Move the Version member to the top cmLocalVisualStudioGenerator class
and set it consistently for instances created by all the global
generator versions. Use an enumeration type with values scaled by a
factor of 10 so we can handle VS 7.1 without out-of-order numbers.
VS 7.1 support for SuppressStartupBanner was broken by commit 25116a3c
(Fix CMAKE_VERBOSE_MAKEFILE for VS10 vcxproj files, 2011-10-11) because
it assumed comparison of VS version numbers works. Now it does.
The setlocal/endlocal and errorlevel pattern added by commit 06fcbc47
(VS10: Fix working directory of consecutive custom commands, 2011-04-08)
does not work well in VS 7.1. Restore the original behavior for VS
versions that do not need the new behavior.
The VS 10 msbuild tool uses a single command shell to invoke all the
custom command scripts in a project. Isolate the environment and
working directory of custom commands using setlocal/endlocal. The
form of each command is
set errlev=
setlocal
cd c:\work\dir
if %errorlevel% neq 0 goto :cmEnd
c:
if %errorlevel% neq 0 goto :cmEnd
command1 ...
if %errorlevel% neq 0 goto :cmEnd
...
commandN ...
if %errorlevel% neq 0 goto :cmEnd
:cmEnd
endlocal & set errlev=%errorlevel%
if %errlev% neq 0 goto :VCEnd
so that all changes to the environment and working directory are
isolated within the script and the return code is preserved.
In VS9 and previous versions, :VCReportError is the goto label
to jump to after a failed custom command. It stops the build
before it tries to go any further.
In VS10, :VCEnd is the correct label to use.
Create a method in the VS generators to provide the correct
line of script to use for each version of Visual Studio.
For more internal details, search for VCEnd in the
C:\Program Files\MSBuild directory.
This converts the CMake license to a pure 3-clause OSI-approved BSD
License. We drop the previous license clause requiring modified
versions to be plainly marked. We also update the CMake copyright to
cover the full development time range.