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Added relocatable cmake support also for CMake before 3.0 and after 2.8.8

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(grafted from e049a2a72a
)
This commit is contained in:
Silvio Traversaro 2016-12-06 10:37:34 +01:00
parent 0164f4c682
commit 75f0b8aae3
2 changed files with 29 additions and 8 deletions
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29
CMakeLists.txt
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@ -507,7 +507,6 @@ set ( EIGEN_VERSION_MINOR ${EIGEN_MAJOR_VERSION} )
set ( EIGEN_VERSION_PATCH ${EIGEN_MINOR_VERSION} )
set ( EIGEN_DEFINITIONS "")
set ( EIGEN_INCLUDE_DIR "${CMAKE_INSTALL_PREFIX}/${INCLUDE_INSTALL_DIR}" )
set ( EIGEN_INCLUDE_DIRS ${EIGEN_INCLUDE_DIR} )
set ( EIGEN_ROOT_DIR ${CMAKE_INSTALL_PREFIX} )
# Interface libraries require at least CMake 3.0
@ -561,10 +560,30 @@ if (NOT CMAKE_VERSION VERSION_LESS 3.0)
DESTINATION ${CMAKEPACKAGE_INSTALL_DIR})
else (NOT CMAKE_VERSION VERSION_LESS 3.0)
# Fallback to legacy Eigen3Config.cmake without the imported target
configure_file ( ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Eigen3ConfigLegacy.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/Eigen3Config.cmake
@ONLY ESCAPE_QUOTES
)
# If CMakePackageConfigHelpers module is available (CMake >= 2.8.8)
# create a relocatable Config file, otherwise leave the hardcoded paths
include(CMakePackageConfigHelpers OPTIONAL RESULT_VARIABLE CPCH_PATH)
if(CPCH_PATH)
configure_package_config_file (
${CMAKE_CURRENT_SOURCE_DIR}/cmake/Eigen3ConfigLegacy.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/Eigen3Config.cmake
PATH_VARS EIGEN_INCLUDE_DIR EIGEN_ROOT_DIR
INSTALL_DESTINATION ${CMAKEPACKAGE_INSTALL_DIR}
NO_CHECK_REQUIRED_COMPONENTS_MACRO # Eigen does not provide components
)
else()
# The PACKAGE_* variables are defined by the configure_package_config_file
# but without it we define them manually to the hardcoded paths
set(PACKAGE_INIT "")
set(PACKAGE_EIGEN_INCLUDE_DIR ${EIGEN_INCLUDE_DIR})
set(PACKAGE_EIGEN_ROOT_DIR ${EIGEN_ROOT_DIR})
configure_file ( ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Eigen3ConfigLegacy.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/Eigen3Config.cmake
@ONLY ESCAPE_QUOTES
)
endif()
install ( FILES ${CMAKE_CURRENT_SOURCE_DIR}/cmake/UseEigen3.cmake
${CMAKE_CURRENT_BINARY_DIR}/Eigen3Config.cmake

8
cmake/Eigen3ConfigLegacy.cmake.in
View File

@ -14,13 +14,15 @@
# EIGEN3_VERSION_MINOR - The minor version of Eigen
# EIGEN3_VERSION_PATCH - The patch version of Eigen
@PACKAGE_INIT@
set ( EIGEN3_FOUND 1 )
set ( EIGEN3_USE_FILE "${CMAKE_CURRENT_LIST_DIR}/UseEigen3.cmake" )
set ( EIGEN3_DEFINITIONS "@EIGEN_DEFINITIONS@" )
set ( EIGEN3_INCLUDE_DIR "@EIGEN_INCLUDE_DIR@" )
set ( EIGEN3_INCLUDE_DIRS "@EIGEN_INCLUDE_DIRS@" )
set ( EIGEN3_ROOT_DIR "@EIGEN_ROOT_DIR@" )
set ( EIGEN3_INCLUDE_DIR "@PACKAGE_EIGEN_INCLUDE_DIR@" )
set ( EIGEN3_INCLUDE_DIRS "@PACKAGE_EIGEN_INCLUDE_DIR@" )
set ( EIGEN3_ROOT_DIR "@PACKAGE_EIGEN_ROOT_DIR@" )
set ( EIGEN3_VERSION_STRING "@EIGEN_VERSION_STRING@" )
set ( EIGEN3_VERSION_MAJOR "@EIGEN_VERSION_MAJOR@" )