(0027553)
Brad King (manager)
2011-10-07 11:31

In "cmake -P" scripting mode CMake is not generating a build system. There is no target toolchain and therefore no target architecture. This is not expected to work.

Does it work in a normal CMakeLists.txt during configuration of a real project?

(0027554)
Scott K Logan (reporter)
2011-10-07 12:04

I'm not sure. I found this bug compiling a ROS [0] package for Point Clouds [1].

Inside the makefile for this "stack," cmake -P is executed on a file with these contents:

find_package (VTK REQUIRED)
execute_process (COMMAND echo ${VTK_INCLUDE_DIRS} COMMAND sed "s/ / -I/g")

EOF

If I understand you correctly, the creator is misusing "cmake -P" and therefore this is not a bug in cmake? If so, how can similar functionality be achieved?

It looks like the developers primarily use Debian (Ubuntu) so this issue never arose for them.

Also, just to clarify, it looks like I failed in spelling "using" in this bug's description.

Thank you for a quick response.

[0] http://www.ros.org/ [^]
[1] http://www.ros.org/wiki/perception_pcl [^]

(0027556)
Brad King (manager)
2011-10-07 12:36

> If I understand you correctly, the creator is misusing "cmake -P" and therefore this is not a bug in cmake?

Correct. It may be possible to make "cmake -P" work for this with enough custom options to find_package but it would be ad-hoc.

As of CMake 2.8.5 the only way to achieve this functionality is to generate a CMakeLists.txt file and actually try to configure a project.

CMake 2.8.6 introduced a new "--find-package" option that is meant specifically for this use case. You or the ROS folks can contact our mailing list at

http://www.cmake.org/mailman/listinfo/cmake [^]

to ask for help using it.

(0027557)
Brad King (manager)
2011-10-07 12:37

Resolving as no change required because this is not actually a CMake bug.

Please contact the previously linked mailing list for further help.

(0028822)
David Cole (manager)
2012-03-06 08:37

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

Issue History
Date Modified	Username	Field	Change
2011-10-06 00:33	Scott K Logan	New Issue
2011-10-07 11:31	Brad King	Note Added: 0027553
2011-10-07 11:31	Brad King	Assigned To	=> Brad King
2011-10-07 11:31	Brad King	Status	new => assigned
2011-10-07 12:04	Scott K Logan	Note Added: 0027554
2011-10-07 12:36	Brad King	Note Added: 0027556
2011-10-07 12:37	Brad King	Note Added: 0027557
2011-10-07 12:37	Brad King	Status	assigned => resolved
2011-10-07 12:37	Brad King	Fixed in Version	=> CMake 2.8.6
2011-10-07 12:37	Brad King	Resolution	open => no change required
2012-03-06 08:37	David Cole	Note Added: 0028822
2012-03-06 08:37	David Cole	Status	resolved => closed

Notes
(0027553) Brad King (manager) 2011-10-07 11:31	In "cmake -P" scripting mode CMake is not generating a build system. There is no target toolchain and therefore no target architecture. This is not expected to work. Does it work in a normal CMakeLists.txt during configuration of a real project?

(0027554) Scott K Logan (reporter) 2011-10-07 12:04	I'm not sure. I found this bug compiling a ROS [0] package for Point Clouds [1]. Inside the makefile for this "stack," cmake -P is executed on a file with these contents: find_package (VTK REQUIRED) execute_process (COMMAND echo ${VTK_INCLUDE_DIRS} COMMAND sed "s/ / -I/g") EOF If I understand you correctly, the creator is misusing "cmake -P" and therefore this is not a bug in cmake? If so, how can similar functionality be achieved? It looks like the developers primarily use Debian (Ubuntu) so this issue never arose for them. Also, just to clarify, it looks like I failed in spelling "using" in this bug's description. Thank you for a quick response. [0] http://www.ros.org/ [^] [1] http://www.ros.org/wiki/perception_pcl [^]

(0027556) Brad King (manager) 2011-10-07 12:36	> If I understand you correctly, the creator is misusing "cmake -P" and therefore this is not a bug in cmake? Correct. It may be possible to make "cmake -P" work for this with enough custom options to find_package but it would be ad-hoc. As of CMake 2.8.5 the only way to achieve this functionality is to generate a CMakeLists.txt file and actually try to configure a project. CMake 2.8.6 introduced a new "--find-package" option that is meant specifically for this use case. You or the ROS folks can contact our mailing list at http://www.cmake.org/mailman/listinfo/cmake [^] to ask for help using it.

(0027557) Brad King (manager) 2011-10-07 12:37	Resolving as no change required because this is not actually a CMake bug. Please contact the previously linked mailing list for further help.

(0028822) David Cole (manager) 2012-03-06 08:37	Closing resolved issues that have not been updated in more than 4 months.

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