Add abakus

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/abakus@1071969 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
11 years ago · 8bec1dda93
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 Michael Pyne <michael.pyne@kdemail.net>
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 		    GNU GENERAL PUBLIC LICENSE
 		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
               59 Temple Place, Suite 330, Boston, MA  02110-1301  USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

 			    Preamble

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   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains
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 			    NO WARRANTY

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 		     END OF TERMS AND CONDITIONS

 	    How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it
 free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
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 convey the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) 19yy  <name of author>

    This program is free software; you can redistribute it and/or modify
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 Also add information on how to contact you by electronic and paper mail.

 If the program is interactive, make it output a short notice like this
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    Gnomovision version 69, Copyright (C) 19yy name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

 The hypothetical commands `show w' and `show c' should show the appropriate
 parts of the General Public License.  Of course, the commands you use may
 be called something other than `show w' and `show c'; they could even be
 mouse-clicks or menu items--whatever suits your program.

 You should also get your employer (if you work as a programmer) or your
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 necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

 This General Public License does not permit incorporating your program into
 proprietary programs.  If your program is a subroutine library, you may
 consider it more useful to permit linking proprietary applications with the
 library.  If this is what you want to do, use the GNU Library General
 Public License instead of this License.
--- a/+ 183
+++ b/+ 183
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 abakus, by Michael Pyne <michael.pyne@kdemail.net>
 Version: 0.91

 This is my attempt at creating a light-calculator based on Roberto Alsina's
 initial usability suggestions, and based on the ideas of a few other KDE
 hackers.

 This software is distributed under the terms of the GNU GPL v2.

 Synopsis:
 $ tar xvjf abakus-0.91.tar.bz2
 $ cd abakus-0.91
 $ ./configure && make && make install
 $ abakus

 Type away, and press Enter to see the result.

 Changes since 0.90:
 * Add ability to remove all functions and variables to the context menus of
  their respective list boxes.
 * Convert out-of-range numbers to NaN.
 * Accept "," as a decimal separator for the benefit of European users.
 * Use correct decimal separator (per KLocale settings) in output.
 * For long results, show the beginning instead of the end of the result,
  since the beginning is the most significant part of the result.

 Changes since 0.85:
 * You now have the option of using the GNU Multiple Precision library for
  high-precision mathematics.  It requires the MPFR library to also be
  installed (normally comes with GNU MP 4.x).  It is used automatically if
  detected.
 * Jes Hall has contributed DocBook documentation to make Abakus integrate into
  KDE even more tightly.  Thanks, Jes!
 * User defined functions can now be defined over.
 * Error handling with deriv() function improved.
 * Ariya Hidayat's name was misspelled everywhere in Abakus.  Sorry, Ariya. :(
 * Speaking of Ariya, Abakus now uses the impressive user interface code from
  his SpeedCrunch calculator (http://speedcrunch.berlios.de/).  This includes
  the Calc-as-you-Type tooltip, the function and variable dropdown, and
  syntax highlighting.  It's not configurable at this point, expect that in
  the next release.
 * You can use the F6 key to select the expression editor if you're a big fan
  of the keyboard.
 * Raising negative numbers to integral powers should work with the internal
  high-precision library now.
 * You can no longer deselect the current precision menu item.
 * Fix crash bug when a user-defined function refers to another user-defined
  function, and then you remove or edit the function it referred to.
 * Add exact numerical derivatives for all functions supported.
 * Added the asinh, acosh, and atanh functions.
 * Fixed bug with loading of prior compact mode status.
 * Fixed bug where result text had wrong precision when you changed the
  precision and tried drag-and-drop.
 * Drag-and-drop improvements.
 * Fixed bug where Custom Precision menu entry was checked even if you canceled
  the dialog.
 * Made hyperbolic functions consistently ignore trigonometric mode.  (Both
  Degrees and Radians make no sense for hyperbolic trig).
 * Whew! :)

 v0.85 adds a lot:
 * Improvements to the configure script.  Since I didn't end up using libCLN it
  was mostly for naught, but the changes will be useful for the future.
 * abakus now uses the high-precision math routines from Ariya Hidayat's
  SpeedCrunch program.  Thanks, Ariya!
 * High precision arithmetic can have between 0 and 75 digits of precision.
 * Support for approximate derivatives.  For most functions the derivatives will
  be numerically accurate.  For those functions where I didn't feel like typing
  in the exact form of the derivative an approximation is used instead.
 * Implicit multiplication has been added to the parser.  That means you can
  type stuff like "3 sin pi" without having to manually add the * in between
  3 and sin.  This also works with numbers and variables, and numbers and
  parenthesized expressions.
 * GUI changes.  The main result view now uses KListView, so it gains tooltip
  support for long answers for free, along with a bevy of other improvements.
 * You can right-click on an answer and copy it to the clipboard.
 * Corrected information in the about box.
 * Restarting abakus with compact mode enabled should is much improved.

 v0.80.2 fixed an issue with the configure script for people who don't have
 exactly the same version of Python I do, and forcibly prevents flex/bison
 errors.

 v0.80.1 fixed an issue with the configure script for people who don't already
 have scons installed.

 Major changes since 0.76:
 * There is no more C code to interface between the parser and program.
 * RPN mode is improved.  Now the stack is retained between calls, and there
  are a few commands only in RPN mode:
    1. pop   - Return the top of the stack.
    2. clear - Clear the stack.
 * bksys is used instead of the custom Makefiles.
 * Lots of code cleanups, including license headers.
 * The nifty drag-and-drop image looks more rectangular, and is used with the
  two listviews on the right as well.
 * Improved error checking, with messages that should hopefully be more
  descriptive.

 Major changes since 0.75:
 * Reorder internal macro so that functions are declared *before* they're
  referenced, which helps build the program on systems with math.h files that
  don't export the long double version of their math functions.
 * Hitting a number or letter key right after evaluating an expression in RPN
  mode automatically prepends the 'ans' variable, which was a feature of the
  Normal mode.

 Major changes since 0.70:
 * Build system switched (somehow) to using qmake.  The parser and lexer are
  still included, so bison and flex are still not required.  Hopefully this
  will improve the ease of building.  Of course, this means no more colored
  make output.
 * Changed most of the keyboard shortcuts to use Shift + Alt + foo instead of
  Alt + foo since that was interfering with the menu bar.
 * RPN mode!!  If you enable RPN mode, then your expressions will be evaluated
  using the Reverse Polish Notation popular with users of HP calculators.  Note
  that although you can use values and functions while in RPN mode, you cannot
  set or remove them from the expression editor like you can in normal mode.
 * abakus will display a small token starting with a dollar sign ($) in italics
  next to results.  You can use these tokens to quickly reference a result in
  your expression.  The most recent result is always $0, with the number
  increasing from most recent to least recent result.  For example, typing
  2 <Enter> 3 <Enter> $0 ^ $1 <Enter> would give a result of 9.
 * You can right click on functions and values in the list views to remove them
  from the GUI.
 * Changed the result items to use word wrapping when needed to fit all the
  text.
 * Very small DCOP interface.
 * More code cleanup.
 * Added a .desktop file.
 * Test client removed again.
 * Double-clicking on an error message (or OK message) no longer inserts them
  into the edit box.

 Major changes since 0.61:
 * User defined Functions.
 * Save state of program between runs.
 * Miscellaneous fun stuff.

 Currently implemented features:
 * Parser built using flex and bison.  The generated files are included so it
  should compile fine for you.
 * Fully C++.  The parser and lexer code require C++ to compile.
 * Supports several built-in functions:
   - sin, cos, tan, sinh, cosh, tanh, asin, acos, atan in either radian or
         degree mode.
     abs, exp (e raised to the given power), ln, log (base 10),
     sqrt, ceil, floor
 * Supported operators: +, -, *, /, ^ (or **).
 * Includes a window showing the values and user-defined functions you have.
 * Predefined constants: pi, and e (Euler' constant).
 * You can assign to variables by using an expression of the form:
  identifier = expression.  You can then reuse these variables later.
 * You can create user-defined functions of one variable using the syntax
  set foo(var) = <expr>, where <expr> calculates the value in terms of var.
 * You can delete user-defined variables by doing: remove var
 * You can delete user-defined functions by doing: remove foo().  Notice that
  the variable is NOT included in that expression.
 * Functions and variables are saved on exit, and then loaded when abakus is
  started again.
 * The ans variable contains the result of the last computation.
 * Pressing +, -, *, or / immediately after your last computation automatically
  inserts ans for you, saving you typing.
 * A compact mode for the program.
 * Operator precedence should be correct, including the right association of
  the power operator.  So, 2 ^ 3 ^ 2 == 512, just as it does when you write
  it out.  You can use parentheses to force precedence.
 * Parentheses are not required around functions.  So, sin 3 is a valid
  expression.  Note that sin 3 + cos 4 translates internally as (sin 3) + 
  (cos 4), not as sin (3 + cos (4)).
 * I took some pains to try to make things like 3 + -2 work right.
 * inf and nan are accepted as numeric input for completeness.
 * abakus will automatically add ) characters to the end of the expression as
  needed to balance your expression.  This means that expressions like
  sin (cos (2 + 3 will evaluate with no error.
 * A rudimentary RPN mode is included.  Most everything works, except for
  derivatives and creating functions or new variables.

 Bugs:
 * More functions would be nice.
 * The lexer assumes that the decimal marker is a period. (.)  I'm not exactly
  sure how to cleanly solve this problem with flex. :-(
 * Documentation could be better.
--- a/+ 36
+++ b/+ 36
@ -0,0 +1,36 @@
 #! /usr/bin/env python

 ###################################################################
 # LOAD THE ENVIRONMENT AND SET UP THE TOOLS
 ###################################################################

 ## Load the builders in config
 tools    = [ 'default', 'help', 'generic', 'kde', 'abakus' ]
 toolpath = [ './', './bksys' ]

 # Required as part of SCons
 env = Environment(tools = tools, toolpath = toolpath)

 # Pull in some default settings.
 env.KDEuse("environ rpath nohelp")
 #env.KDEuse("environ rpath lang_qt thread nohelp")

 # If we're asking for help just go ahead and exit now.
 if env['HELP']:
    print env.helpText()
    Exit()

 if env['flex'] and env['bison']:
    env['PARSER_INCLUDED'] = True

 # Export the environment so that SConscript files in subdirs can access it.
 Export('env')

 ###################################################################
 # SCRIPTS FOR BUILDING THE TARGETS
 ###################################################################

 env.subdirs('src')

 env.docfolder('doc/en', 'en', 'abakus/')
 env.SConscript('doc/en/SConscript')
--- a/bksys/abakus.py
+++ b/bksys/abakus.py
@ -0,0 +1,178 @@
 #!/usr/bin/env python

 """
 Run scons -h to display the associated help, or look below ..
 """

 BOLD   ="\033[1m"
 RED    ="\033[91m"
 GREEN  ="\033[92m"
 YELLOW ="\033[1m" #"\033[93m" # unreadable on white backgrounds
 CYAN   ="\033[96m"
 NORMAL ="\033[0m"

 def exists(env):
    return true

 def printColorCoded(msg):
    msg = msg.replace(']', NORMAL)
    msg = msg.replace('b[', BOLD)
    msg = msg.replace('g[', GREEN)
    msg = msg.replace('r[', RED)
    msg = msg.replace('c[', CYAN)
    msg = msg.replace('y[', YELLOW)

    print msg

 def generate(env):
    import SCons.Util, os

    env.addHelpText("""b[hi]
 b[*** abakus options ***
 ----------------------]
 b[* bison=(no|yes): Enable parser support.  Only needed for developers.
 b[* flex=(no|yes): Enable lexer support.  Only needed for developers.
 b[* mpfr=(no|yes|check): Enable the MPFR library, which is faster and more
                         precise than abakus's high-precision code.

 ie: b[scons configure]
 """)

    if env['HELP']:
        # Don't even bother.
        return env

    from SCons.Options import Options, PackageOption, EnumOption
    import os

    def CheckFlags(context):
        context.Message('Checking if ld supports --as-needed... ')
        lastLINKFLAGS = context.env['LINKFLAGS']
        context.env.Append(LINKFLAGS = '-Wl,--as-needed')

        ret = context.TryLink("""
 #include <iostream>
 using namespace std;
 int main()
 {
    cout << "Test" << endl;
 }
 """, ".cpp")
        if not ret:
            context.env.Replace(LINKFLAGS = lastLINKFLAGS)
        context.Result(ret)
        return ret

    def CheckPath(context, prog, versionFlag = ''):
        if context.env[prog] == 'yes':
            context.env[prog] = prog

        context.Message('Checking for %s... ' % prog)

        ret = True

        # If absolute path, just try this one.
        if prog[0] == '/':
            ret = context.TryAction('%s %s' % (context.env[prog], versionFlag))[0]
            if ret:
                context.Result(ret)
                return True
            
        path = context.env.WhereIs(prog)
        if ret and path != None:
            context.env[prog] = path
            context.Result(1)
        else:
            context.env[prog] = False
            context.Result(0)
        
            print """
 The $foo program was not found!  You asked to use it so we will stop here. It
 is not required, you may use $foo=no on the command line to go without it.""".replace('$foo', prog)

            Exit(1)

            return False
            
        context.Result(1)
        return True

    cachefile = env['CACHEDIR'] + '/abakus.cache.py'

    fixup = lambda x: "%s installed here (yes = search)" % x

    opts = None
    if env.doConfigure():
        opts = Options(None, env['ARGS'])
    else:
        opts = Options(cachefile, env['ARGS'])

    opts.AddOptions(
        PackageOption('bison', fixup('use the Bison parser generator'), 'yes'),
        PackageOption('flex', fixup('use the Flex scanner generator'), 'yes'),
        EnumOption ('mpfr', 'use the MPFR high-precision library', 'check',
                    allowed_values=('yes', 'no', 'check'), map={}, ignorecase=1),
        ('ABAKUS_CONFIGURED', '', 0),
        ('HAVE_ASNEEDED', '', 0)
    )

    # We must manually pass the ARGS in.
    opts.Update(env, env['ARGS'])

    if env.doConfigure() or not env['ABAKUS_CONFIGURED']:
        # Configure stuff
        conf = env.Configure(custom_tests = {'CheckPath': CheckPath, 'CheckFlags' : CheckFlags})

        if env['bison'] and env['bison'] != 'no':
            conf.CheckPath('bison', '-V')
        if env['flex'] and env['flex'] != 'no':
            conf.CheckPath('flex', '-V')
        if env['mpfr'] != 'no':
            oldLibs = conf.env.get('LIBS', '')
            conf.env.AppendUnique(LIBS = 'gmp')

            if conf.CheckLibWithHeader('mpfr', 'mpfr.h', 'c++', '''
 mpfr_t a;
 mpfr_ptr ptr;
 __mpfr_struct debug;

 mpfr_init(a);
 ''', autoadd = True):
                env['mpfr'] = 'yes'
            else:
                conf.env.Replace(LIBS = oldLibs)

                if env['mpfr'] == 'yes':
                    print "Unable to find requested library mpfr!"
                    env.Exit(1)
                else:
                    env['mpfr'] = 'no'

        env['HAVE_ASNEEDED'] = 0
        if conf.CheckFlags():
            env['HAVE_ASNEEDED'] = 1

        env['ABAKUS_CONFIGURED'] = 1
        env = conf.Finish()

        try:
            f = open("config.h", "w+")
            f.write("""/* config.h -- Automatically generated by abakus.py
 * Any changes you make to this file will be overwritten!
 */

 """)
            f.write("/* HAVE_MPFR -- Defined if the MPFR library is being used. */\n")
            if env['mpfr'] == 'yes':
                f.write ("#define HAVE_MPFR 1\n")
            else:
                f.write ("/* #undef HAVE_MPFR */\n")

            f.close()

        except IOError:
            print "Unable to write config.h!"

        opts.Save(cachefile, env)

 # vim: set et ts=8 sw=4:
--- a/bksys/generic.py
+++ b/bksys/generic.py
@ -0,0 +1,498 @@
 ## Thomas Nagy, 2005

 """
 Detect and store the most common options
 * kdecxxflags  : debug=1 (-g) or debug=full (-g3, slower)
  else use the user CXXFLAGS if any, - or -O2 by default
 * prefix : the installation path
 * extraincludes : a list of paths separated by ':'
 ie: scons configure debug=full prefix=/usr/local extraincludes=/tmp/include:/usr/local
 """

 BOLD   ="\033[1m"
 RED    ="\033[91m"
 GREEN  ="\033[92m"
 YELLOW ="\033[1m" #"\033[93m" # unreadable on white backgrounds
 CYAN   ="\033[96m"
 NORMAL ="\033[0m"

 import os, re, types, sys, string, shutil, stat

 import SCons.Defaults
 import SCons.Tool
 import SCons.Util
 from SCons.Script.SConscript import SConsEnvironment
 from SCons.Options import Options, PathOption

 class genobj:
 	def __init__(self, val, env):
 		if not val in "program shlib kioslave staticlib".split():
 			print "unknown genobj given: "+val
 			env.Exit(1)

 		self.type = val
 		self.orenv = env
 		self.env   = None
 		self.executed = 0

 		self.target=''
 		self.src=None

 		self.cxxflags=''
 		self.cflags=''
 		self.includes=''

 		self.linkflags=''
 		self.libpaths=''
 		self.libs=''

 		# vars used by shlibs
 		self.vnum=''
 		self.libprefix=''

 		# a directory where to install the targets (optional)
 		self.instdir=''
 		# ignore the DESTDIR (optional)
 		self.nodestdir=''

 		# change the working directory before reading the targets
 		self.chdir=''

 		# these members are private
 		self.chdir_lock=None
 		self.old_os_dir=''
 		self.old_fs_dir=''
 		self.p_local_shlibs=[]
 		self.p_local_staticlibs=[]
 		self.p_global_shlibs=[]

 		#if not env.has_key('USE_THE_FORCE_LUKE'): env['USE_THE_FORCE_LUKE']=[self]
 		#else: env['USE_THE_FORCE_LUKE'].append(self)

 	def lockchdir(self):
 		if not self.chdir: return
 		self.chdir_lock=1
 		SConfFS=SCons.Node.FS.default_fs
 		self.old_fs_dir=SConfFS.getcwd()
 		self.old_os_dir=os.getcwd()
 		#os.chdir(old_os_dir+'/'+self.chdir)
 		SConfFS.chdir( SConfFS.Dir('#/'+self.chdir), change_os_dir=1)

 	def unlockchdir(self):
 		if not self.chdir: return
 		if self.chdir_lock:
 			#os.chdir(self.old_os_dir)
 			SCons.Node.FS.default_fs.chdir(self.old_fs_dir, change_os_dir=0)
 			self.chdir_lock=None

 	def execute(self):
 		if self.orenv.has_key('DUMPCONFIG'):
 			print self.xml()
 			return

 		self.lockchdir()

 		self.env = self.orenv.Copy()

 		if not self.src or len(self.src) == 0:
 			print RED+"no source file given to object - self.src"+NORMAL
 			self.env.Exit(1)
 		if not self.env.has_key('nosmart_includes'): self.env.AppendUnique(CPPPATH=['./'])
 		if self.type == "kioslave": self.libprefix=''

 		if len(self.includes)>0: self.env.AppendUnique(CPPPATH=self.env.make_list(self.includes))
 		if len(self.cxxflags)>0: self.env.AppendUnique(CXXFLAGS=self.env.make_list(self.cxxflags))
 		if len(self.cflags)>0: self.env.AppendUnique(CCFLAGS=self.env.make_list(self.cflags))

 		llist=self.env.make_list(self.libs)
 		lext='.so .la'.split()
 		sext='.a'.split()
 		for l in llist:
 			sal=SCons.Util.splitext(l)
 			if len(sal)>1:
 				if sal[1] in lext: self.p_local_shlibs.append(sal[0]+'.so')
 				elif sal[1] in sext: self.p_local_staticlibs.append(sal[0]+'.a')
 				else: self.p_global_shlibs.append(l)

 		if len(self.p_global_shlibs)>0: self.env.AppendUnique(LIBS=self.p_global_shlibs)
 		if len(self.libpaths)>0:   self.env.PrependUnique(LIBPATH=self.env.make_list(self.libpaths))
 		if len(self.linkflags)>0:  self.env.PrependUnique(LINKFLAGS=self.env.make_list(self.linkflags))

 		# the target to return
 		ret=None
 		if self.type=='shlib' or self.type=='kioslave':
 			ret=self.env.bksys_shlib(self.target, self.src, self.instdir, 
 				self.libprefix, self.vnum, nodestdir=self.nodestdir)
 		elif self.type=='program':
 			ret=self.env.Program(self.target, self.src)
 			if not self.env.has_key('NOAUTOINSTALL'):
 				self.env.bksys_install(self.instdir, ret, nodestdir=self.nodestdir)
 		elif self.type=='staticlib':
 			ret=self.env.StaticLibrary(self.target, self.src)

 		# we link the program against a shared library made locally, add the dependency
 		if len(self.p_local_shlibs)>0:
 			self.env.link_local_shlib(self.p_local_shlibs)
 			if ret: self.env.Depends( ret, self.p_local_shlibs )
 		if len(self.p_local_staticlibs)>0:
 			self.env.link_local_staticlib(self.p_local_staticlibs)
 			if ret: self.env.Depends( ret, self.p_local_staticlibs )

 		self.unlockchdir()

 ## Copy function that honors symlinks
 def copy_bksys(dest, source, env):
        if os.path.islink(source):
 		#print "symlinking "+source+" "+dest
 		if os.path.islink(dest):
 			os.unlink(dest)
 		os.symlink(os.readlink(source), dest)
 	else:
 		shutil.copy2(source, dest)
 		st=os.stat(source)
 		os.chmod(dest, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
 	return 0

 ## Return a list of things
 def make_list(env, s):
 	if type(s) is types.ListType:
 		return s
 	else:
 		return s.split()

 def exists(env):
 	return true

 def generate(env):
 	## Bksys requires scons 0.96
 	env.EnsureSConsVersion(0, 96)

 	SConsEnvironment.make_list = make_list
 	def doConfigure(env):
 		return not env['HELP'] and (env['_CONFIGURE'] or not env.has_key('ISCONFIGURED'))

 	SConsEnvironment.doConfigure = doConfigure
 	env['HELP']=0
 	if '--help' in sys.argv or '-h' in sys.argv or 'help' in sys.argv:
 		env['HELP']=1
 	
 	env.addHelpText("""
 b[*** Generic options ***
 -----------------------]
 b[* debug  ]: debug=1 (-g) or debug=full (-g3, slower), otherwise use
              environment CXXFLAGS, or -O2 by default.
 b[* prefix ]: the installation path
 b[* extraincludes ]: a list of paths separated by ':'

 ie: b[scons configure debug=full prefix=/usr/local extraincludes=/tmp/include:/usr/local]
 """)
 	
 	## Global cache directory
 	# Put all project files in it so a rm -rf cache will clean up the config
 	if not env.has_key('CACHEDIR'):
 		env['CACHEDIR'] = os.getcwd()+'/cache/'
 	if not os.path.isdir(env['CACHEDIR']):
 		os.mkdir(env['CACHEDIR'])
 	
 	## SCons cache directory
 	# This avoids recompiling the same files over and over again: 
 	# very handy when working with cvs
 	if os.getuid() != 0:
 		env.CacheDir(os.getcwd()+'/cache/objects')

 	#  Avoid spreading .sconsign files everywhere - keep this line
 	env.SConsignFile(env['CACHEDIR']+'/scons_signatures')
 	
 	def makeHashTable(args):
 		table = { }
 		for arg in args:
 			if len(arg) > 1:
 				lst=arg.split('=')
 				if len(lst) < 2:
 					continue
 				key=lst[0]
 				value=lst[1]
 				if len(key) > 0 and len(value) >0:
 					table[key] = value
 		return table

 	env['ARGS']=makeHashTable(sys.argv)

 	## Special trick for installing rpms ...
 	env['DESTDIR']=''
 	if 'install' in sys.argv:
 		dd=''
 		if os.environ.has_key('DESTDIR'):
 			dd=os.environ['DESTDIR']
 		if not dd:
 			if env['ARGS']: dd=env['ARGS']['DESTDIR']
 		if dd:
 			env['DESTDIR']=dd+'/'
 			print CYAN+'** Enabling DESTDIR for the project ** ' + NORMAL + env['DESTDIR']

 	## install symlinks for shared libraries properly
 	env['INSTALL'] = copy_bksys

 	## Use the same extension .o for all object files
 	env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1

 	## load the options
 	cachefile=env['CACHEDIR']+'generic.cache.py'
 	opts = Options(cachefile)
 	opts.AddOptions(
 		( 'GENCCFLAGS', 'C flags' ),
 		( 'GENCXXFLAGS', 'debug level for the project : full or just anything' ),
 		( 'GENLINKFLAGS', 'additional link flags' ),
 		( 'PREFIX', 'prefix for installation' ),
 		( 'EXTRAINCLUDES', 'extra include paths for the project' ),
 		( 'ISCONFIGURED', 'is the project configured' ),
 	)
 	opts.Update(env)
 	
 	# Use this to avoid an error message 'how to make target configure ?'
 	env.Alias('configure', None)

 	# Check if the following command line arguments have been given
 	# and set a flag in the environment to show whether or not it was
 	# given.
 	if 'install' in sys.argv:
 		env['_INSTALL']=1
 	else:
 		env['_INSTALL']=0
 	if 'configure' in sys.argv:
 		env['_CONFIGURE']=1
 	else:
 		env['_CONFIGURE']=0

 	# Configure the environment if needed
 	if doConfigure(env):
 		# be paranoid, unset existing variables
 		for var in "GENCXXFLAGS GENCCFLAGS GENLINKFLAGS PREFIX EXTRAINCLUDES ISCONFIGURED EXTRAINCLUDES".split():
 			if env.has_key(var): env.__delitem__(var)

 		if env['ARGS'].get('debug', None):
 			debuglevel = env['ARGS'].get('debug', None)
 			print CYAN+'** Enabling debug for the project **' + NORMAL
 			if (debuglevel == "full"):
 				env['GENCXXFLAGS'] = ['-DDEBUG', '-g3', '-Wall']
 			else:
 				env['GENCXXFLAGS'] = ['-DDEBUG', '-g', '-Wall']
 		else:
 			if os.environ.has_key('CXXFLAGS'):
 				# user-defined flags (gentooers will be elighted)
 				env['GENCXXFLAGS'] = SCons.Util.CLVar( os.environ['CXXFLAGS'] )
 				env.Append( GENCXXFLAGS = ['-DNDEBUG', '-DNO_DEBUG'] )
 			else:
 				env.Append(GENCXXFLAGS = ['-O2', '-DNDEBUG', '-DNO_DEBUG'])

 		if os.environ.has_key('CFLAGS'):
 			env['GENCCFLAGS'] = SCons.Util.CLVar( os.environ['CFLAGS'] )

 		## FreeBSD settings (contributed by will at freebsd dot org)
 		if os.uname()[0] == "FreeBSD":
 			if os.environ.has_key('PTHREAD_LIBS'):
 				env.AppendUnique( GENLINKFLAGS = SCons.Util.CLVar( os.environ['PTHREAD_LIBS'] ) )
 		        else:
 				syspf = os.popen('/sbin/sysctl kern.osreldate')
 				osreldate = int(syspf.read().split()[1])
 				syspf.close()
 				if osreldate < 500016:
 					env.AppendUnique( GENLINKFLAGS = ['-pthread'])
 					env.AppendUnique( GENCXXFLAGS = ['-D_THREAD_SAFE'])
 				elif osreldate < 502102:
 					env.AppendUnique( GENLINKFLAGS = ['-lc_r'])
 					env.AppendUnique( GENCXXFLAGS = ['-D_THREAD_SAFE'])
 				else:
 					env.AppendUnique( GENLINKFLAGS = ['-pthread'])

 		# User-specified prefix
 		if env['ARGS'].has_key('prefix'):
 			env['PREFIX'] = os.path.abspath( env['ARGS'].get('prefix', '') )
 			print (CYAN+'** installation prefix for the project set to : ' +
 			       env['PREFIX'] +' **'+ NORMAL)

 		# User-specified include paths
 		env['EXTRAINCLUDES'] = env['ARGS'].get('extraincludes', None)
 		if env['EXTRAINCLUDES']:
 			print (CYAN+'** extra include paths for the project set to: ' +
 			       env['EXTRAINCLUDES'] +' **'+ NORMAL)

 		env['ISCONFIGURED']=1

 		# And finally save the options in the cache
 		opts.Save(cachefile, env)

 	def bksys_install(lenv, subdir, files, destfile=None, nodestdir=None):
 		""" Install files on "scons install"
 		If the DESTDIR env variable has been set, (e.g. by 
 		"scons install DESTDIR=$CURDIR/debian) then install files to that
 		directory, regardless of where the configure stage showed that
 		files should be installed.
 		This feature is useful for packagers, and users of GNU stow.
 		
 		NB. The DESTDIR will be ignored if NODESTDIR is also set, although
 		the same effect can be acheived by not setting DESTDIR in the first
 		place."""

 		if not env['_INSTALL']:
 			return
 		basedir = env['DESTDIR']
 		if nodestdir or env.has_key('NODESTDIR') : basedir = "/"
 		install_list = None
 		if not destfile:
 			install_list = env.Install(basedir+subdir+'/', files)
 		else:
 			if subdir:
 				install_list = env.InstallAs(basedir+subdir+'/'+destfile, files)
 			else:
 				install_list = env.InstallAs(basedir+'/'+destfile, files)
 		env.Alias('install', install_list)
 		return install_list

 	def build_la_file(target, source, env):
 		""" Action for building libtool files.
 		Writes a .la file, as used by libtool."""
 		dest=open(target[0].path, 'w')
 		sname=source[0].name
 		dest.write("dlname='%s'\n" % sname)
 		if len(env['BKSYS_VNUM'])>0:
 			vnum=env['BKSYS_VNUM']
 			nums=vnum.split('.')
 			src=source[0].name
 			name = src.split('so.')[0] + 'so'
 			strn = src+" "+name+"."+str(nums[0])+" "+name
 			dest.write("library_names='%s'\n" % (strn) )
 		else:
 			dest.write("library_names='%s %s %s'\n" % (sname, sname, sname) )
 		dest.write("old_library=''\ndependency_libs=''\ncurrent=0\n")
 		dest.write("age=0\nrevision=0\ninstalled=yes\nshouldnotlink=no\n")
 		dest.write("dlopen=''\ndlpreopen=''\n")
 		dest.write("libdir='%s'" % env['BKSYS_DESTDIR'])
 		dest.close()
 		return 0

 	def string_la_file(target, source, env):
 		print "building '%s' from '%s'" % (target[0].name, source[0].name)
 	la_file = env.Action(build_la_file, string_la_file, ['BKSYS_VNUM', 'BKSYS_DESTDIR'])
 	env['BUILDERS']['LaFile'] = env.Builder(action=la_file,suffix='.la',src_suffix=env['SHLIBSUFFIX'])

 	## Function for building shared libraries
 	def bksys_shlib(lenv, target, source, libdir, libprefix='lib', vnum='', noinst=None, nodestdir=None):
 		""" Install a shared library.
 		
 		Installs a shared library, with or without a version number, and create a
 		.la file for use by libtool.
 		
 		If library version numbering is to be used, the version number
 		should be passed as a period-delimited version number (e.g.
 		vnum = '1.2.3').  This causes the library to be installed
 		with its full version number, and with symlinks pointing to it.
 		
 		For example, for libfoo version 1.2.3, install the file
 		libfoo.so.1.2.3, and create symlinks libfoo.so and
 		libfoo.so.1 that point to it.
 		"""
 		thisenv = lenv.Copy() # copying an existing environment is cheap
 		thisenv['BKSYS_DESTDIR']=libdir
 		thisenv['BKSYS_VNUM']=vnum
 		thisenv['SHLIBPREFIX']=libprefix

 		if len(vnum)>0:
 			thisenv['SHLIBSUFFIX']='.so.'+vnum
 			thisenv.Depends(target, thisenv.Value(vnum))

 		# Fix against a scons bug - shared libs and ordinal out of range(128)
 		if type(source) is types.ListType:
 			src2=[]
 			for i in source:
 				src2.append( str(i) )
 			source=src2

 		library_list = thisenv.SharedLibrary(target, source)
 		lafile_list  = thisenv.LaFile(target, library_list)

 		## Install the libraries automatically
 		if not thisenv.has_key('NOAUTOINSTALL') and not noinst:
 			thisenv.bksys_install(libdir, library_list, nodestdir=nodestdir)
 			thisenv.bksys_install(libdir, lafile_list, nodestdir=nodestdir)	

 		## Handle the versioning
 		if len(vnum)>0:
 			nums=vnum.split('.')
 			symlinkcom = ('cd $TARGET.dir && ' +
 			              'rm -f $TARGET.name && ' +
 			              'ln -s $SOURCE.name $TARGET.name')
 			tg = target+'.so.'+vnum
 			nm1 = target+'.so'
 			nm2 = target+'.so.'+nums[0]
 			
 			thisenv.Command(nm1, tg, symlinkcom)
 			thisenv.Command(nm2, tg, symlinkcom)

 			#base=env['DESTDIR']+libdir+'/'
 			thisenv.bksys_install(libdir, nm1, nodestdir=nodestdir)
 			thisenv.bksys_install(libdir, nm2, nodestdir=nodestdir)

 	# Declare scons scripts to process
 	def subdirs(lenv, folderlist):
 		flist=[]
 		if type(folderlist) is types.ListType: flist = folderlist
 		else: flist = folderlist.split()
 		for i in flist:
 			lenv.SConscript(i+"/SConscript")

        def link_local_shlib(lenv, str):
                """ Links against a shared library made in the project """
                lst = lenv.make_list(str)
 		for file in lst:
 			import re
 			reg = re.compile("(.*)/lib(.*).(la|so)")
 			result = reg.match(file)
 			if not result:
 				print "Unknown la file given "+file
 				continue
 			dir  = result.group(1)
 			link = result.group(2)
 			lenv.AppendUnique(LIBS = [link])
 			lenv.PrependUnique(LIBPATH = [dir])

        def link_local_staticlib(lenv, str):
                """ Links against a shared library made in the project """
                lst = lenv.make_list(str)
 		for file in lst:
 			import re
 			reg = re.compile("(.*)/(lib.*.a)")
 			result = reg.match(file)
 			if not result:
 				print "Unknown archive file given "+file
 				continue

 			f=SCons.Node.FS.default_fs.File(file)
 			lenv.Append(LINKFLAGS=[f.path])

 	#valid_targets = "program shlib kioslave staticlib".split()
        SConsEnvironment.bksys_install = bksys_install
 	SConsEnvironment.bksys_shlib   = bksys_shlib
 	SConsEnvironment.subdirs       = subdirs
 	SConsEnvironment.link_local_shlib = link_local_shlib
 	SConsEnvironment.link_local_staticlib = link_local_staticlib

 	SConsEnvironment.genobj=genobj

 	if env.has_key('GENCXXFLAGS'):
 		env.PrependUnique( CXXFLAGS = env['GENCXXFLAGS'] )

 	if env.has_key('GENCCFLAGS'):
 		env.AppendUnique( CCFLAGS = env['GENCCFLAGS'] )

 	if env.has_key('GENLINKFLAGS'):
 		env.AppendUnique( LINKFLAGS = env['GENLINKFLAGS'] )

 	if env.has_key('EXTRAINCLUDES'):
 		if env['EXTRAINCLUDES']:
 			incpaths = []
 			for dir in str(env['EXTRAINCLUDES']).split(':'):
 				incpaths.append( dir )
 			env.Append(CPPPATH = incpaths)

 	env.Export('env')
--- a/bksys/help.py
+++ b/bksys/help.py
@ -0,0 +1,43 @@
 ## Thomas Nagy, 2005

 """
 Detect and store the most common options
 * kdecxxflags  : debug=1 (-g) or debug=full (-g3, slower)
  else use the user CXXFLAGS if any, - or -O2 by default
 * prefix : the installation path
 * extraincludes : a list of paths separated by ':'
 ie: scons configure debug=full prefix=/usr/local extraincludes=/tmp/include:/usr/local
 """

 BOLD   ="\033[1m"
 RED    ="\033[91m"
 GREEN  ="\033[92m"
 YELLOW ="\033[1m" #"\033[93m" # unreadable on white backgrounds
 CYAN   ="\033[96m"
 NORMAL ="\033[0m"

 def exists(env):
 	return true

 def generate(env):
 	## Bksys requires scons 0.96
 	env.EnsureSConsVersion(0, 96)

 	env._help = ''

 	def addHelpText(env, text):
 		env._help = env._help + text

 	def helpText(env):
 		text = env._help.replace(']', NORMAL)
 		text = text.replace('b[', BOLD)
 		text = text.replace('g[', GREEN)
 		text = text.replace('r[', RED)
 		text = text.replace('y[', YELLOW)
 		text = text.replace('c[', CYAN)

 		return text

 	from SCons.Script.SConscript import SConsEnvironment
 	SConsEnvironment.addHelpText = addHelpText
 	SConsEnvironment.helpText = helpText
--- a/bksys/kde.py
+++ b/bksys/kde.py
@ -0,0 +1,820 @@
 # Made from scons qt.py and (heavily) modified into kde.py
 # Thomas Nagy, 2004, 2005 <tnagy2^8@yahoo.fr>

 """
 Run scons -h to display the associated help, or look below ..
 """

 BOLD   ="\033[1m"
 RED    ="\033[91m"
 GREEN  ="\033[92m"
 YELLOW ="\033[1m" #"\033[93m" # unreadable on white backgrounds
 CYAN   ="\033[96m"
 NORMAL ="\033[0m"

 import os, re, types
 from SCons.Script.SConscript import SConsEnvironment

 # Returns the name of the shared object (i.e. libkdeui.so.4)
 # referenced by a libtool archive (like libkdeui.la)
 def getSOfromLA(lafile):
 	contents = open(lafile, 'r').read()
 	match = re.search("^dlname='([^']*)'$", contents, re.M)
 	if match:
 		return match.group(1)
 	return None

 # A helper, needed .. everywhere
 def KDEuse(lenv, flags):
 	if lenv['HELP']: lenv.Exit(0)

 	_flags=lenv.make_list(flags)
 	if 'environ' in _flags:
 		## The scons developers advise against using this but it is mostly innocuous :)
 		lenv.AppendUnique( ENV = os.environ )
 	if not 'lang_qt' in _flags:
 		## Use this define if you are using the kde translation scheme (.po files)
 		lenv.Append( CPPFLAGS = '-DQT_NO_TRANSLATION' )
 	if 'rpath' in _flags:
 		## Use this to set rpath - this may cause trouble if folders are moved (chrpath)
 		lenv.Append( RPATH = [lenv['QTLIBPATH'], lenv['KDELIBPATH'], lenv['KDEMODULE']] )
 		kdelibpaths=[]
 		if lenv['KDELIBPATH'] == lenv['KDELIB']:
 			kdelibpaths = [lenv['KDELIB']]
 		else:
 			kdelibpaths = [lenv['KDELIBPATH'],  lenv['KDELIB']]
 		lenv.Append( RPATH = [lenv['QTLIBPATH'], lenv['KDEMODULE']]+kdelibpaths )
 	if 'thread' in _flags:
 		## Uncomment the following if you need threading support
 		lenv.KDEaddflags_cxx( ['-DQT_THREAD_SUPPORT', '-D_REENTRANT'] )
 	if 'fastmoc' in _flags:
 		lenv['BKSYS_FASTMOC']=1
 	if not 'nohelp' in _flags:
 		if lenv['_CONFIGURE'] or lenv['HELP']:
 			lenv.Exit(0)
 	if not 'nosmart' or not lenv.has_key('nosmart_includes'):
 		lenv.AppendUnique(CPPPATH=['#/'])
 		lst=[]
 		if lenv.has_key('USE_THE_FORCE_LUKE'):
 			lst=lenv['USE_THE_FORCE_LUKE']
 			lenv.__delitem__('USE_THE_FORCE_LUKE')
 		for v in lst:
 			v.execute()
 	else:
 			lenv['nosmart_includes']=1

 	## To use kdDebug(intvalue)<<"some trace"<<endl; you need to define -DDEBUG
 	## it is done in admin/generic.py automatically when you do scons configure debug=1

 def exists(env):
 	return True

 def detect_kde(env):
 	""" Detect the qt and kde environment using kde-config mostly """
        def getpath(varname):
                if not env.has_key('ARGS'): return None
                v=env['ARGS'].get(varname, None)
                if v: v=os.path.abspath(v)
                return v

        prefix      = getpath('prefix')
        execprefix  = getpath('execprefix')
        datadir     = getpath('datadir')
        libdir      = getpath('libdir')
        kdeincludes = getpath('kdeincludes')
        kdelibs     = getpath('kdelibs')
        qtincludes  = getpath('qtincludes')
        qtlibs      = getpath('qtlibs')
        libsuffix   = ''
        if env.has_key('ARGS'): libsuffix=env['ARGS'].get('libsuffix', '')

 	if libdir: libdir = libdir+libsuffix

 	## Detect the kde libraries
 	print "Checking for kde-config           : ",
 	kde_config = os.popen("which kde-config 2>/dev/null").read().strip()
 	if len(kde_config):
 		print GREEN+"kde-config was found"+NORMAL
 	else:
 		print RED+"kde-config was NOT found in your PATH"+NORMAL
 		print "Make sure kde is installed properly"
 		print "(missing package kdebase-devel?)"
 		env.Exit(1)
 	env['KDEDIR'] = os.popen('kde-config -prefix').read().strip()

 	print "Checking for kde version          : ",
 	kde_version = os.popen("kde-config --version|grep KDE").read().strip().split()[1]
 	if int(kde_version[0]) != 3 or int(kde_version[2]) < 2:
 		print RED+kde_version
 		print RED+"Your kde version can be too old"+NORMAL
 		print RED+"Please make sure kde is at least 3.2"+NORMAL
 	else:
 		print GREEN+kde_version+NORMAL

 	## Detect the qt library
 	print "Checking for the qt library       : ",
 	qtdir = os.getenv("QTDIR")
 	if qtdir:
 		print GREEN+"qt is in "+qtdir+NORMAL
 	else:
 		try:
 			tmplibdir = os.popen('kde-config --expandvars --install lib').read().strip()
 			libkdeuiSO = tmplibdir+'/'+getSOfromLA(tmplibdir+'/libkdeui.la')
 			m = re.search('(.*)/lib/libqt.*', os.popen('ldd ' + libkdeuiSO + ' | grep libqt').read().strip().split()[2])
 		except:
 			m=None
 		if m:
 			qtdir = m.group(1)
 			print YELLOW+"qt was found as "+m.group(1)+NORMAL
 		else:
 			print RED+"qt was not found"+NORMAL
 			print RED+"Please set QTDIR first (/usr/lib/qt3?) or try scons -h for more options"+NORMAL
 			env.Exit(1)
 	env['QTDIR'] = qtdir.strip()

 	## Find the necessary programs uic and moc
 	print "Checking for uic                  : ",
 	uic = qtdir + "/bin/uic"
 	if os.path.isfile(uic):
 		print GREEN+"uic was found as "+uic+NORMAL
 	else:
 		uic = os.popen("which uic 2>/dev/null").read().strip()
 		if len(uic):
 			print YELLOW+"uic was found as "+uic+NORMAL
 		else:
 			uic = os.popen("which uic 2>/dev/null").read().strip()
 			if len(uic):
 				print YELLOW+"uic was found as "+uic+NORMAL
 			else:
 				print RED+"uic was not found - set QTDIR put it in your PATH ?"+NORMAL
 				env.Exit(1)
 	env['QT_UIC'] = uic

 	print "Checking for moc                  : ",
 	moc = qtdir + "/bin/moc"
 	if os.path.isfile(moc):
 		print GREEN + "moc was found as " + moc + NORMAL
 	else:
 		moc = os.popen("which moc 2>/dev/null").read().strip()
 		if len(moc):
 			print YELLOW + "moc was found as " + moc + NORMAL
 		elif os.path.isfile("/usr/share/qt3/bin/moc"):
 			moc = "/usr/share/qt3/bin/moc"
 			print YELLOW + "moc was found as " + moc + NORMAL
 		else:
 			print RED + "moc was not found - set QTDIR or put it in your PATH ?" + NORMAL
 			env.Exit(1)
 	env['QT_MOC'] = moc

 	## check for the qt and kde includes
 	print "Checking for the qt includes      : ",
 	if qtincludes and os.path.isfile(qtincludes + "/qlayout.h"):
 		# The user told where to look for and it looks valid
 		print GREEN + "ok " + qtincludes + NORMAL
 	else:
 		if os.path.isfile(qtdir + "/include/qlayout.h"):
 			# Automatic detection
 			print GREEN + "ok " + qtdir + "/include/ " + NORMAL
 			qtincludes = qtdir + "/include/"
 		elif os.path.isfile("/usr/include/qt3/qlayout.h"):
 			# Debian probably
 			print YELLOW + "the qt headers were found in /usr/include/qt3/ " + NORMAL
 			qtincludes = "/usr/include/qt3"
 		else:
 			print RED + "the qt headers were not found" + NORMAL
 			env.Exit(1)

 	print "Checking for the kde includes     : ",
 	kdeprefix = os.popen("kde-config --prefix").read().strip()
 	if not kdeincludes:
 		kdeincludes = kdeprefix+"/include/"
 	if os.path.isfile(kdeincludes + "/klineedit.h"):
 		print GREEN + "ok " + kdeincludes + NORMAL
 	else:
 		if os.path.isfile(kdeprefix+"/include/kde/klineedit.h"):
 			# Debian, Fedora probably
 			print YELLOW + "the kde headers were found in " + kdeprefix + "/include/kde/" + NORMAL
 			kdeincludes = kdeprefix + "/include/kde/"
 		else:
 			print RED + "The kde includes were NOT found" + NORMAL
 			env.Exit(1)

 	# kde-config options
 	kdec_opts = {'KDEBIN'    : 'exe',     'KDEAPPS'      : 'apps',
 		     'KDEDATA'   : 'data',    'KDEICONS'     : 'icon',
 		     'KDEMODULE' : 'module',  'KDELOCALE'    : 'locale',
 		     'KDEKCFG'   : 'kcfg',    'KDEDOC'       : 'html',
 		     'KDEMENU'   : 'apps',    'KDEXDG'       : 'xdgdata-apps',
 		     'KDEMIME'   : 'mime',    'KDEXDGDIR'    : 'xdgdata-dirs',
 		     'KDESERV'   : 'services','KDESERVTYPES' : 'servicetypes',
 		     'KDEINCLUDE': 'include'
 		     }

 	if prefix:
 		## use the user-specified prefix
 		if not execprefix:
 			execprefix = prefix
 		if not datadir:
 			datadir=prefix+"/share"
 		if not libdir:
 			libdir=execprefix+"/lib"+libsuffix

 		subst_vars = lambda x: x.replace('${exec_prefix}', execprefix)\
 			     .replace('${datadir}', datadir)\
 			     .replace('${libdir}', libdir)
 		debian_fix = lambda x: x.replace('/usr/share', '${datadir}')
 		env['PREFIX'] = prefix
 		env['KDELIB'] = libdir
 		for (var, option) in kdec_opts.items():
 			dir = os.popen('kde-config --install ' + option).read().strip()
 			if var == 'KDEDOC': dir = debian_fix(dir)
 			env[var] = subst_vars(dir)

 	else:
 		env['PREFIX'] = os.popen('kde-config --expandvars --prefix').read().strip()
 		env['KDELIB'] = os.popen('kde-config --expandvars --install lib').read().strip()
 		for (var, option) in kdec_opts.items():
 			dir = os.popen('kde-config --expandvars --install ' + option).read().strip()
 			env[var] = dir

 	env['QTPLUGINS']=os.popen('kde-config --expandvars --install qtplugins').read().strip()

 	## kde libs and includes
 	env['KDEINCLUDEPATH']=kdeincludes
 	if not kdelibs:
 		kdelibs=os.popen('kde-config --expandvars --install lib').read().strip()
 	env['KDELIBPATH']=kdelibs

 	## qt libs and includes
 	env['QTINCLUDEPATH']=qtincludes
 	if not qtlibs:
 		qtlibs=qtdir+"/lib"+libsuffix
 	env['QTLIBPATH']=qtlibs

 def generate(env):
 	""""Set up the qt and kde environment and builders - the moc part is difficult to understand """

 	# attach this function immediately
 	SConsEnvironment.KDEuse = KDEuse
 	env.addHelpText("""
 b[*** KDE options ***
 -------------------]
 b[* prefix     ]: base install path,         ie: /usr/local
 b[* execprefix ]: install path for binaries, ie: /usr/bin
 b[* datadir    ]: install path for the data, ie: /usr/local/share
 b[* libdir     ]: install path for the libs, ie: /usr/lib
 b[* libsuffix  ]: suffix of libraries on amd64, ie: 64, 32
 b[* kdeincludes]: path to the kde includes (/usr/include/kde on debian, ...)
 b[* qtincludes ]: path to the for qt includes (/usr/include/qt on debian, ...)
 b[* kdelibs    ]: path to the kde libs, for linking the programs
 b[* qtlibs     ]: path to the qt libs, for linking the programs

 ie: b[scons configure libdir=/usr/local/lib qtincludes=/usr/include/qt]
 """)

 	import SCons.Defaults
 	import SCons.Tool
 	import SCons.Util
 	import SCons.Node

 	CLVar = SCons.Util.CLVar
 	splitext = SCons.Util.splitext
 	Builder = SCons.Builder.Builder
 	
 	# Detect the environment - replaces ./configure implicitely and store the options into a cache
 	from SCons.Options import Options
 	cachefile=env['CACHEDIR']+'kde.cache.py'
 	opts = Options(cachefile)
 	opts.AddOptions(
 		('PREFIX', 'root of the program installation'),

 		('QTDIR', ''),
 		('QTLIBPATH', 'path to the qt libraries'),
 		('QTINCLUDEPATH', 'path to the qt includes'),
 		('QT_UIC', 'uic command'),
 		('QT_MOC', 'moc command'),
 		('QTPLUGINS', 'uic executable command'),

 		('KDEDIR', ''),
 		('KDELIBPATH', 'path to the installed kde libs'),
 		('KDEINCLUDEPATH', 'path to the installed kde includes'),

 		('KDEBIN', 'inst path of the kde binaries'),
 		('KDEINCLUDE', 'inst path of the kde include files'),
 		('KDELIB', 'inst path of the kde libraries'),
 		('KDEMODULE', 'inst path of the parts and libs'),
 		('KDEDATA', 'inst path of the application data'),
 		('KDELOCALE', ''), ('KDEDOC', ''), ('KDEKCFG', ''),