Commit Graph

9 Commits

Author SHA1 Message Date
Brad King c332e0bf3c ENH: Isolate policy changes in included scripts
Isolation of policy changes inside scripts is important for protecting
the including context.  This teaches include() and find_package() to
imply a cmake_policy(PUSH) and cmake_policy(POP) around the scripts they
load, with a NO_POLICY_SCOPE option to disable the behavior.  This also
creates CMake Policy CMP0011 to provide compatibility.  See issue #8192.
2009-01-22 13:18:40 -05:00
Brad King 3028ca756c ENH: Better policies for functions and macros
This teaches functions and macros to use policies recorded at creation
time when they are invoked.  It restores the policies as a weak policy
stack entry so that any policies set by a function escape to its caller
as before.
2009-01-22 13:16:47 -05:00
Brad King 18eadebc4c ENH: Improve stack discussion in cmake_policy
This re-organizes the discussion of the policy stack in documentation of
the cmake_policy() command.  The new organization clearer and easier to
extend with new information.
2009-01-22 13:16:33 -05:00
Brad King 7f7068e9d4 ENH: Add cmake_policy(GET) command mode
It is likely that projects or CMake modules in the future will need to
check the value of a policy setting.  For example, if we add a policy
that affects the results of FindXYZ.cmake modules, the module code will
need to be able to check the policy.
2008-08-18 09:53:06 -04:00
Brad King 1c0e1702c0 ENH: Improve documentation of cmake_policy command.
- Add a paragraph introducing the policy mechanism
  - Explicitly introduce the CMP<NNNN>, OLD, and NEW notation
  - Note that setting policies by CMake version is preferred
  - Fix SET signature to use CMP<NNNN> notation
  - Add more details about the policy stack
2008-03-17 20:30:47 -04:00
Ken Martin 73df9a5cd4 ENH: change CMP_ to CMP 2008-03-13 11:38:46 -04:00
Brad King 5233b75a77 ENH: Improve handling of old-style compatibility.
- Remove CMP_0001 (no slash in target name) and restore
    old CMAKE_BACKWARDS_COMPATIBILITY check for it
  - Replace all checks of CMAKE_BACKWARDS_COMPATIBILITY
    with cmLocalGenerator::NeedBackwardsCompatibility calls
  - Create new CMP_0001 to determine whether or not
    CMAKE_BACKWARDS_COMPATIBILITY is used.
    (old = use, new = ignore)
  - Show CMAKE_BACKWARDS_COMPATIBILITY in cache only when
    CMP_0001 is set to OLD or WARN
  - Update documentation of cmake_policy and cmake_minimum_required
    to indicate their relationship and the 2.4 version boundary
  - When no cmake policy version is set in top level makefile
    implicitly call cmake_policy(VERSION 2.4) which restores
    CMAKE_BACKWARDS_COMPATIBILITY and other 2.4 compatibility
  - Fix tests MakeClean and Preprocess to call
    cmake_policy(VERSION 2.6) because they depend on new policies
2008-03-07 15:30:35 -05:00
Brad King 49549560b2 ENH: Improve cmake_policy command signature
- Replace NEW and OLD modes with a SET mode for clarity
  - Enforce VERSION argument validity (major.minor[.patch])
2008-03-05 18:21:10 -05:00
Ken Martin ab851bf36b ENH: just getting somethng checked in, still work to do 2008-02-29 15:28:46 -05:00