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Download and Build Instructions for Qwt 5.2.2 using Visual Studio 2008
Phil Weinstein, CADSWES, 8-24-2012
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Including this work, RiverWare has been build with the following versions of 
Qwt:
  (1) Qwt 5.0.2, with Qt 4.4
  (2) Qwt 5.2.1, with Qt 4.6    (used through RiverWare 6.2)
  (3) Qwt 5.2.2, with Qt 4.8.2  (for RiverWare 6.3)
  
NOTE-1: Rather than using 'nmake', I'm generating Visual Studio .vcproj 
 files from .pro files, and building the libraries in Visual Studio 2008.
  
NOTE-2: I'm not taking time to actually build the examples.  I'm building 
 only the static libraries: 
    C:\Riverware\tools\Qwt-522_Qt-482\lib\qwt.lib
    C:\Riverware\tools\Qwt-522_Qt-482\lib\qwtd.lib

PROCESS:

(1) Download 5.2.2 zip file:
      http://sourceforge.net/projects/qwt/files/qwt/5.2.2/
      qwt-5.2.2.zip  (2011-08-01; 2.9 MB)

(2) Edited qwtconfig.pri (a 'pro' include file) -- significant values:
      INSTALLBASE = C:/RiverWare/tools/Qwt-522_Qt-482
      CONFIG   += debug_and_release
      CONFIG   += build_all
      # CONFIG += QwtDll
      CONFIG   += QwtPlot
      CONFIG   += QwtWidgets
      # CONFIG += QwtSVGItem
      # CONFIG += QwtMathML

(3) [Refer to INSTALL file instructions, Section (B) Win32/MSVC Qt3/Qt4] ...
      Not using nmake. Rather, preparing vcproj files to use with Visual 
      Studio 2008
      ...

(4) Apply SOURCE CODE FIX to qwt_plot_curve.cpp:
      The original version is copied off to: qwt_plot_curve-ORIG.cpp

      Method: void QwtPlotCurve::drawLines(QPainter *painter,
                      const QwtScaleMap &xMap, const QwtScaleMap &yMap, 
                      int from, int to) const ... around line 740
                      
        ================================================================
        for (int i = from; i <= to; i++)
        {
            // CADSWES FIX -- originally developed with Qwt 5.0.2:
            // Change [i] to [i - from].  Without this, our solution to 
            // drawing disjoint curves (having internal NaNs) crashes.
            //            
            //-- WRONG: QwtDoublePoint &p = points[i];
            QwtDoublePoint &p = points[i - from];
            
            p.setX( xMap.xTransform(x(i)) );
            p.setY( yMap.xTransform(y(i)) );
        }
        ================================================================

(5) Confirm ... which qmake.exe
      C:\Riverware\tools\Qt-482\bin\qmake.exe
      (note: 'which' depends on C:\RiverWare\tools\UnxUtils; being on the 
      path).
      
(6) To generate project (vcproj) files: admin\msvc-qmake vc
      ... among other things, this results in the creation of file: 
      ... src\qwtd.vcproj.  Note: the 'd' signifies 'debug' (rather than 
      ... 'release'). But we really don't need a seperate vcproj file for 
      ... 'release'. That can just be toggled within Visual Studio.

(7) In Visual Studio 2008, open the project file: 
      C:\Riverware\tools\Qwt-522_Qt-482\src\qwtd.vcproj
      
      Build >> Clean Solution
      Build >> Build Solution ... acknowledge the saving of the file.
      
      Change from Release to Debug
      Build >> Build Solution
      
(8) For the 64-bit build, notice that these two libraries have been built:
      C:\RiverWare\tools\Qwt-522_Qt-482\src\x64\Release\qwt.lib  (2855 KB)
      C:\RiverWare\tools\Qwt-522_Qt-482\src\x64\Debug\qwtd.lib   (7279 KB)
      
    copy these to where the 32-bit libraries get built:
      C:\RiverWare\tools\Qwt-522_Qt-482\lib\qwtd.lib
      C:\RiverWare\tools\Qwt-522_Qt-482\lib\qwt.lib
      
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