On 09/18/2014 01:00 PM, Adam Strzelecki wrote: > If I understand correctly all modules included via > include/find_package have implicit POLICY PUSH and POP
Yes. > at the EOF. Wouldn't it be reasonable to require all > internal .cmake files to begin with: > > cmake_policy(VERSION 3.1) # or whatever version the module was tested > against > > Then before next release all of these should be checked > against new policies and upgraded to: > > cmake_policy(VERSION 3.2) # next release version Like Nils' proposal, this will not be reliable without full coverage of module functionality in the test suite (which is very hard to do because every find module depends on another external package). It could be done manually on a per-module basis. > Then we can safely drop all these fancy > if("x${var}" STREQUAL "xVALUE") in favor of if(var STREQUAL "VALUE") This can be done with just cmake_policy(SET CMP0054 NEW) at the top of any module that has been ported accordingly. Most policies do not affect CMake syntax, but several have come before this one and there are very few modules that make any explicit mention of cmake_policy. In most cases the module code can be written to work with any policy settings. On 09/17/2014 08:37 AM, Rolf Eike Beer wrote: > Wait, what? This is actually the opposite of what that policy is for, This is true, but will only affect modules that come with CMake that must work regardless of the cmake_minimum_required(VERSION) used in the project. Once a release of CMake contains this policy, project code can require that version of CMake when it is ready and then use the nicer if() tests. -Brad -- 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://public.kitware.com/mailman/listinfo/cmake-developers