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], [5])

dnl [svn] for versions with svn revision numbers, e.g. 1.4.5-svn-r00790
dnl [rc1] for release candidates, e.g. 1.4.5-rc1
dnl [] for releases, e.g. 1.4.5
m4_define([conky_version_tag], [svn])

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
dnl C Compiler
dnl

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

AC_PROG_CC
AC_PROG_LIBTOOL
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([--enable-own-window], [enable if you 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 PROC_UPTIME option
dnl

AC_ARG_ENABLE([proc_uptime],
    AC_HELP_STRING([--enable-proc-uptime], [enable using /proc/uptime for uptime [[default=yes]]]),
    [dah="$enableval"], [dah=yes])

if test $dah = "yes"; then
  AC_DEFINE(PROC_UPTIME, 1, [Define if you want to use /proc/uptime for uptime])
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([--enable-hddtemp], [enable if you 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([--enable-mpd], [enable if you 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 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([--enable-portmon], [enable if you want tcp (ip4) port monitoring [[default=yes]]]),
    [want_portmon="$enableval"], [want_portmon=yes])

AM_CONDITIONAL(BUILD_PORT_MONITORS, test x$want_portmon = xyes)
if test x$want_portmon = xyes; then
  	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
  	AC_DEFINE(TCP_PORT_MONITOR, 1, [Define if you want tcp port monitoring support])
fi


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"
fi

dnl
dnl X11
dnl

AC_ARG_ENABLE([x11],
    AC_HELP_STRING([--enable-x11], [enable if you 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([--enable-double-buffer], [enable for flicker-free operation [[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
	    AC_MSG_ERROR([--enable-x11 is required for double-buffering])
    fi
    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


dnl
dnl Xdamage Extension
dnl

AC_ARG_ENABLE([xdamage],
    AC_HELP_STRING([--enable-xdamage], [enable if you 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
	    AC_MSG_ERROR([--enable-x11 is required for xdamage])
    fi
    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


dnl
dnl Xft
dnl

AC_ARG_ENABLE([xft],
    AC_HELP_STRING([--enable-xft], [enable if you 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
	    AC_MSG_ERROR([--enable-x11 is required for xft])
    fi
    PKG_CHECK_MODULES(XFT, [xft])
    CFLAGS="$CFLAGS $XFT_CFLAGS"
    LIBS="$LIBS $XFT_LIBS"
    AC_DEFINE(XFT, 1, [Define for Xft support])
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
		  ])
dnl
dnl Some functions
dnl

AC_CHECK_FUNCS([calloc malloc free popen])
AC_SEARCH_LIBS(clock_gettime, [rt], [], AC_MSG_ERROR([clock_gettime() not found]))


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 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  

EOF