Hi Kornel, On Wednesday, November 13, 2013 11:08 AM, cmake-boun...@cmake.org wrote: > Am Mittwoch, 13. November 2013 um 18:41:03, schrieb David Hauck > <dav...@netacquire.com> >> Hi Kornel, >> >> On Wednesday, November 13, 2013 10:26 AM, cmake- > boun...@cmake.org wrote: >>> Am Mittwoch, 13. November 2013 um 18:12:26, schrieb David Hauck >>> <dav...@netacquire.com> >>>> Hello, >>>> >>>> I've been using several "install (CODE "EXECUTE_PROCESS ...")" >>>> constructs >>> in my top-level CMakeLists.txt file. However, I've been unable to >>> capture/operate on any exit status of the embedded command. >>> Unfortunately, documentation/searches haven't turned up any useful >>> pointers. The closest I've come is a pointer in the following thread: >>>> http://www.cmake.org/pipermail/cmake/2011-July/045475.html However, >>>> I've not been able to sufficiently read between the lines to get >>>> this working. >>>> >>>> Does anyone have any thoughts on how to get something like the >>>> following working: >>>> >>>> install (CODE "EXECUTE_PROCESS ( >>>> COMMAND ant ... >>>> WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/java >>>> ERROR_VARIABLE _err >>> >>> Didn't you mean 'RESULT_VARIABLE' here? >> >> No, I really do mean ERROR_VARIABLE (unless, of course, this variable >> does > not include the non-zero exit status of the EXECUTE_PROCESS command?). > > If you run 'cmake --help-command execute_process', you see: ... If > RESULT_VARIABLE is given the variable will be set to contain the > result of running the processes. This will be an integer return code > from the last child or a string describing an error condition. ... So, > if this is not "0", then you have an error condition.
Yes, I see this. I also assumed that the ERROR_VARIABLE would be returning non-zero text as well in this case. I will change to using RESULT_VARIABLE, but, in both cases, it seems that I'm referencing the variable incorrectly (either syntactically or in the incorrect context) since this/these is/are always <empty>. >> BTW, I'm still curious about the (dual 'code') construct generally. >> Specifically, if I do the following I never see the fatal error >> message (so I'm wondering if there's still something wrong regarding >> the scoping of the message command)? >> >> install (CODE "EXECUTE_PROCESS ( >> COMMAND ant ... >> WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/java >> ERROR_VARIABLE _err >> ) >> MESSAGE( FATAL_ERROR \"err: ${_err}\") > > Never did this. When do you want to see the message? Ideally, I want to be able to test for the result of this variable (either ERROR_VARIABLE or RESULT_VARIABLE) after the execute_process command completes (during 'make install') to determine its result and to terminate (with error message) when the command fails. Thanks, -David > As I understand your code, only in call of cmake, e.g. at configuration time. > > Kornel -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake