Commit Graph

21 Commits

Author SHA1 Message Date
Brad King 6720f97d3b Merge topic 'copyright-FindPerlLibs'
bff5772 FindPerlLibs: Add notice of copyright
2011-02-14 16:34:39 -05:00
Andreas Schneider bff5772084 FindPerlLibs: Add notice of copyright
I'm the original author of this module. See bug #7898.
2011-02-10 13:46:35 -05:00
Brad King c4275592a8 Modules: Include builtin FindPackageHandleStandardArgs directly
The FindPackageHandleStandardArgs module was originally created outside
of CMake.  It was added for CMake 2.6.0 by commit e118a627 (add a macro
FIND_PACKAGE_HANDLE_STANDARD_ARGS..., 2007-07-18).  However, it also
proliferated into a number of other projects that at the time required
only CMake 2.4 and thus could not depend on CMake to provide the module.
CMake's own find modules started using the module in commit b5f656e0
(use the new FIND_PACKAGE_HANDLE_STANDARD_ARGS in some of the FindXXX
modules..., 2007-07-18).

Then commit d358cf5c (add 2nd, more powerful mode to
find_package_handle_standard_args, 2010-07-29) added a new feature to
the interface of the module that was fully optional and backward
compatible with all existing users of the module.  Later commit 5f183caa
(FindZLIB: use the FPHSA version mode, 2010-08-04) and others shortly
thereafter started using the new interface in CMake's own find modules.
This change was also backward compatible because it was only an
implementation detail within each module.

Unforutnately these changes introduced a problem for projects that still
have an old copy of FindPackageHandleStandardArgs in CMAKE_MODULE_PATH.
When any such project uses one of CMake's builtin find modules the line

  include(FindPackageHandleStandardArgs)

loads the copy from the project which does not have the new interface!
Then the including find module tries to use the new interface with the
old module and fails.

Whether this breakage can be considered a backward incompatible change
in CMake is debatable.  The situation is analagous to copying a standard
library header from one version of a compiler into a project and then
observing problems when the next version of the compiler reports errors
in its other headers that depend on its new version of the original
header.  Nevertheless it is a change to CMake that causes problems for
projects that worked with previous versions.

This problem was discovered during the 2.8.3 release candidate cycle.
It is an instance of a more general problem with projects that provide
their own versions of CMake modules when other CMake modules depend on
them.  At the time we resolved this instance of the problem with commit
b0118402 (Use absolute path to FindPackageHandleStandardArgs.cmake
everywhere, 2010-09-28) for the 2.8.3 release.

In order to address the more general problem we introduced policy
CMP0017 in commit db44848f (Prefer files from CMAKE_ROOT when including
from CMAKE_ROOT, 2010-11-17).  That change was followed by commit
ce28737c (Remove usage of CMAKE_CURRENT_LIST_DIR now that we have
CMP0017, 2010-12-20) which reverted the original workaround in favor of
using the policy.  However, existing project releases do not set the
policy behavior to NEW and therefore still exhibit the problem.

We introduced in commit a364daf1 (Allow users to specify defaults for
unset policies, 2011-01-03) an option for users to build existing
projects by adding -DCMAKE_POLICY_DEFAULT_CMP0017=NEW to the command
line.  Unfortunately this solution still does not allow such projects to
build out of the box, and there is no good way to suggest the use of the
new option.

The only remaining solution to keep existing projects that exhibit this
problem building is to restore the change originally made in commit
b0118402 (Use absolute path to FindPackageHandleStandardArgs.cmake
everywhere, 2010-09-28).  This also avoids policy CMP0017 warnings for
this particular instance of the problem the policy addresses.
2011-01-20 10:56:49 -05:00
Alex Neundorf ce28737c93 Remove usage of CMAKE_CURRENT_LIST_DIR now that we have CMP0017
This puts the new search behaviour for included files in action, i.e.
now when a file from Modules/ include()s another file, it also gets the
one from Modules/ included, i.e. the one it expects.

Alex
2011-01-04 08:20:08 -05:00
Dave Abrahams 20ceccc4f2 FindPerlLibs: Fix for Mac locally applied patches
Previously FindPerlLibs did not work with the Mac stock Perl because it
includes patches.  From "perl -V":

  Locally applied patches:
    /Library/Perl/Updates/<version> comes before system perl directories
    installprivlib and installarchlib points to the Updates directory

Adjust paths accordingly.
2010-11-08 11:09:41 -05:00
Alex Neundorf b01184022b Use absolute path to FindPackageHandleStandardArgs.cmake everywhere
This is to avoid getting an (older) copy of FPHSA.cmake which is
e.g. installed with KDE 4.5.0 and 4.5.1.

Alex
2010-09-28 22:30:31 +02:00
Brad King 74805b28c1 Merge topic 'ImprovedVersionCheckingInSomeModules'
430336c Merge branch 'findsubversion_fphsa_cleanup'
b6c6156 Use FPHSA() in FindSWIG, including version checking.
656cd2f Improved version checking for FindCUDA using the new mode of FPHSA
126db7b Improved version checking for FindSubversion using the new mode of FPHSA()
77d909b Fix DETAILS string with version number in FHPSA()
19b68b9 Improved version checking for FindJava using the new FPHSA() mode
6bb0b6e Improved version checking for FindRuby using the new mode of FPHSA()
946493f FindSquish doesn't detect the version, remove that from the documentation
cb9d1ea Add version checking support to FindFlex and FindPerlLibs
2010-08-10 14:51:45 -04:00
Todd Gamblin 2cde67a781 Modules: Fix spelling 'To distributed' -> 'To distribute' 2010-08-09 08:48:31 -04:00
Alex Neundorf cb9d1eaca4 Add version checking support to FindFlex and FindPerlLibs
Use the new mode of FPHSA() to add version checking for these two modules.

Alex
2010-08-07 22:01:44 +02:00
Brad King c4bb9c9d42 Convert CMake find-modules to BSD License
This adds copyright/license notification blocks CMake's find-modules.
Many of the modules had no notices at all.  Some had notices referring
to the BSD license already.  This commit normalizes existing notices and
adds missing notices.
2009-09-28 11:45:50 -04:00
Philip Lowman dfb2d35375 ENH: Also add ARCHLIB/CORE to include search paths so perl.h can be found on non-standard install prefixes 2009-07-17 23:51:46 -04:00
Philip Lowman a94af4df64 ENH: Improve detection of perl.h/libperl, issue #7898 2009-07-17 23:31:17 -04:00
Bill Hoffman 12be7c21d0 ENH: find perl with FindPerl not find_program, bug: 6243 2008-10-01 16:10:45 -04:00
Bill Hoffman b24b859a93 BUG: Fix bug 6106 FindPerlLibs.cmake missing escaped $ 2007-12-12 07:26:25 -05:00
Alexander Neundorf 13db5b578b ENH: add second failure message parameter to
FIND_PACKAGE_HANDLE_STANDARD_ARGS(), so cmake modules can specify their own
better failure messages. If the default is ok use "DEFAULT_MSG".
Do this also for FindBoost.cmake (#5349)

Alex
2007-07-23 09:49:52 -04:00
Alexander Neundorf b5f656e0de ENH: use the new FIND_PACKAGE_HANDLE_STANDARD_ARGS in some of the FindXXX
modules, remove some of the extra search paths which are also searched by
default

Alex
2007-07-18 13:56:45 -04:00
Ken Martin 74eaecfc3e ENH: cleanups 2005-12-15 14:17:43 -05:00
Bill Hoffman b7fa820118 ENH: add documentation support for modules 2005-12-14 13:51:08 -05:00
Brad King 290ffc01b6 ENH: Removing extra 64-bit search paths. They are now constructed automatically from the paths listed. 2005-04-07 14:27:01 -04:00
Brad King 76f9050026 ENH: Adding support for 64-bit library paths. Contributed by Peter Vanroose. 2005-04-07 13:46:02 -04:00
Andy Cedilnik 257daa4635 ENH: Initial import of swig. Start working towards Bug #749 - Add swig support module to cmake 2004-04-30 12:11:02 -04:00