<div>I think I managed to reproduce the problem, partially.</div><div><br></div><div>The file below contains a project which for me reproduces the problem when I use msbuild.</div><div>F7 (Build->BuildSolution) works (builds only once, then next time, it does nothing).</div>
<div><br></div><div>So there is something in the combination of CMake and msbuild which causes the problem.</div><div>We use Incredibuild, which uses msbuild, hence we get the problem also in Incredibuild.</div><div>I do not know the difference between F7 and msbuild though.</div>
<div><br></div><a href="http://rapidshare.com/files/439941435/DependencyBug.rar">http://rapidshare.com/files/439941435/DependencyBug.rar</a><div><br></div><div>Instructions:</div><div><br></div><div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica; font-size: 12px; color: rgb(51, 51, 51); -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; ">1. Unpack dep2.rar into a new empty directory<br>
2. install CMake (2.8.2 or later)<br><a href="http://www.cmake.org/files/v2.8/cmake-2.8.3-win32-x86.exe" target="_blank" style="color: rgb(0, 0, 0); text-decoration: none; font-family: Verdana, Tahoma; font-size: 11px; ">http://www.cmake.org/files/v2.8/cmake-2.8.3-win32-x86.exe</a><br>
3 go to the directory in a command prompt<br>4. execute: cmake .<br>5. msbuild DepBug.sln<br></span><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica; font-size: 12px; color: rgb(51, 51, 51); -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; ">6. msbuild DepBug.sln << Builds everything again from scratch.</span></div>
<div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica; font-size: 12px; color: rgb(51, 51, 51); -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; "><br></span></div>
<div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica; font-size: 12px; color: rgb(51, 51, 51); -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; "><br></span></div>
<div><span class="Apple-style-span" style="font-family: Verdana, Arial, Helvetica; font-size: 12px; color: rgb(51, 51, 51); -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px; ">/A<br></span><div class="gmail_quote">
On Wed, Dec 29, 2010 at 1:26 PM, Anders Backman <span dir="ltr"><<a href="mailto:andersb@cs.umu.se">andersb@cs.umu.se</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Ok, Im already using the nightly build (from Tuesday I believe), as I discovered a bug in CMake yesterday.<div>I will bug M$ too :-)</div><div><br></div><div><font color="#888888">/A</font><div><div></div><div class="h5">
<br><br><div class="gmail_quote">On Wed, Dec 29, 2010 at 1:03 PM, David Cole <span dir="ltr"><<a href="mailto:david.cole@kitware.com" target="_blank">david.cole@kitware.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">For Visual Studio generators, CMake does *NO* depedency analysis. It<br>
generates solution and project files such that Visual Studio can do<br>
all the dependency analysis and decide what to re-build when files<br>
change.<br>
<br>
My advice to you would be:<br>
- use only CMake 2.8.3 or newer (a nightly development build of CMake)<br>
with Visual Studio 10 -- CMake 2.8.2 and earlier had significant bugs<br>
related to VS10 that have since been resolved...<br>
- using a newer CMake, isolate the problem to a minimally reproducible<br>
case and then report a bug in the bug tracker about it including the<br>
steps to reproduce the problem<br>
<br>
Reply here again and point us to the bug.<br>
<br>
<br>
HTH,<br>
David<br>
<div><div></div><div><br>
<br>
On Wed, Dec 29, 2010 at 4:07 AM, Anders Backman <<a href="mailto:andersb@cs.umu.se" target="_blank">andersb@cs.umu.se</a>> wrote:<br>
> Hi all.<br>
> I have a problem where I have a project of C++ headers and source files<br>
> which are built into a .lib .dll.<br>
> Now this works just fine with CMake 2.8.x and VisualStudio 2008.<br>
> I press F7 everything builds. I press F7 again, it is all built, nothing to<br>
> be done.<br>
> But now when I move over to vs2010, I get into problems where no matter how<br>
> I build the project, it constantly want to rebuild everything.<br>
> I have tried both 'msbuild project.sln' from the command line, as well as<br>
> build (F7) inside of VisualStudio as well as using Incredibuild. The result<br>
> is the same. If I press F7, it builds everything as it was not built before.<br>
> I did some googling on the issue, and some suggest that there is a file in<br>
> the project (header) which does not exist on disk, causing the problem.<br>
> We do file(glob) on all files, so a file which is not found, should not be<br>
> part of the project.<br>
> Right now, it seems to be hard to reduce the problem. When I start from the<br>
> full project, 107 files, it want to rebuild everything.<br>
> When I reduce the problem, I can get down to one single file, still it wants<br>
> to build it. Its a c file, and there is nothing special about it. I even<br>
> managed to reduce that down to one function, no includes. still the same<br>
> problem.<br>
> If I copy the relevant files (a few cmakelists.txt and the directory<br>
> structure, including the two files (.h .c) it builds as it should again.<br>
> I tried to run cmake and generate vs2008 files, that works. Open them in<br>
> vs2010, build, then that works (with the two files only).<br>
><br>
> So anyway, before I put you all to sleep, as far as I know, there are two<br>
> dependency parsers involved here:<br>
> - CMake runs through source files and generates dependencies, right?<br>
> - THen visual studio does the same (generating the External dependencies<br>
> folder in the project). Now there is SOMETHING wrong in either one, or both<br>
> or none related to VS2010.<br>
> Does someone have any hints on how to debug this problem? I have spent<br>
> substantial time, and I cant seem to get anywhere.<br>
> I cant reduce it to something I can post on the list, as it just magically<br>
> works when I want to rip it out.<br>
> At one point, I had 3 cmakelists, each with about 3 lines. 2 source files<br>
> (.h .c), I did clean on CMakeCache.txt between each cmake . run, loaded the<br>
> project build and got the error. Fairly simple scene. But as soon as I try<br>
> to move that to another dir, it fails.<br>
> Thankful for any advice on the matter.<br>
><br>
> --<br>
><br>
><br>
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</blockquote></div><br><br clear="all"><br></div></div>-- <br><br>
</div>
</blockquote></div><br><br clear="all"><br>-- <br>__________________________________________<br>Anders Backman, CTO Algoryx Simulation AB<br>Uminova Science Park, Box 7973, SE-907 19 <br>Umeå, Sweden<br><a href="mailto:anders@algoryx.se">anders@algoryx.se</a> <a href="http://www.algoryx.se">http://www.algoryx.se</a> <br>
Cell: +46-70-392 64 67<br>
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