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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello Folks,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>A little while ago I introduced a change in how CMake handles
backwards compatibility. In version 1.4 CMake would by default allow all old
commands to be used. Only when you did CMAKE_MINIMUM_REQUIRED(VERSION 1.4)
would it become strict. The problem with this approach was that people would
write CMakeList files not knowing that they were using old deprecated commands.
In CMake 1.6 we have changed the approach so that by default CMake is strict
and doesn’t allow old commands. It places a variable in the cache called
CMAKE_BACKWARDS_COMPATABILITY which defaults to the current version of CMake.
If a CMakeList file uses an old command a nice warning (or error depending on
how old it is) appears indicating what to do to fix the problem. You can either
update the CMakeLists.txt file or just set the value of
CMAKE_BACKWARDS_COMPATABILITY to the version specified in the warning message. On
the good side the commands that were in CMake 1.4 are all in CMake 1.6. I don’t
think we had to deprecate any commands in 1.6. Some variables changed which has
caused some issues but the actual commands seem to be becoming more stable.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Ken</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Ken Martin</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>, PhD</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Kitware</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> Inc.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>518 371 3971 x101</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>469 </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Clifton</span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Corporate Pkwy</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Clifton Park</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>NY</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>12065</span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
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