CMake/Modules/FindBullet.cmake

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Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
2016-09-27 22:01:08 +03:00
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindBullet
# ----------
#
# Try to find the Bullet physics engine
#
#
#
# ::
#
# This module defines the following variables
#
#
#
# ::
#
# BULLET_FOUND - Was bullet found
# BULLET_INCLUDE_DIRS - the Bullet include directories
# BULLET_LIBRARIES - Link to this, by default it includes
# all bullet components (Dynamics,
# Collision, LinearMath, & SoftBody)
#
#
#
# ::
#
# This module accepts the following variables
#
#
#
# ::
#
# BULLET_ROOT - Can be set to bullet install path or Windows build path
macro(_FIND_BULLET_LIBRARY _var)
find_library(${_var}
NAMES
${ARGN}
HINTS
${BULLET_ROOT}
${BULLET_ROOT}/lib/Release
${BULLET_ROOT}/lib/Debug
${BULLET_ROOT}/out/release8/libs
${BULLET_ROOT}/out/debug8/libs
PATH_SUFFIXES lib
)
mark_as_advanced(${_var})
endmacro()
macro(_BULLET_APPEND_LIBRARIES _list _release)
set(_debug ${_release}_DEBUG)
if(${_debug})
set(${_list} ${${_list}} optimized ${${_release}} debug ${${_debug}})
else()
set(${_list} ${${_list}} ${${_release}})
endif()
endmacro()
find_path(BULLET_INCLUDE_DIR NAMES btBulletCollisionCommon.h
HINTS
${BULLET_ROOT}/include
${BULLET_ROOT}/src
PATH_SUFFIXES bullet
)
# Find the libraries
_FIND_BULLET_LIBRARY(BULLET_DYNAMICS_LIBRARY BulletDynamics)
_FIND_BULLET_LIBRARY(BULLET_DYNAMICS_LIBRARY_DEBUG BulletDynamics_Debug BulletDynamics_d)
_FIND_BULLET_LIBRARY(BULLET_COLLISION_LIBRARY BulletCollision)
_FIND_BULLET_LIBRARY(BULLET_COLLISION_LIBRARY_DEBUG BulletCollision_Debug BulletCollision_d)
_FIND_BULLET_LIBRARY(BULLET_MATH_LIBRARY BulletMath LinearMath)
_FIND_BULLET_LIBRARY(BULLET_MATH_LIBRARY_DEBUG BulletMath_Debug BulletMath_d LinearMath_Debug LinearMath_d)
_FIND_BULLET_LIBRARY(BULLET_SOFTBODY_LIBRARY BulletSoftBody)
_FIND_BULLET_LIBRARY(BULLET_SOFTBODY_LIBRARY_DEBUG BulletSoftBody_Debug BulletSoftBody_d)
# handle the QUIETLY and REQUIRED arguments and set BULLET_FOUND to TRUE if
# all listed variables are TRUE
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 18:56:49 +03:00
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Bullet DEFAULT_MSG
BULLET_DYNAMICS_LIBRARY BULLET_COLLISION_LIBRARY BULLET_MATH_LIBRARY
BULLET_SOFTBODY_LIBRARY BULLET_INCLUDE_DIR)
set(BULLET_INCLUDE_DIRS ${BULLET_INCLUDE_DIR})
if(BULLET_FOUND)
_BULLET_APPEND_LIBRARIES(BULLET_LIBRARIES BULLET_DYNAMICS_LIBRARY)
_BULLET_APPEND_LIBRARIES(BULLET_LIBRARIES BULLET_COLLISION_LIBRARY)
_BULLET_APPEND_LIBRARIES(BULLET_LIBRARIES BULLET_MATH_LIBRARY)
_BULLET_APPEND_LIBRARIES(BULLET_LIBRARIES BULLET_SOFTBODY_LIBRARY)
endif()