Revision a48866074809f4203f318f132c1b97a2feb3c9e9 authored by Eric Berberich on 29 June 2012, 23:13:43 UTC, committed by Eric Berberich on 29 June 2012, 23:13:43 UTC
Macro is nicer to use, but needs to be included and is less efficient. To improve understanding: added comments
1 parent 1d21969
CMakeLists.txt
# Top level CMakeLists.txt for CGAL
# The name of our project is "CGAL". CMakeLists files in this project can
# refer to the root source directory of the project as ${CMAKE_SOURCE_DIR} or
# ${CMAKE_SOURCE_DIR} and to the root binary directory of the project as
# ${CMAKE_BINARY_DIR} or ${CMAKE_BINARY_DIR}.
project(CGAL CXX C)
# Minimal version of CMake:
if(WIN32)
cmake_minimum_required(VERSION 2.8.6)
else()
cmake_minimum_required(VERSION 2.6.2)
endif()
# Tested version:
if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" VERSION_GREATER 2.6)
if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}" VERSION_GREATER 2.8.3)
cmake_policy(VERSION 2.8.4)
else()
cmake_policy(VERSION 2.6)
endif()
endif()
#--------------------------------------------------------------------------------------------------
#
# -= PACKAGE SETUP =-
#
#--------------------------------------------------------------------------------------------------
message( "== Setting paths ==" )
if ( CGAL_BRANCH_BUILD )
message( STATUS "Build CGAL from ${CGAL_SCM_NAME}-branch: ${CGAL_SCM_BRANCH_NAME}" )
# list packages
file(GLOB CGAL_CONFIGURED_PACKAGES RELATIVE ${CMAKE_SOURCE_DIR} "${CMAKE_SOURCE_DIR}/*")
list(REMOVE_ITEM CGAL_CONFIGURED_PACKAGES copyright CMakeLists.txt .svn .git)
# detect and remove not existing package-directories
foreach (package ${CGAL_CONFIGURED_PACKAGES})
if (NOT IS_DIRECTORY "${CMAKE_SOURCE_DIR}/${package}")
list(APPEND CGAL_WRONG_PACKAGES ${package})
elseif(NOT IS_DIRECTORY "${CMAKE_SOURCE_DIR}/${package}/package_info")
list(APPEND CGAL_WRONG_PACKAGES ${package})
endif()
endforeach()
find_program(CGAL_CREATE_CMAKE_SCRIPT cgal_create_cmake_script
HINT ${CMAKE_SOURCE_DIR}/Scripts/scripts
DOC "Script cgal_create_cmake_script, that creates CMakeLists.txt files"
NO_DEFAULT_PATH
NO_CMAKE_ENVIRONMENT_PATH)
if (DEFINED CGAL_WRONG_PACKAGES)
message(STATUS "Removed not-a-package: ${CGAL_WRONG_PACKAGES}")
list(REMOVE_ITEM CGAL_CONFIGURED_PACKAGES ${CGAL_WRONG_PACKAGES})
endif()
set(CGAL_CONFIGURED_PACKAGES_NAMES ${CGAL_CONFIGURED_PACKAGES})
set(CGAL_CONFIGURED_PACKAGES)
foreach (package ${CGAL_CONFIGURED_PACKAGES_NAMES})
list(APPEND CGAL_CONFIGURED_PACKAGES "${CMAKE_SOURCE_DIR}/${package}")
endforeach()
set(CGAL_INSTALLATION_PACKAGE_DIR "${CMAKE_SOURCE_DIR}/Installation" CACHE PATH "Directory containing the Installation package")
set(CGAL_MAINTENANCE_PACKAGE_DIR "${CMAKE_SOURCE_DIR}/Maintenance" CACHE PATH "Directory containing the Maintenance package")
set(CGAL_CORE_PACKAGE_DIR "${CMAKE_SOURCE_DIR}/Core" CACHE PATH "Directory containing the Core package")
mark_as_advanced(CGAL_INSTALLATION_PACKAGE_DIR)
mark_as_advanced(CGAL_MAINTENANCE_PACKAGE_DIR)
mark_as_advanced(CGAL_CORE_PACKAGE_DIR)
message(STATUS "Installation package directory: ${CGAL_INSTALLATION_PACKAGE_DIR}")
message(STATUS "Maintenance package directory: ${CGAL_MAINTENANCE_PACKAGE_DIR}")
message(STATUS "Core package directory: ${CGAL_CORE_PACKAGE_DIR}")
else ( CGAL_BRANCH_BUILD )
# get release name
file(TO_CMAKE_PATH ${CMAKE_SOURCE_DIR} CMAKE_SOURCE_CDIR)
string(REGEX REPLACE "^/" "" CMAKE_SOURCE_DDIR ${CMAKE_SOURCE_CDIR})
string(REPLACE "/" ";" CMAKE_SOURCE_PDIR ${CMAKE_SOURCE_DDIR})
list(GET CMAKE_SOURCE_PDIR -1 CGAL_RELEASE_NAME)
message( STATUS "Build CGAL from release in directory ${CGAL_RELEASE_NAME}" )
set(CGAL_CONFIGURED_PACKAGES_NAMES ${CGAL_RELEASE_NAME})
# list packages
set(CGAL_CONFIGURED_PACKAGES "${CMAKE_SOURCE_DIR}")
set(CGAL_INSTALLATION_PACKAGE_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Directory containing the Installation package")
set(CGAL_MAINTENANCE_PACKAGE_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Directory containing the Maintenance package")
set(CGAL_CORE_PACKAGE_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Directory containing the Core package")
endif (CGAL_BRANCH_BUILD )
#message(STATUS "Packages found: ${CGAL_CONFIGURED_PACKAGES}")
list(SORT CGAL_CONFIGURED_PACKAGES_NAMES)
message(STATUS "Packagenames: ${CGAL_CONFIGURED_PACKAGES_NAMES}")
message( "== Setting paths (DONE) ==\n" )
message( "== Generate version files ==")
if ( CGAL_BRANCH_BUILD )
#
# Create version files
#
file(STRINGS "${CGAL_MAINTENANCE_PACKAGE_DIR}/release_building/MAJOR_NUMBER" CGAL_MAJOR_VERSION REGEX "[0-9]*")
file(STRINGS "${CGAL_MAINTENANCE_PACKAGE_DIR}/release_building/MINOR_NUMBER" CGAL_MINOR_VERSION REGEX "[0-9]*")
file(STRINGS "${CGAL_MAINTENANCE_PACKAGE_DIR}/release_building/BUGFIX_NUMBER" CGAL_BUGFIX_VERSION REGEX "[0-9]*")
set(CGAL_BUILD_VERSION 900)
file(REMOVE ${CMAKE_BINARY_DIR}/VERSION)
if (CGAL_BUGFIX_VERSION AND CGAL_BUGFIX_VERSION GREATER 0)
set(CGAL_CREATED_VERSION_NUM "${CGAL_MAJOR_VERSION}.${CGAL_MINOR_VERSION}.${CGAL_BUGFIX_VERSION}")
else()
set(CGAL_CREATED_VERSION_NUM "${CGAL_MAJOR_VERSION}.${CGAL_MINOR_VERSION}")
endif()
# TODO EBEB set number of internal release (replace "900")
set(CGAL_CREATED_VERSION "${CGAL_CREATED_VERSION_NUM}-I-${CGAL_BUILD_VERSION}")
set(CGAL_VERSION "${CGAL_CREATED_VERSION_NUM}-I-${CGAL_BUILD_VERSION}")
file(WRITE "${CMAKE_BINARY_DIR}/VERSION" "${CGAL_CREATED_VERSION_NUM}")
message(STATUS "CGAL_VERSION is ${CGAL_CREATED_VERSION}")
set(CGAL_FULL_VERSION ${CGAL_CREATED_VERSION})
#define CGAL_VERSION_NR 1030500135
string (LENGTH "${CGAL_MAJOR_VERSION}" CGAL_MAJOR_LEN)
if ("${CGAL_MAJOR_LEN}" EQUAL 1)
set(CGAL_TMP_MAJOR "0${CGAL_MAJOR_VERSION}")
endif()
string (LENGTH "${CGAL_MINOR_VERSION}" CGAL_MINOR_LEN)
if ("${CGAL_MINOR_LEN}" EQUAL 1)
set(CGAL_TMP_MINOR "0${CGAL_MINOR_VERSION}")
else()
set(CGAL_TMP_MINOR "${CGAL_MINOR_VERSION}")
endif()
set(CGAL_TMP_BUILD "${CGAL_BUILD_VERSION}")
string(LENGTH "${CGAL_TMP_BUILD}" CGAL_BUILD_LEN)
while(CGAL_BUILD_LEN LESS 4)
set(CGAL_TMP_BUILD "0${CGAL_TMP_BUILD}")
string(LENGTH "${CGAL_TMP_BUILD}" CGAL_BUILD_LEN)
endwhile()
set(CGAL_CREATED_VERSION_NR "1${CGAL_TMP_MAJOR}${CGAL_TMP_MINOR}${CGAL_BUGFIX_VERSION}${CGAL_TMP_BUILD}")
message(STATUS "CGAL_VERSION_NR is ${CGAL_CREATED_VERSION_NR}")
if ( ${CGAL_SCM_NAME} STREQUAL "svn" )
# The function Subversion_GET_REVISION is defined in ../CMakeLists.txt
Subversion_GET_REVISION("${CMAKE_SOURCE_DIR}" CGAL_TMP_REVISION)
set(CGAL_CREATED_SVN_REVISION "${CGAL_TMP_REVISION}")
message(STATUS "CGAL_SVN_REVISION is ${CGAL_TMP_REVISION}")
endif()
if ( ${CGAL_SCM_NAME} STREQUAL "git" )
### TODO EBEB GIT_NR?
set(CGAL_GIT_HASH "n/a")
message(STATUS "CGAL_GIT_HASH is ${CGAL_GIT_HASH}")
endif()
file(REMOVE ${CMAKE_BINARY_DIR}/include/CGAL/version.h)
configure_file(${CGAL_INSTALLATION_PACKAGE_DIR}/config/version.h.in ${CMAKE_BINARY_DIR}/include/CGAL/version.h @ONLY)
#
# Duplicate files
#
if (CGAL_REPORT_DUPLICATE_FILES)
message("== Searching for duplicate files ==")
foreach (package ${CGAL_CONFIGURED_PACKAGES})
file(GLOB_RECURSE CGAL_PACKAGE_HEADER_FILES FOLLOW_SYMLINKS ${package}/*.h)
foreach (file ${CGAL_PACKAGE_HEADER_FILES})
string(REPLACE "${package}/" "" pure_file ${file})
if (NOT ${pure_file} MATCHES ".*CMakeFiles.*")
list(APPEND CGAL_HEADER_FILES ${pure_file})
endif()
endforeach()
file(GLOB_RECURSE CGAL_PACKAGE_CPP_FILES FOLLOW_SYMLINKS ${package}/*.cpp)
foreach (file ${CGAL_PACKAGE_CPP_FILES})
string(REPLACE "${package}/" "" pure_file ${file})
if (NOT ${pure_file} MATCHES ".*CMakeFiles.*")
list(APPEND CGAL_CPP_FILES ${pure_file})
endif()
endforeach()
endforeach()
list(SORT CGAL_HEADER_FILES)
set(CGAL_UNIQUE_HEADER_FILES ${CGAL_HEADER_FILES})
set(CGAL_DUPLICATE_HEADER_FILES ${CGAL_HEADER_FILES})
list(REMOVE_DUPLICATES CGAL_UNIQUE_HEADER_FILES)
#message(STATUS "Headers: ${CGAL_HEADER_FILES}")
foreach (file ${CGAL_UNIQUE_HEADER_FILES})
list(FIND CGAL_DUPLICATE_HEADER_FILES "${file}" CGAL_FILE_IDX)
list(REMOVE_AT CGAL_DUPLICATE_HEADER_FILES ${CGAL_FILE_IDX})
endforeach()
message(STATUS "Duplicate header files (will be repeated at end): ${CGAL_DUPLICATE_HEADER_FILES}")
list(SORT CGAL_CPP_FILES)
set(CGAL_UNIQUE_CPP_FILES ${CGAL_CPP_FILES})
set(CGAL_DUPLICATE_CPP_FILES ${CGAL_CPP_FILES})
list(REMOVE_DUPLICATES CGAL_UNIQUE_CPP_FILES)
#message(STATUS "CPPs: ${CGAL_CPP_FILES}")
foreach (file ${CGAL_UNIQUE_CPP_FILES})
list(FIND CGAL_DUPLICATE_CPP_FILES "${file}" CGAL_FILE_IDX)
list(REMOVE_AT CGAL_DUPLICATE_CPP_FILES ${CGAL_FILE_IDX})
endforeach()
message(STATUS "Duplicate cpp files (will be repeated at end): ${CGAL_DUPLICATE_CPP_FILES}")
endif(CGAL_REPORT_DUPLICATE_FILES)
else()
if (NOT EXISTS "${CMAKE_SOURCE_DIR}/VERSION" OR NOT EXISTS "${CMAKE_SOURCE_DIR}/include/CGAL/version.h")
message(FATAL_ERROR "File VERSION or include/CGAL/version.h are missing, required by release-build.")
endif()
#
# Read and parse CGAL version number from VERSION file
#
file( READ "${CMAKE_SOURCE_DIR}/VERSION" CGAL_VERSION )
# Comment from Laurent Rineau, 2012/06/28:
# file(READ ..) should be replace by file(STRINGS ..), and then we take
# the first line. That would avoid parsing errors when the VERSION file
# contains a CR character!
set(CGAL_FULL_VERSION ${CGAL_VERSION})
string( REPLACE "-" "." CGAL_VERSION_TOKENS1 ${CGAL_VERSION} )
string( REPLACE "." ";" CGAL_VERSION_TOKENS ${CGAL_VERSION_TOKENS1} )
list( LENGTH CGAL_VERSION_TOKENS CGAL_VERSION_TOKENS_LEN )
list( GET CGAL_VERSION_TOKENS 0 CGAL_MAJOR_VERSION )
set(CGAL_MINOR_VERSION)
set(CGAL_BUGFIX_VERSION)
set(CGAL_BUILD_VERSION 1000)
if ( CGAL_VERSION_TOKENS_LEN GREATER 1 )
list( GET CGAL_VERSION_TOKENS 1 CGAL_MINOR_VERSION )
endif()
if ( CGAL_VERSION_TOKENS_LEN GREATER 2 )
list( GET CGAL_VERSION_TOKENS 2 CGAL_BUGFIX_VERSION )
# The following condition will be true the token #2 is not a number (if
# it is for example "I" or "Ic"):
if(NOT CGAL_BUGFIX_VERSION GREATER 0 AND NOT CGAL_BUGFIX_VERSION EQUAL 0)
set(CGAL_BUGFIX_VERSION 0)
list( GET CGAL_VERSION_TOKENS 3 CGAL_BUILD_VERSION )
else()
list( GET CGAL_VERSION_TOKENS 4 CGAL_BUILD_VERSION )
endif()
# If CGAL_BUILD_VERSION is not a strictly positive number, error
if(NOT CGAL_BUILD_VERSION GREATER 0)
message(WARNING
"Error parsing VERSION file: CGAL_BUILD_VERSION is not a number.\n"
"The content of the VERSION file is:\n${CGAL_VERSION}\n"
"CGAL_BUILD_VERSION was set to:\n${CGAL_BUILD_VERSION}")
set(CGAL_BUILD_VERSION 1000)
endif()
endif()
if(NOT CGAL_BUGFIX_VERSION)
set(CGAL_BUGFIX_VERSION 0)
endif()
endif()
#--------------------------------------------------------------------------------------------------
#
# -= BASIC SETUP =-
#
#--------------------------------------------------------------------------------------------------
message( STATUS "CGAL_MAJOR_VERSION=${CGAL_MAJOR_VERSION}" )
message( STATUS "CGAL_MINOR_VERSION=${CGAL_MINOR_VERSION}" )
message( STATUS "CGAL_BUGFIX_VERSION=${CGAL_BUGFIX_VERSION}" )
if(CGAL_BUILD_VERSION LESS 1000)
message( STATUS "CGAL_BUILD_VERSION=${CGAL_BUILD_VERSION}" )
endif()
# SONAME, SOVERSION
#
# The rule is that each new release or bug fix release should increse the soversion.
#
# SOVERSION is $(SONAME_VERSION).$(SOVERSION_MINOR).$(SOVERSION_RELEASE)
#
# - If the binary interface of libraries do not change from previous release
# (example: most bug fix releases), increase SOVERSION_RELEASE (this third number).
# - If the binary interface is changed, but remains compatible with
# previous release (example: only addition of new functions), then increase
# SOVERSION_MINOR (second number) and set SOVERSION_RELEASE to 0.
# - If the binary interface is changed in an incompatible way to previous
# release, then increase the SONAME_VERSION, and set the two other
# numbers to 0.
#
# SOVERSION history:
# CGAL<=3.5 : (unversionned)
# CGAL-3.5 : 4.0.0
# CGAL-3.5.1 : 4.0.1
# CGAL-3.6 : 5.0.0
# CGAL-3.6.1 : 5.0.0 (should have been 5.0.1)
# CGAL-3.7 : 6.0.0 (certainly: some types have been turned from int to
# std::size_t, which is different on some platforms)
# CGAL-3.8 : 7.0.0 (At least CGAL::Random has changed its member fields.)
# CGAL-3.9 : 8.0.0 (No way to check the binary compatibility.)
# CGAL-4.0 : 9.0.0 (No way to check the binary compatibility.)
# CGAL-4.1: : 10.0.0 (No way to check the binary compatibility.)
set( CGAL_SONAME_VERSION "10" )
set( CGAL_SOVERSION "10.0.0" )
message( STATUS "CGAL_SONAME_VERSION=${CGAL_SONAME_VERSION}" )
message( STATUS "CGAL_SOVERSION =${CGAL_SOVERSION}" )
set( CGAL_BUILDING_LIBS TRUE )
set( CGAL_VERSION_DIR CGAL-${CGAL_VERSION} )
set( CGAL_MODULES_REL_DIR cmake/modules )
set( CGAL_MODULES_DIR ${CGAL_INSTALLATION_PACKAGE_DIR}/${CGAL_MODULES_REL_DIR} )
include(${CGAL_MODULES_DIR}/CGAL_Macros.cmake)
cgal_setup_module_path()
message( STATUS "CGAL_REFERENCE_CACHE_DIR=${CGAL_REFERENCE_CACHE_DIR}" )
if ( RUNNING_CGAL_AUTO_TEST )
message(STATUS "Operating system:")
execute_process(COMMAND uname -a
TIMEOUT 5
OUTPUT_VARIABLE uname_a
ERROR_VARIABLE uname_a)
message(STATUS "${uname_a}")
CGAL_display_compiler_version()
if ( NOT "${CGAL_REFERENCE_CACHE_DIR}" STREQUAL "" )
if ( EXISTS ${CGAL_REFERENCE_CACHE_DIR} )
if ( EXISTS ${CGAL_REFERENCE_CACHE_DIR}/CMakeCache.txt )
message( STATUS "Loading reference cache from ${CGAL_REFERENCE_CACHE_DIR}" )
load_cache( ${CGAL_REFERENCE_CACHE_DIR}
EXCLUDE CGAL_Core_LIBRARY
CGAL_CORE_PACKAGE_DIR
WITH_CGAL_Core
CGAL_INSTALLATION_PACKAGE_DIR
CGAL_MAINTENANCE_PACKAGE_DIR
CGAL_PDB_BINARY_DIR
CGAL_PDB_SOURCE_DIR
CGAL_Qt3_SOURCE_DIR
CGAL_BINARY_DIR
CGAL_SOURCE_DIR)
# message("List of cache variables:")
## The following lines removes nasty loaded cache values. We do not
## want that the current build tree depends on binaries that were
## build in the reference build tree.
get_property(cache_variables DIRECTORY PROPERTY CACHE_VARIABLES)
foreach(var ${cache_variables})
# get_property(var_value CACHE ${var} PROPERTY VALUE)
# get_property(type CACHE ${var} PROPERTY TYPE)
string(REGEX MATCH "^CGAL(_.*_(DEPENDS|BINARY_DIR)|_.*LIBRARY)$" var_name_matches ${var})
if(var_name_matches)
unset(${var} CACHE)
# else()
# message("${var}:${var_type}=${var_value}")
endif()
endforeach()
endif()
endif()
endif()
endif()
include(CGAL_Common)
include(CGAL_GeneratorSpecificSettings)
include(CGAL_CheckCXXFileRuns)
mark_as_advanced(CMAKE_BACKWARDS_COMPATIBILITY)
message( STATUS "USING CMake version: ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}" )
message( STATUS "System: ${CMAKE_SYSTEM_NAME}" )
#--------------------------------------------------------------------------------------------------
#
# -= FLAGS =-
#
#--------------------------------------------------------------------------------------------------
if( MSVC )
uniquely_add_flags ( CGAL_CXX_FLAGS "-D_CRT_SECURE_NO_DEPRECATE;-D_SCL_SECURE_NO_DEPRECATE;-D_CRT_SECURE_NO_WARNINGS;-D_SCL_SECURE_NO_WARNINGS" )
uniquely_add_flags ( CGAL_CXX_FLAGS "/fp:strict" )
uniquely_add_flags ( CGAL_CXX_FLAGS "/fp:except-" )
if ( RUNNING_CGAL_AUTO_TEST )
set(CMAKE_CXX_WARNING_LEVEL 2 CACHE STRING "MSVC C++ compiler warning level" FORCE)
mark_as_advanced(CMAKE_CXX_WARNING_LEVEL)
endif()
endif()
if( "${CMAKE_CXX_COMPILER_ID}" MATCHES SunPro )
message( STATUS "Using SunPro compiler, using STLPort 4." )
uniquely_add_flags( CGAL_CXX_FLAGS "-features=extensions;-library=stlport4;-D_GNU_SOURCE" )
uniquely_add_flags( CGAL_SHARED_LINKER_FLAGS "-library=stlport4" )
uniquely_add_flags( CGAL_EXE_LINKER_FLAGS "-library=stlport4" )
endif()
if( "${CMAKE_CXX_COMPILER}" MATCHES "icl" OR "${CMAKE_CXX_COMPILER}" MATCHES "icpc")
message( STATUS "Intel compiler is detected." )
set( IntelCompiler_FOUND TRUE )
get_dependency_version(IntelCompiler)
if( "${IntelCompiler_VERSION}" LESS "1100" )
message("Intel Compiler version ${IntelCompiler_VERSION} is not supported by CGAL-${CGAL_MAJOR_VERSION}.${CGAL_MINOR_VERSION}! (too old, must be 11.0 or after)")
else()
message( STATUS "Using Intel Compiler version 11 or later. Adding -fp-model strict" )
if(WIN32)
uniquely_add_flags( CGAL_CXX_FLAGS "/fp:strict" )
else()
uniquely_add_flags( CGAL_CXX_FLAGS "-fp-model strict" )
endif()
endif()
endif()
if ( CMAKE_COMPILER_IS_GNUCXX )
set( GCC_FOUND TRUE )
get_dependency_version(GCC)
if ( "${GCC_VERSION}" MATCHES "Not" OR "${GCC_VERSION}" MATCHES "Unknown" )
set( GCC_FOUND FALSE )
endif()
if ( GCC_FOUND )
if ( RUNNING_CGAL_AUTO_TEST )
uniquely_add_flags( CGAL_CXX_FLAGS "-Wall" )
endif()
if ( "${GCC_VERSION}" MATCHES "^4." )
message( STATUS "Using gcc version 4 or later. Adding -frounding-math" )
uniquely_add_flags( CGAL_CXX_FLAGS "-frounding-math" )
endif()
if ( "${GCC_VERSION}" MATCHES "^4.2" )
message( STATUS "Using gcc version 4.2. Adding -fno-strict-aliasing" )
uniquely_add_flags( CGAL_CXX_FLAGS "-fno-strict-aliasing" )
endif()
if ( "${CMAKE_SYSTEM_PROCESSOR}" MATCHES "alpha" )
message( STATUS "Using gcc on alpha. Adding -mieee -mfp-rounding-mode=d" )
uniquely_add_flags( CGAL_CXX_FLAGS "-mieee -mfp-rounding-mode=d" )
endif()
endif()
endif()
message( "== Generate version files (DONE) ==\n")
#--------------------------------------------------------------------------------------------------
#
# -= External libraries =-
#
#--------------------------------------------------------------------------------------------------
message("== Detect external libraries ==")
include(CGAL_SetupFlags)
macro( add_config_flag flag )
if ( ${flag} )
file( APPEND ${CMAKE_BINARY_DIR}/include/CGAL/compiler_config.h "#define ${flag} 1\n\n")
else()
file( APPEND ${CMAKE_BINARY_DIR}/include/CGAL/compiler_config.h "//#define ${flag} 1\n\n")
endif()
endmacro()
# this is the place to tell which external libs are supporting
# Remarks:
# External libs Qt3 and Qt34are configured when Qt3 or Qt4 as lib of cgal are required
# Coin is used in KDS, but no FindCoin or FindCOIN exists
# There exists FindF2C, FindIPE, FindMKL, but they are only used to support supporting libs
list (INSERT CGAL_SUPPORTING_3RD_PARTY_LIBRARIES 0 GMP MPFR ZLIB OpenGL LEDA MPFI RS RS3 OpenNL TAUCS Eigen3 BLAS LAPACK QGLViewer ESBTL Coin3D NTL IPE)
if (NOT WIN32)
# GMPXX is not supported on WIN32 machines
list (INSERT CGAL_SUPPORTING_3RD_PARTY_LIBRARIES 1 GMPXX)
endif()
# Where CMake is run several times, to avoid duplicates
list(REMOVE_DUPLICATES CGAL_SUPPORTING_3RD_PARTY_LIBRARIES)
hide_variable(CGAL_SUPPORTING_3RD_PARTY_LIBRARIES)
# set some to have special prefix
macro( set_special_prefix library prefix)
set(SPECIAL_PREFIXES "${SPECIAL_PREFIXES}set(CGAL_EXT_LIB_${library}_PREFIX \"${prefix}\")\n")
set(CGAL_EXT_LIB_${library}_PREFIX ${prefix})
endmacro()
set_special_prefix(Qt4 QT)
set_special_prefix(Eigen3 EIGEN3)
set_special_prefix(QGLViewer QGLVIEWER)
set_special_prefix(Coin3D COIN3D)
# some libraries are essential (stl and Boost.Thread are treated in another way)
list (INSERT CGAL_ESSENTIAL_3RD_PARTY_LIBRARIES 0 GMP MPFR)
hide_variable(CGAL_ESSENTIAL_3RD_PARTY_LIBRARIES)
foreach (lib ${CGAL_SUPPORTING_3RD_PARTY_LIBRARIES})
# set standard prefix
if(NOT DEFINED CGAL_EXT_LIB_${lib}_PREFIX)
set(CGAL_EXT_LIB_${lib}_PREFIX ${lib})
endif()
hide_variable(CGAL_EXT_LIB_${lib}_PREFIX)
# add option
list( FIND CGAL_ESSENTIAL_3RD_PARTY_LIBRARIES "${lib}" POSITION )
if ( "${POSITION}" STRGREATER "-1" ) # if lib is essential
option(WITH_${lib} "Select external library ${lib}" ON)
else()
option(WITH_${lib} "Select external library ${lib}" OFF)
endif()
if (WITH_${lib})
add_config_flag( ${CGAL_EXT_LIB_${lib}_PREFIX} )
endif()
endforeach()
#--------------------------------------------------------------------------------------------------
#
# -= DEPENDENCIES =-
#
#--------------------------------------------------------------------------------------------------
#
# The following variables are in the cache just so subdirectories can set them persistently.
# But they are not intended to persist from run to run as normal cache variables.
# Similar variables are created when a library is detected.
#
cache_set(CGAL_3RD_PARTY_PRECONFIGURED "" )
cache_set(CGAL_3RD_PARTY_DEFINITIONS "" )
cache_set(CGAL_3RD_PARTY_INCLUDE_DIRS "" )
cache_set(CGAL_3RD_PARTY_LIBRARIES "" )
cache_set(CGAL_3RD_PARTY_LIBRARIES_DIRS "" )
# default is on, but some use-cases need to set it to off, e.g., debian packages
option( CGAL_ENABLE_PRECONFIG "Select to allow to preconfiguration of external libraries" ON)
# additional info: some header files in CGAL add additional code if
# certain optional libs are installed, and some examples/tests rely on
# this; e.g. in MPFI/RS in Algebraic_kernel_d. For these cases CGAL
# and the example/test must be configured with MPFI (just one is not sufficient)
option( CGAL_ALLOW_ALL_PRECONFIGURED_LIBS_COMPONENT "Select to allow to use all preconfigured external libraries" OFF)
include(CGAL_SetupDependencies)
message("== Detect external libraries (DONE) ==\n")
#--------------------------------------------------------------------------------------------------
#
# -= Generation of compiler_config.h =-
#
#--------------------------------------------------------------------------------------------------
# The variables set are the #defines expected by compiler_config.h
# Note: CMake will not notice when files are added or removed
# but this is probably OK for the installation procedure.
message("== Write compiler_config.h ==")
file(GLOB all_config_tests "${CGAL_INSTALLATION_PACKAGE_DIR}/config/testfiles/*.cpp")
list( SORT all_config_tests )
file( WRITE ${CMAKE_BINARY_DIR}/include/CGAL/compiler_config.h "//\n// compiler_config.h is included by CGAL headers to load the needed compiler settings.\n//\n// DO NOT EDIT compiler_config.h. It is generated by CMake.\n//\n\n")
cache_get(CONFIG_CXX_FLAGS)
foreach(config_test_cpp ${all_config_tests})
# Test's name is .cpp's base name
get_filename_component(config_test_name ${config_test_cpp} NAME_WE)
# Compile and run ${config_test_cpp}. Exit code is stored in ${config_test_name}.
if( RUNNING_CGAL_AUTO_TEST OR "${config_test_name}" MATCHES "^${config_test_name}$" OR NOT ${CONFIG_CXX_FLAGS} STREQUAL ${CMAKE_CXX_FLAGS})
CHECK_CXX_FILE_RUNS(${config_test_cpp} ${config_test_name} ${config_test_name})
if ( ${config_test_name} )
cache_set ( ${config_test_name} 0 )
else()
cache_set ( ${config_test_name} 1 )
endif()
endif()
add_config_flag( ${config_test_name} ${config_test_name} )
endforeach()
cache_set(CONFIG_CXX_FLAGS ${CMAKE_CXX_FLAGS})
add_config_flag( CGAL_USE_GMP )
add_config_flag( CGAL_USE_MPFR )
add_config_flag( CGAL_USE_GMPXX )
add_config_flag( CGAL_USE_LEDA )
add_config_flag( CGAL_USE_MPFI )
add_config_flag( CGAL_USE_RS )
add_config_flag( CGAL_USE_NTL )
add_config_flag( CGAL_BUILD_SHARED_LIBS )
if (NOT WITH_CGAL_Core)
set(CGAL_USE_CORE FALSE)
else()
set(CGAL_USE_CORE ${CGAL_USE_GMP})
endif()
add_config_flag( CGAL_USE_CORE )
# ^^ there is CGAL_USE_CORE and not CGAL_HAS_CORE, as CORE is considered
# as external lib and not as CGAL component (EBEB: 24 Jan 2012)
if ( RUNNING_CGAL_AUTO_TEST AND MSVC )
file( APPEND "${CMAKE_BINARY_DIR}/include/CGAL/compiler_config.h" "#include <CGAL/Testsuite/vc_debug_hook.h>\n\n" )
endif()
#--------------------------------------------------------------------------------------------------
#
# -= Installation Setup =-
#
#--------------------------------------------------------------------------------------------------
set ( CGAL_INSTALL_INC_DIR "include" CACHE STRING "The folder where CGAL header files will be installed, relative to CMAKE_INSTALL_PREFIX" )
set ( CGAL_INSTALL_LIB_DIR "lib" CACHE STRING "The folder where CGAL libraries will be installed, relative to CMAKE_INSTALL_PREFIX" )
if ( CGAL_WIN32_CMAKE_ON_CYGWIN )
exec_program(cygpath ARGS -w "${CMAKE_INSTALL_PREFIX}" OUTPUT_VARIABLE CMAKE_INSTALL_PREFIX2 )
file ( TO_CMAKE_PATH ${CMAKE_INSTALL_PREFIX2} CMAKE_INSTALL_PREFIX )
endif()
set ( CGAL_INSTALL_BIN_DIR "bin"
CACHE STRING "The folder where CGAL user-side scripts will be installed, relative to CMAKE_INSTALL_PREFIX"
)
set ( CGAL_INSTALL_CMAKE_DIR "${CGAL_INSTALL_LIB_DIR}/CGAL"
CACHE STRING "The folder where CGAL CMake modules will be installed, relative to CMAKE_INSTALL_PREFIX"
)
set ( CGAL_INSTALL_DOC_DIR "share/doc/${CGAL_VERSION_DIR}"
CACHE STRING "The folder where CGAL documentation and license files will be installed, relative to CMAKE_INSTALL_PREFIX"
)
set ( CGAL_INSTALL_MAN_DIR "share/man/man1"
CACHE STRING "The folder where manual pages for CGAL scripts will be installed, relative to CMAKE_INSTALL_PREFIX"
)
message("== Write compiler_config.h (DONE) ==\n")
#--------------------------------------------------------------------------------------------------
#
# -= Build =-
#
#--------------------------------------------------------------------------------------------------
message("== Generating build files ==")
set(CGAL_LIBRARIES_DIR ${CMAKE_BINARY_DIR}/lib)
set(CGAL_INCLUDE_DIRS ${CMAKE_BINARY_DIR}/include)
foreach (package ${CGAL_CONFIGURED_PACKAGES})
set(CGAL_INCLUDE_DIRS ${CGAL_INCLUDE_DIRS} ${package}/include)
endforeach()
include_directories (${CGAL_INCLUDE_DIRS})
cache_get(CGAL_LIBRARY)
cache_get(CGAL_3RD_PARTY_PRECONFIGURED )
cache_get(CGAL_3RD_PARTY_DEFINITIONS )
cache_get(CGAL_3RD_PARTY_INCLUDE_DIRS )
cache_get(CGAL_3RD_PARTY_LIBRARIES )
cache_get(CGAL_3RD_PARTY_LIBRARIES_DIRS)
add_subdirectory(src)
hide_variable(EXECUTABLE_OUTPUT_PATH)
hide_variable(LIBRARY_OUTPUT_PATH)
#
# Repeat some problems
#
message("== Generating build files (DONE) ==\n")
if (CGAL_BRANCH_BUILD AND CGAL_REPORT_DUPLICATE_FILES )
message( STATUS "Problems: ")
if (CGAL_DUPLICATE_HEADER_FILES)
message(WARNING "WARNING: Duplicate header files")
foreach(hfile ${CGAL_DUPLICATE_HEADER_FILES})
message(STATUS " File '${hfile}' multiply found in ")
foreach (package ${CGAL_CONFIGURED_PACKAGES})
file(GLOB_RECURSE CGAL_PACKAGE_HEADER_FILES FOLLOW_SYMLINKS ${package}/*.h)
foreach (file ${CGAL_PACKAGE_HEADER_FILES})
string(REPLACE "${package}/" "" pure_file ${file})
if ("${pure_file}" STREQUAL "${hfile}")
message(STATUS " ${package}")
endif()
endforeach()
endforeach()
endforeach()
endif()
if (CGAL_DUPLICATE_CPP_FILES)
message(WARNING "WARNING: Duplicate cpp files")
foreach(cfile ${CGAL_DUPLICATE_CPP_FILES})
message(STATUS " File '${cfile}' multiply found in ")
foreach (package ${CGAL_CONFIGURED_PACKAGES})
file(GLOB_RECURSE CGAL_PACKAGE_CPP_FILES FOLLOW_SYMLINKS ${package}/*.cpp)
foreach (file ${CGAL_PACKAGE_CPP_FILES})
string(REPLACE "${package}/" "" pure_file ${file})
if ("${pure_file}" STREQUAL "${cfile}")
message(STATUS " ${package}")
endif()
endforeach()
endforeach()
endforeach()
endif()
endif()
#--------------------------------------------------------------------------------------------------
#
# -= USER SIDE SETTINGS =-
#
#--------------------------------------------------------------------------------------------------
# Set CGAL_LIBRARY_NAME, CGAL_Qt3_LIBRARY_NAME and so on. Those variables
# are the name of CGAL libraries, without the path. Used in the generation
# of the installed CGALConfig.cmake
get_filename_component(CGAL_LIBRARY_NAME "${CGAL_LIBRARY}" NAME CACHE)
hide_variable(CGAL_LIBRARY_NAME)
foreach(lib ${CGAL_CONFIGURED_LIBRARIES})
get_filename_component(CGAL_${lib}_LIBRARY_NAME "${CGAL_${lib}_LIBRARY}" NAME CACHE)
hide_variable(CGAL_${lib}_LIBRARY_NAME)
endforeach()
# fake to simplify loop
set(CGAL_CGAL_LIBRARY ${CGAL_LIBRARY})
hide_variable(CGAL_CGAL_LIBRARY)
set(CGAL_CGAL_LIBRARY_NAME ${CGAL_LIBRARY_NAME})
hide_variable(CGAL_CGAL_LIBRARY_NAME)
create_CGALconfig_files()
#--------------------------------------------------------------------------------------------------
#
# -= Installation Commands =-
#
#--------------------------------------------------------------------------------------------------
# DESTINATION option is mandatory; skipping it breaks CPack!
if(CGAL_INSTALL_DOC_DIR)
install(FILES AUTHORS CHANGES LICENSE LICENSE.FREE_USE LICENSE.GPL LICENSE.LGPL DESTINATION ${CGAL_INSTALL_DOC_DIR} )
endif()
#install all includes collected in trunk et cetera
foreach (dir ${CGAL_CONFIGURED_PACKAGES})
if (EXISTS ${dir}/include/CGAL)
install(DIRECTORY ${dir}/include/CGAL DESTINATION ${CGAL_INSTALL_INC_DIR} PATTERN ".svn" EXCLUDE)
endif()
endforeach()
install(DIRECTORY ${CMAKE_BINARY_DIR}/include/CGAL DESTINATION ${CGAL_INSTALL_INC_DIR} PATTERN ".svn" EXCLUDE)
file(GLOB scripts "scripts/*")
list(REMOVE_ITEM scripts
${CMAKE_CURRENT_SOURCE_DIR}/scripts/cgal_create_assertions.sh
${CMAKE_CURRENT_SOURCE_DIR}/scripts/cgal_create_cmake_script_with_options)
install(PROGRAMS ${scripts} DESTINATION ${CGAL_INSTALL_BIN_DIR})
install(DIRECTORY ${CGAL_MODULES_REL_DIR}/ DESTINATION ${CGAL_INSTALL_CMAKE_DIR} )
install(FILES ${CGAL_MODULES_REL_DIR}/UseCGAL.cmake DESTINATION ${CGAL_INSTALL_CMAKE_DIR} )
if ( GMP_IN_AUXILIARY )
install(DIRECTORY auxiliary/gmp/include/ DESTINATION ${CGAL_INSTALL_INC_DIR} )
install(DIRECTORY auxiliary/gmp/lib/ DESTINATION ${CGAL_INSTALL_LIB_DIR} )
endif()
if ( TAUCS_IN_AUXILIARY )
install(DIRECTORY auxiliary/taucs/include/ DESTINATION ${CGAL_INSTALL_INC_DIR} )
install(DIRECTORY auxiliary/taucs/lib/ DESTINATION ${CGAL_INSTALL_LIB_DIR} )
endif()
if ( ZLIB_IN_AUXILIARY )
install(DIRECTORY auxiliary/zlib/include/ DESTINATION ${CGAL_INSTALL_INC_DIR} )
install(DIRECTORY auxiliary/zlib/lib/ DESTINATION ${CGAL_INSTALL_LIB_DIR} )
endif()
install(FILES ${CMAKE_BINARY_DIR}/config/CGALConfig.cmake DESTINATION ${CGAL_INSTALL_CMAKE_DIR} )
if(CGAL_INSTALL_MAN_DIR)
install(FILES auxiliary/cgal_create_cmake_script.1 DESTINATION ${CGAL_INSTALL_MAN_DIR} )
endif()
#--------------------------------------------------------------------------------------------------
#
# -= Special installation commands to copy FindCGAL to the cmake directory =-
#
#--------------------------------------------------------------------------------------------------
# Installing FindCGAL into cmake itself is implemented as a custom target
# because it requires superuser privileges
if ( NOT "${CMAKE_ROOT}" STREQUAL "" )
if ( EXISTS ${CMAKE_ROOT}/Modules )
add_custom_target( install_FindCGAL
COMMAND ${CMAKE_COMMAND} -E copy ${CGAL_MODULES_DIR}/FindCGAL.cmake ${CMAKE_ROOT}/Modules
)
endif()
endif()
#--------------------------------------------------------------------------------------------------
#
# -= APPLICATIONS =-
#
#--------------------------------------------------------------------------------------------------
macro( add_programs subdir target ON_OFF )
cache_set( CGAL_EXECUTABLE_TARGETS "" )
add_custom_target( ${target} )
option( WITH_${target} "Select ${target}" ${ON_OFF} )
if ( WITH_${target} )
add_subdirectory( ${subdir} EXCLUDE_FROM_ALL )
endif()
cache_get( CGAL_EXECUTABLE_TARGETS )
foreach( CGAL_EXECUTABLE_TARGET ${CGAL_EXECUTABLE_TARGETS} )
add_dependencies( ${target} ${CGAL_EXECUTABLE_TARGET} )
endforeach()
endmacro()
# This allows programs to locate CGALConfig.cmake
set(CGAL_DIR ${CMAKE_BINARY_DIR} )
if ( NOT RUNNING_CGAL_AUTO_TEST )
add_programs(examples examples OFF )
add_programs(demo demos OFF )
endif()
#--------------------------------------------------------------------------------------------------
#
# -= CPack =-
#
#--------------------------------------------------------------------------------------------------
#option( WITH_CPACK "Create package generation rules")
if( WITH_CPACK AND EXISTS "${CMAKE_ROOT}/Modules/CPack.cmake" )
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "CGAL - Computational Geometry Algorithms Library")
set(CPACK_PACKAGE_VENDOR "CGAL Open Source Project")
set(CPACK_PACKAGE_DESCRIPTION_FILE "${CGAL_INSTALLATION_PACKAGE_DIR}/README")
set(CPACK_RESOURCE_FILE_LICENSE "${CGAL_INSTALLATION_PACKAGE_DIR}/LICENSE")
set(CPACK_PACKAGE_VERSION_MAJOR "${CGAL_MAJOR_VERSION}")
set(CPACK_PACKAGE_VERSION_MINOR "${CGAL_MINOR_VERSION}")
set(CPACK_PACKAGE_VERSION_PATCH "${CGAL_BUGFIX_VERSION}")
set(CPACK_PACKAGE_INSTALL_DIRECTORY "CGAL ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")
set(CPACK_SOURCE_PACKAGE_FILE_NAME "CGAL-${CGAL_VERSION}")
set(CPACK_RESOURCE_FILE_LICENSE "${CGAL_INSTALLATION_PACKAGE_DIR}/LICENSE")
if(NOT DEFINED CPACK_SYSTEM_NAME)
set(CPACK_SYSTEM_NAME ${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR})
endif()
if(${CPACK_SYSTEM_NAME} MATCHES Windows)
if(CMAKE_CL_64)
set(CPACK_SYSTEM_NAME win64-${CMAKE_SYSTEM_PROCESSOR})
else()
set(CPACK_SYSTEM_NAME win32-${CMAKE_SYSTEM_PROCESSOR})
endif()
endif()
if(NOT DEFINED CPACK_PACKAGE_FILE_NAME)
set(CPACK_PACKAGE_FILE_NAME "${CPACK_SOURCE_PACKAGE_FILE_NAME}-${CPACK_SYSTEM_NAME}")
endif()
set(CPACK_PACKAGE_EXECUTABLES "CGAL" "CGAL")
if(WIN32 AND NOT UNIX)
set(CPACK_GENERATOR "NSIS")
# There is a bug in NSI that does not handle full unix paths properly. Make
# sure there is at least one set of four (4) backlasshes.
#set(CPACK_PACKAGE_ICON "${CGAL_INSTALLATION_PACKAGE_DIR}\\\\cgal_install.gif")
#set(CPACK_NSIS_INSTALLED_ICON_NAME "bin\\\\CGAL.exe")
set(CPACK_NSIS_DISPLAY_NAME "${CPACK_PACKAGE_INSTALL_DIRECTORY} Computational Geometry Algorithms Library")
set(CPACK_NSIS_HELP_LINK "http:\\\\\\\\www.cgal.org")
set(CPACK_NSIS_URL_INFO_ABOUT "http:\\\\\\\\www.cgal.org")
set(CPACK_NSIS_CONTACT "info@cgal.org")
set(CPACK_NSIS_MODIfY_PATH ON)
else()
set(CPACK_STRIP_FILES "")
set(CPACK_SOURCE_STRIP_FILES "")
endif()
include(CPack)
endif()
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