Fixes the makefiles to install according to the Debian FHS
--- a/doc/Doxyfile.doxygen
+++ b/doc/Doxyfile.doxygen
@@ -116,7 +116,7 @@
 HTML_ALIGN_MEMBERS     = YES
 GENERATE_HTMLHELP      = NO
 CHM_FILE               = qwtplot3d.chm
-HHC_LOCATION           = "c:\Programme\HTML Help Workshop\hhc.exe"
+#HHC_LOCATION           = "c:\Programme\HTML Help Workshop\hhc.exe"
 GENERATE_CHI           = NO
 BINARY_TOC             = YES
 TOC_EXPAND             = YES
@@ -181,7 +181,7 @@
 MACRO_EXPANSION        = NO
 EXPAND_ONLY_PREDEF     = NO
 SEARCH_INCLUDES        = YES
-INCLUDE_PATH           = V:/cvs/qwtplot3d/include/
+INCLUDE_PATH           = ../include/
 INCLUDE_FILE_PATTERNS  = *.h
 PREDEFINED             = QWT3D_NOT_FOR_DOXYGEN \
                          QT_VERSION=0x040000
@@ -212,7 +212,7 @@
 GRAPHICAL_HIERARCHY    = YES
 DIRECTORY_GRAPH        = YES
 DOT_IMAGE_FORMAT       = png
-DOT_PATH               = V:/graphviz/Graphviz/bin/
+#DOT_PATH               = V:/graphviz/Graphviz/bin/
 DOTFILE_DIRS           = 
 MAX_DOT_GRAPH_WIDTH    = 974
 MAX_DOT_GRAPH_HEIGHT   = 10000
--- a/examples/common.pro
+++ b/examples/common.pro
@@ -3,13 +3,17 @@
 UI_DIR = tmp
 MOC_DIR      = tmp
 OBJECTS_DIR  = tmp
-INCLUDEPATH    += ../../include 
-DEPENDPATH	= $$INCLUDEPATH
 DESTDIR = ../bin
 
-unix:LIBS += -lqwtplot3d -L../../lib
 linux-g++:QMAKE_CXXFLAGS += -fno-exceptions
 
+unix{
+  unix:LIBS += -lqwtplot3d-qt4
+  INCLUDEPATH    += /usr/include/qwtplot3d-qt4
+}
+
+DEPENDPATH	= $$INCLUDEPATH
+
 win32{
   LIBS += ../../lib/qwtplot3d.lib
   TEMPLATE  = vcapp
@@ -28,7 +32,7 @@
 ISQT4 = $$find(MYVERSION, ^[2-9])
 
 !isEmpty( ISQT4 ) {
-RESOURCES     = ../images.qrc
+#RESOURCES     = ../images.qrc
 QT += opengl
 }
 
--- a/qwtplot3d.pro
+++ b/qwtplot3d.pro
@@ -1,7 +1,13 @@
 # pro file for building the makefile for qwtplot3d
 #
 
-TARGET            = qwtplot3d
+TARGET            = qwtplot3d-qt4
+# Install directives
+INSTALLBASE	  = /usr
+headers.path      = $$INSTALLBASE/include/qwtplot3d-qt4
+headers.files     = $$HEADERS
+target.path       = $$INSTALLBASE/lib
+INSTALLS          = doc headers target
 TEMPLATE          = lib
 CONFIG           += qt warn_on opengl thread zlib debug
 MOC_DIR           = tmp
@@ -87,9 +93,11 @@
 SOURCES+=src/qwt3d_io_gl2ps.cpp \
          3rdparty/gl2ps/gl2ps.c
 
+unix:LIBS  += -lGLU
+
 # zlib support for gl2ps
 zlib {
   DEFINES += GL2PS_HAVE_ZLIB
   win32:LIBS += zlib.lib
 	unix:LIBS  += -lz
-}
\ No newline at end of file
+}