[CMake] CPACK_STRIP_FILES not working for files not built by project

[Ian Monroe]

On Sun, Jan 20, 2013 at 3:44 PM, Ian Monroe <ian at monroe.nu> wrote:
> On Sun, Jan 20, 2013 at 1:03 PM, Eric Noulard <eric.noulard at gmail.com> wrote:
>>
>> "It will only affect the files that were make installed
>>   not the files used by CPack" ?
>>
>> CPack does call "cmake -P cmake_install.cmake" so
>> **all files** packaged by CPack are somehow **installed** previously.
>>
>> CMAKE_INSTALL_PREFIX has a CPack-time value which is set by CPack
>> when installing file on the CPack-private location so you should escape it
>> in order to prevent its evaluation at CMake-time, i.e.
>
> It doesn't seem to work. CMAKE_INSTALL_PREFIX during CPack/RPM time is
> apparently being set to CPACK_PACKAGING_INSTALL_PREFIX, ie a directory
> that doesn't exist since it's just for the resulting RPM. (Unless
> CPack is running inside a chroot of it's own making at that point??)
>
>
> So with something like this in the strip-all-installed-files.cmake
> script being executed via install(SCRIPT...):
> execute_process(COMMAND ls ${CMAKE_INSTALL_PREFIX} OUTPUT_VARIABLE lsresults)
>
> I get an error that the directory doesn't exist.

Or to pose the question more broadly:
I'm pretty sure the directory I actually want with (for instance) RPM
gen is this one:
build/_CPack_Packages/Linux/RPM/project-1.87.0-Linux/${CPACK_PACKAGING_INSTALL_PREFIX}

is there a variable with that in it?