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IDProjectCategoryView StatusDate SubmittedLast Update
0015640CMakeCMakepublic2015-07-07 11:042016-01-04 11:52
ReporterJames Johnston 
Assigned ToBrad King 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionfixed 
PlatformVisual C++ 2008 ExpressOSWindows 7 64-bitOS VersionWindows 7 SP1
Product VersionCMake 3.2.3 
Target VersionCMake 3.4Fixed in VersionCMake 3.4 
Summary0015640: CMake converts generator from Visual Studio 9 2008 to Visual Studio 10 2010 if ZERO_CHECK fails
DescriptionWhen using CMake with the Visual Studio 9 2008 generator, if the ZERO_CHECK "project" fails (e.g. due to a FATAL_ERROR or whatever in the CMakeLists.txt file), the entire CMake project is converted to Visual Studio 10 2010!

Since the build tree is now in who-knows-what corrupted state, I have no choice but to delete the whole build tree and start over. It's quite time-consuming.

The issue doesn't seem to be easily reproduced outside of the ZERO_CHECK project - e.g. I couldn't figure out how to reproduce it with cmake-gui.exe or cmake.exe.
Steps To Reproduce1. Make a new source tree with the following CMakeLists.txt file:

cmake_minimum_required(VERSION 3.3.0 FATAL_ERROR)
project(TestProject)
#message(FATAL_ERROR "Error")

2. Create empty build tree directory as normal, cd to it, and run:

cmake "-GVisual Studio 9 2008" <path to source tree>

3. Open the generated Visual Studio solution in Visual C++ 2008. (I used Express version).

4. Edit the CMakeLists.txt and remove the comment on "message" so that the CMake configure will fail now.

5. Build the ZERO_CHECK project; note that it fails as expected.

6. Remark out the "message" from CMakeLists.txt so that CMake once again will configure ok.

7. Build the ZERO_CHECK project again. This time, ZERO_CHECK will convert everything over to Visual Studio 2010:
 * The CMake output shown in Visual Studio "Output" pane says "Building for Visual Studio 10 2010".
 * The CMakeCache.txt holds: CMAKE_GENERATOR:INTERNAL=Visual Studio 10 2010
 * Visual Studio 2008 refuses to reload the solution ("created by a newer version of this application and cannot be opened")
 * Examination of the build tree shows a VS2010 solution and VCPROJ/VCXPROJ files side-by-side...
Additional InformationThe problem has been successfully reproduced with both CMake 3.3.0-rc1 and the nightly cmake-3.3.20150706-g32b76-win32-x86 build.
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  Notes
(0039028)
Brad King (manager)
2015-07-07 14:22

 Thanks. This should fix it:

 cmake: Preserve cached CMAKE_GENERATOR when an error occurs
 http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=3b60232e [^]
(0039094)
James Johnston (developer)
2015-07-08 11:39

 Retested with cmake-3.3.20150707-g6e60f-win32-x86 and the problem did not recur.
(0039263)
Andrew Regier (reporter)
2015-08-10 16:19

 Will this fix be included in 3.4, or will there be an updated 3.3 release that includes it? I have seen this bug as well.
(0039266)
Brad King (manager)
2015-08-11 09:20

 Re 0015640:0039263: This will first be released in 3.4.
(0040111)
Robert Maynard (manager)
2016-01-04 11:52

 Closing resolved issues that have not been updated in more than 4 months.

 Issue History
Date Modified Username Field Change
2015-07-07 11:04 James Johnston New Issue
2015-07-07 14:22 Brad King Note Added: 0039028
2015-07-07 14:22 Brad King Assigned To => Brad King
2015-07-07 14:22 Brad King Status new => resolved
2015-07-07 14:22 Brad King Resolution open => fixed
2015-07-07 14:22 Brad King Fixed in Version => CMake 3.4
2015-07-07 14:22 Brad King Target Version => CMake 3.4
2015-07-08 11:39 James Johnston Note Added: 0039094
2015-08-10 16:19 Andrew Regier Note Added: 0039263
2015-08-11 09:20 Brad King Note Added: 0039266
2016-01-04 11:52 Robert Maynard Note Added: 0040111
2016-01-04 11:52 Robert Maynard Status resolved => closed

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