On 14 April 2013 19:12, Damien Cassou damien.cassou@gmail.com wrote:

Hi,

recent CMake versions won't compile the VM. Error message is always:

$ cmake . CMake Error: Could not open file for write in copy operation /CMakeSystem.cmake.tmp CMake Error: : System Error: Permission denied CMake Error at /home/cassou/cmake/Modules/CMakeDetermineSystem.cmake:172 (configure_file): configure_file Problem configuring file Call Stack (most recent call first): CMakeLists.txt:3 (include)

I did a git-bisect of the cmake source code to find which cmake's commit stopped working for the VM. The offending cmake commit is:

commit 7195aca54f40778f41894c9e62649afe09e71d6c Author: Brad King brad.king@kitware.com Date: Fri Aug 24 08:48:59 2012 -0400

Make platform information files specific to the CMake version

At the top of a build tree we configure inside the CMakeFiles directory
files such as "CMakeSystem.cmake" and "CMake<lang>Compiler.cmake" to
save information detected about the system and compilers in use.  The
method of detection and the exact results store varies across CMake
versions as things improve.  This leads to problems when loading files
configured by a different version of CMake.  Previously we ignored such
existing files only if the major.minor part of the CMake version
component changed, and depended on the CMakeCache.txt to tell us the
last version of CMake that wrote the files.  This led to problems if the
user deletes the CMakeCache.txt or we add required information to the
files in a patch-level release of CMake (still a "feature point" release
by modern CMake versioning convention).

Ensure that we always have version-consistent platform information files
by storing them in a subdirectory named with the CMake version.  Every
version of CMake will do its own system and compiler identification
checks even when a build tree has already been configured by another
version of CMake.  Stored results will not clobber those from other
versions of CMake which may be run again on the same tree in the future.
Loaded results will match what the system and language modules expect.

Rename the undocumented variable CMAKE_PLATFORM_ROOT_BIN to
CMAKE_PLATFORM_INFO_DIR to clarify its purpose.  The new variable points
at the version-specific directory while the old variable did not.

I attach the patch of this commit to this email. I have no idea what we can do about it.

remove lines in CMakeLists.txt one by one to see if it can change anything. but i think this is a bug of cmake.

-- Damien Cassou http://damiencassou.seasidehosting.st

"Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill