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.
> 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?
As I understand your code, only in call of cmake, e.g. at configuration time.
Kornel
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