[cmake-developers] project file conflict;An ah-hah moment

[J Decker]

for a while I've had an occasional issue something like....

LINK : fatal error LNK1104: cannot open file
'C:\general\build\vs10-x86\sack\debug_solution\video_link\Debug\video_link
_server.ilk'
[C:\general\build\vs10-x86\sack\debug_solution\video_link\video_link_server.vcxproj]

I usually get these on systems with bad virus detection software that holds
files open too long.  This is a multiply-opened file.

I guess I can fix this by separating one of the projects into a
subdirectory which would change the name.

This is somewhat timing sensitive; and a second build always worked.  The
initial build did not always fail.

Basically what I have is...

-------- Begin CMakeLists.txt ----------------

cmake_minimum_required(VERSION 2.8)

file( WRITE source.c "void f( void ){ printf( \"hello world\" ); }\n" )
file( APPEND source.c "void __stdcall WinMain( void*a,void*b,int c,int d ){
printf( \"hello world\" ); }" )

ADD_EXECUTABLE( video_link_server WIN32 source.c )

ADD_LIBRARY( video_link_server.isp SHARED source.c )

# commenting this out also makes it not happen; but should not affect the
incremental link file name...
SET_TARGET_PROPERTIES( video_link_server.isp PROPERTIES
                       SUFFIX ""
                     )

---------------- End ------------------------



Output

M:\tmp\cmake_crash\test5-overlapproject\build>cmake-gui ..
<click configure, generate>

M:\tmp\cmake_crash\test5-overlapproject\build>cmake --build .

Microsoft (R) Visual Studio Version 10.0.40219.1.
Copyright (C) Microsoft Corp. All rights reserved.
1>------ Build started: Project: ZERO_CHECK, Configuration: Debug Win32
------
1>  Checking Build System
1>  CMake does not need to re-run because
M:/tmp/cmake_crash/test5-overlapproject/build/CMakeFiles/generate.stamp is
up-
to-date.
2>------ Build started: Project: video_link_server, Configuration: Debug
Win32 ------
3>------ Build started: Project: video_link_server.isp, Configuration:
Debug Win32 ------
2>  Building Custom Rule
M:/tmp/cmake_crash/test5-overlapproject/cmakelists.txt
2>  CMake does not need to re-run because
M:\tmp\cmake_crash\test5-overlapproject\build\CMakeFiles\generate.stamp is
up-
to-date.
2>  source.c
2>..\source.c(1): warning C4013: 'printf' undefined; assuming extern
returning int
3>  Building Custom Rule
M:/tmp/cmake_crash/test5-overlapproject/cmakelists.txt
3>  CMake does not need to re-run because
M:\tmp\cmake_crash\test5-overlapproject\build\CMakeFiles\generate.stamp is
up-
to-date.
3>  source.c
3>..\source.c(1): warning C4013: 'printf' undefined; assuming extern
returning int
*
*
*3>LINK : fatal error LNK1104: cannot open file
'M:\tmp\cmake_crash\test5-overlapproject\build\Debug\video_link_server.il*k'


2>  video_link_server.vcxproj ->
M:\tmp\cmake_crash\test5-overlapproject\build\Debug\video_link_server.exe
4>------ Build started: Project: ALL_BUILD, Configuration: Debug Win32
------
4>  Building Custom Rule
M:/tmp/cmake_crash/test5-overlapproject/cmakelists.txt
4>  CMake does not need to re-run because
M:\tmp\cmake_crash\test5-overlapproject\build\CMakeFiles\generate.stamp is
up-
to-date.
4>  Build all projects
========== Build: 3 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
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