h
  )

uname=`uname`

case $uname in
  Linux*)
    WANT_SYSINFO=yes
    ;;
  FreeBSD*)
    WANT_KVM=yes
    WANT_DEVSTAT=yes
    ;;
#  NetBSD*)
#    WANT_KVM=yes
#    WANT_OSSLIB=yes
#    ;;

  OpenBSD*)
    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)
AM_CONDITIONAL(BUILD_OPENBSD, test x$uname = xOpenBSD)

BUILD_DATE=$(LANG=en_US LC_ALL=en_US LOCALE=en_US date)
BUILD_ARCH="$(uname -sr) ($(uname -m))"
AC_SUBST(BUILD_DATE)
AC_SUBST(BUILD_ARCH)


dnl
dnl OWN_WINDOW option
dnl

AC_ARG_ENABLE([own_window],
              AC_HELP_STRING([--disable-own-window], 
                             [disable if you do not want support for creating own window @<:@default=yes@:>@]),
              [dah="$enableval"], [dah=yes])

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


dnl
dnl Audacious Media Player
dnl

AC_ARG_ENABLE([audacious],
              AC_HELP_STRING([--enable-audacious], [enable audacious player support @<:@default=no@:>@]),
              [want_audacious="$enableval"], [want_audacious=no])

AM_CONDITIONAL(BUILD_AUDACIOUS, test x$want_audacious = xyes)
if test x$want_audacious = xyes; then
  PKG_CHECK_MODULES([AUDACIOUS], [audacious >= 0.1])
      CFLAGS="$CFLAGS $AUDACIOUS_CFLAGS"
      LIBS="$LIBS $AUDACIOUS_LIBS"
      AC_DEFINE(AUDACIOUS, 1, [Define for Audacious support])
fi


dnl
dnl BMPx
dnl

AC_ARG_ENABLE([bmpx],
              AC_HELP_STRING([--enable-bmpx], [enable if you want BMPx support @<:@default=no@:>@]),
              [want_bmpx="$enableval"], [want_bmpx=no])

AM_CONDITIONAL(BUILD_BMPX, test x$want_bmpx = xyes)
if test x$want_bmpx = xyes; then
  PKG_CHECK_MODULES([BMPX], [bmp-2.0 >= 0.14.0])
  CFLAGS="$CFLAGS $BMPX_CFLAGS"
  LIBS="$LIBS $BMPX_LIBS"
  AC_DEFINE(BMPX, 1, [Define if you want BMPx support])
fi


dnl
dnl Hddtemp
dnl

AC_ARG_ENABLE([hddtemp],
              AC_HELP_STRING([--disable-hddtemp], 
                             [disable if you do not want hddtemp support @<:@default=yes@:>@]),
              [want_hddtemp="$enableval"], [want_hddtemp=yes])

AM_CONDITIONAL(BUILD_HDDTEMP, test x$want_hddtemp = xyes)
if test x$want_hddtemp = xyes; then
  AC_DEFINE(HDDTEMP, 1, [Define if you want hddtemp support])
fi

dnl
dnl MPD
dnl

AC_ARG_ENABLE([mpd],
              AC_HELP_STRING([--disable-mpd], [disable if you do not want MPD support @<:@default=yes@:>@]),
              [want_mpd="$enableval"], [want_mpd=yes])

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 XMMS2
dnl

AC_ARG_ENABLE([xmms2],
              AC_HELP_STRING([--enable-xmms2], [enable if you want XMMS2 support @<:@default=no@:>@]),
              [want_xmms2="$enableval"], [want_xmms2=no])

AM_CONDITIONAL(BUILD_XMMS2, test x$want_xmms2 = xyes)
if test x$want_xmms2 = xyes; then
  PKG_CHECK_MODULES([XMMS2], [xmms2-client])
    CFLAGS="$CFLAGS $XMMS2_CFLAGS"
    LIBS="$LIBS $XMMS2_LIBS"
    AC_DEFINE(XMMS2, 1, [Define if you want XMMS2 support])
fi

dnl
dnl RSS
dnl

AC_ARG_ENABLE([rss],
	      AC_HELP_STRING([--enable-rss], [enable if you want rss support @<:@default=no@:>@]),
	      [want_rss="$enableval"], [want_rss=no])
#
AM_CONDITIONAL(BUILD_RSS, test x$want_rss = xyes)
if test x$want_rss = xyes; then
	WANT_GLIB=yes
	PKG_CHECK_MODULES(RSS, libxml-2.0 libcurl,,exit)
	CFLAGS="$CFLAGS $RSS_CFLAGS"
	LIBS="$LIBS $RSS_LIBS"
	AC_DEFINE(RSS, 1, [Define if you want rss support])
fi

dnl
dnl Wireless extensions
dnl

AC_ARG_ENABLE([wlan],
	      AC_HELP_STRING([--enable-wlan], [enable if you want wireless support @<:@default=no@:>@]),
	      [want_wlan="$enableval"], [want_wlan=no])
#
AM_CONDITIONAL(BUILD_WLAN, test x$want_wlan = xyes)
if test x$want_wlan = xyes; then
	LIBS="$LIBS -liw"
	AC_DEFINE(HAVE_IWLIB, 1, [Define if you want wireless support])
fi

dnl
dnl IMLIB2
dnl

dnl --commented out until brenden finishes it --
dnl AC_ARG_ENABLE([imlib2],
dnl    AC_HELP_STRING([--enable-imlib2], [enable if you want Imlib2 support [[default=no]]]),
dnl    [want_imlib2="$enableval"], [want_imlib2=no])
dnl
dnl AM_CONDITIONAL(BUILD_IMLIB2, test x$want_imlib2 = xyes)
dnl if test x$want_imlib2 = xyes; then
dnl PKG_CHECK_MODULES([Imlib2], [imlib2])
dnl CFLAGS="$CFLAGS $Imlib2_CFLAGS"
dnl LIBS="$LIBS $Imlib2_LIBS"
dnl AC_DEFINE(IMLIB2, 1, [Define if you want Imlib2 support])
dnl fi


dnl
dnl PORT_MONITORS
dnl

AC_ARG_ENABLE([portmon],
              AC_HELP_STRING([--disable-portmon], 
                             [disable if you do not want tcp (ip4) port monitoring @<:@default=yes@:>@]),
              [want_portmon="$enableval"], [want_portmon=yes])

if test x"$want_portmon" = xyes; then
  if test x"$uname" != xLinux; then
      AC_MSG_NOTICE([port monitors not supported on $uname... disabling])
      want_portmon=no
  else
        AC_CHECK_HEADERS([netdb.h netinet/in.h netinet/tcp.h sys/socket.h arpa/inet.h], [], 
           [PORT_MONITORS_MISSING=yes])
        if test x"$PORT_MONITORS_MISSING" = xyes; then
              AC_MSG_ERROR([missing a needed network header for port monitoring])
        fi
	WANT_GLIB=yes
	AC_DEFINE(TCP_PORT_MONITOR, 1, [Define if you want tcp port monitoring support])
  fi
fi
AM_CONDITIONAL(BUILD_PORT_MONITORS, test x"$want_portmon" = xyes)


dnl
dnl ICONV
dnl

AM_ICONV
if test "$am_cv_func_iconv" != yes; then
  AC_MSG_WARN([Could not find libiconv])
else
  LIBS="$LIBS $LIBICONV"
fi

dnl
dnl debug
dnl

AC_ARG_ENABLE([debug], 
              AC_HELP_STRING([--enable-debug], [compile with debug symbols @<:@default=no@:>@]),
              [want_debug="$enableval"], [want_debug=no])

if test "x$want_debug" = "xyes" -a $ac_cv_c_compiler_gnu != no; then
  CFLAGS="$CFLAGS -g3"
  AC_DEFINE([DEBUG], [], [Define for debugging])
fi

dnl
dnl X11
dnl

AC_ARG_ENABLE([x11],
              AC_HELP_STRING([--disable-x11], [disable if you do not want X11 support @<:@default=yes@:>@]),
              [want_x11="$enableval"], [want_x11=yes])

AM_CONDITIONAL(BUILD_X11, test x$want_x11 = xyes)
if test "x$want_x11" = "xyes"; then
    if $PKG_CONFIG --exists x11; then
      PKG_CHECK_MODULES([X11], [x11])
      CFLAGS="$CFLAGS $X11_CFLAGS"
      LIBS="$LIBS $X11_LIBS"
    else
      dnl non-modular X11 installations
      AC_PATH_X
      AC_PATH_XTRA
      CFLAGS="$CFLAGS $X_CFLAGS"
      LIBS="$LIBS $X_LIBS"
      LDFLAGS="$LDFLAGS $LIBS $X_PRE_LIBS"
      if test "x$no_x" = "xyes"; then
        AC_MSG_ERROR([Can't locate your X11 installation])
      fi
      AC_CHECK_LIB([X11], [XOpenDisplay], [], AC_MSG_ERROR([Could not find XOpenDisplay in -lX11]))
    fi
    AC_DEFINE(X11, 1, [Define if you want to use X11])
fi
  

dnl
dnl Xext Double-buffering Extension
dnl

AC_ARG_ENABLE([double_buffer],
              AC_HELP_STRING([--disable-double-buffer], 
                             [disable for no Xdbe double-buffering support @<:@default=yes@:>@]),
              [want_double_buffer="$enableval"], [want_double_buffer=yes])

if test "x$want_double_buffer" = "xyes"; then
    if test "x$want_x11" != "xyes"; then
      dnl silently disable if no x11
      want_double_buffer=no
    else 
      if $PKG_CONFIG --exists xext; then
        PKG_CHECK_MODULES([XEXT],[xext])
        CFLAGS="$CFLAGS $XEXT_CFLAGS"
        LIBS="$LIBS $XEXT_LIBS"
      else
        dnl non-modular X11 installation
        AC_CHECK_LIB([Xext], [XdbeQueryExtension], [LIBS="$LIBS -lXext"], 
                    AC_MSG_ERROR([Could not find XdbeQueryExtension in -lXext]))
      fi
      AC_DEFINE(HAVE_XDBE, 1, [Define for X11 double-buffering])
    fi
fi


dnl
dnl Xdamage Extension
dnl

AC_ARG_ENABLE([xdamage],
              AC_HELP_STRING([--disable-xdamage], 
                             [disable if you do not want Xdamage support @<:@default=yes@:>@]),
              [want_xdamage="$enableval"], [want_xdamage=yes])

if test "x$want_xdamage" = "xyes"; then
    if test "x$want_x11" != "xyes"; then
      dnl silently disable if no x11
      want_xdamage=no
    else 
      if $PKG_CONFIG --exists xdamage; then
        PKG_CHECK_MODULES([XDAMAGE],[xdamage])
        CFLAGS="$CFLAGS $XDAMAGE_CFLAGS"
        LIBS="$LIBS $XDAMAGE_LIBS"
      else
        dnl non-modular X11 installation
        AC_CHECK_LIB([Xdamage], [XDamageQueryExtension], [LIBS="$LIBS -lXdamage"],
                     AC_MSG_ERROR([Could not find XDamageQueryExtension in -lXdamage]))
      fi
      AC_DEFINE(HAVE_XDAMAGE, 1, [Define for X11 Xdamage extension])
    fi
fi


dnl
dnl Xft
dnl

AC_ARG_ENABLE([xft],
              AC_HELP_STRING([--disable-xft], [disable if you do not want to use Xft @<:@default=yes@:>@]),
              [want_xft="$enableval"], [want_xft=yes])

if test x$want_xft = "xyes"; then
    if test "x$want_x11" != "xyes"; then
      dnl silently disable if no x11
      want_xft=no
    else 
      PKG_CHECK_MODULES(XFT, [xft])
      CFLAGS="$CFLAGS $XFT_CFLAGS"
      LIBS="$LIBS $XFT_LIBS"
      AC_DEFINE(XFT, 1, [Define for Xft support])
    fi
fi

dnl
dnl GLIB
dnl

if test x$WANT_GLIB = xyes; then
	PKG_CHECK_MODULES([GLIB], [glib-2.0])
        CFLAGS="$CFLAGS $GLIB_CFLAGS"
	LIBS="$LIBS $GLIB_LIBS"
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/OpenBSD
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 headers
dnl

AC_CHECK_HEADERS([signal.h unistd.h sys/utsname.h sys/stat.h linux/soundcard.h dirent.h mcheck.h \
      sys/statfs.h sys/param.h pthread.h assert.h errno.h time.h])
AC_CHECK_HEADERS([sys/mount.h], [], [],
     [#ifdef HAVE_SYS_PARAM_H
      #include <sys/param.h>
      #endif
      ])

AC_DEFINE([_GNU_SOURCE], [], [Define for GNU source and extensions])

dnl
dnl Some functions
dnl

AC_CHECK_FUNCS([calloc malloc free popen sysinfo getloadavg memrchr])
AC_SEARCH_LIBS(clock_gettime, [rt], 
               [AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [Define if you have clock_gettime()])],
               [AC_CHECK_FUNCS([gettimeofday], [], [AC_MSG_ERROR([gettimeofday() not available!])])], [])


dnl
dnl Check for zlib
dnl

AC_CHECK_HEADER(zlib.h,
		[],
		[AC_MSG_ERROR([zlib is missing; please install the headers first])])


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 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 * Linker optimizations *
dnl ************************
AC_MSG_CHECKING([if $LD accepts -O1])
case `$LD -O1 -v 2>&1 </dev/null` in
*GNU* | *BSD*)
  LDFLAGS="$LDFLAGS -Wl,-O1"
  AC_MSG_RESULT([yes])
  ;;
*)
  AC_MSG_RESULT([no])
  ;;
esac


dnl
dnl Da.
dnl

CFLAGS="$CFLAGS -Wall -W"

AC_SUBST(CFLAGS)
AC_SUBST(X11_LIBS)

AC_OUTPUT

dnl
dnl Print summary
dnl
cat << EOF

$PACKAGE $VERSION configured successfully:

 Installing into:   $prefix
 C compiler flags:  $CFLAGS
 Linker flags:      $LDFLAGS
 Libraries:         $LIBS

 * x11:
  x11 support:      $want_x11
  xdamage support:  $want_xdamage
  xdbe support:     $want_double_buffer
  xft support:      $want_xft

 * music detection:
  audacious:        $want_audacious
  bmpx:             $want_bmpx
  mpd:              $want_mpd
  xmms2:            $want_xmms2

 * general:
  hddtemp:          $want_hddtemp
  portmon:          $want_portmon  
  RSS:		    $want_rss
  wireless:         $want_wlan
EOF