set(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required
cmake_minimum_required( VERSION 2.8 )
PROJECT( Assimp )

option(BUILD_SHARED_LIBS "Build package with shared libraries." ON)
if(NOT BUILD_SHARED_LIBS)
  #set(CMAKE_EXE_LINKER_FLAGS "-static")
  set(LINK_SEARCH_START_STATIC TRUE)
endif(NOT BUILD_SHARED_LIBS)

# Define here the needed parameters
set (ASSIMP_VERSION_MAJOR 3)
set (ASSIMP_VERSION_MINOR 2)
set (ASSIMP_VERSION_PATCH 0) # subversion revision?
set (ASSIMP_VERSION ${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}.${ASSIMP_VERSION_PATCH})
set (ASSIMP_SOVERSION 3)
set (PROJECT_VERSION "${ASSIMP_VERSION}")

set(ASSIMP_PACKAGE_VERSION "0" CACHE STRING "the package-specific version used for uploading the sources")

# Needed for openddl_parser config, no use of c++11 at this moment
add_definitions( -DOPENDDL_NO_USE_CPP11 )
set_property( GLOBAL PROPERTY CXX_STANDARD 11 )

# Get the current working branch
execute_process(
  COMMAND git rev-parse --abbrev-ref HEAD
  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_BRANCH
  OUTPUT_STRIP_TRAILING_WHITESPACE
  ERROR_QUIET
)

# Get the latest abbreviated commit hash of the working branch
execute_process(
  COMMAND git log -1 --format=%h
  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE GIT_COMMIT_HASH
  OUTPUT_STRIP_TRAILING_WHITESPACE
  ERROR_QUIET
)

if(NOT GIT_COMMIT_HASH)
  set(GIT_COMMIT_HASH 0)
endif(NOT GIT_COMMIT_HASH)

configure_file(
  ${CMAKE_CURRENT_SOURCE_DIR}/revision.h.in
  ${CMAKE_CURRENT_BINARY_DIR}/revision.h
)

include_directories(${CMAKE_CURRENT_BINARY_DIR})

option(ASSIMP_OPT_BUILD_PACKAGES "Set to ON to generate CPack configuration files and packaging targets" OFF)
set(CMAKE_MODULE_PATH       "${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules" )
set(LIBASSIMP_COMPONENT     "libassimp${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}.${ASSIMP_VERSION_PATCH}" )
set(LIBASSIMP-DEV_COMPONENT "libassimp${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}.${ASSIMP_VERSION_PATCH}-dev" )
set(CPACK_COMPONENTS_ALL assimp-bin ${LIBASSIMP_COMPONENT} ${LIBASSIMP-DEV_COMPONENT} assimp-dev)
set(ASSIMP_LIBRARY_SUFFIX "" CACHE STRING "Suffix to append to library names")

option(ASSIMP_ANDROID_JNIIOSYSTEM "Android JNI IOSystem support is active" OFF)

# Workaround to be able to deal with compiler bug "Too many sections" with mingw.
if( CMAKE_COMPILER_IS_MINGW )
  ADD_DEFINITIONS(-DASSIMP_BUILD_NO_IFC_IMPORTER )
endif()

if((CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX) AND NOT CMAKE_COMPILER_IS_MINGW)
  if (BUILD_SHARED_LIBS AND CMAKE_SIZEOF_VOID_P EQUAL 8) # -fPIC is only required for shared libs on 64 bit
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
  endif()
  # hide all not-exported symbols
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden -Wall -std=c++0x" )
elseif(MSVC)
  # enable multi-core compilation with MSVC
  add_compile_options(/MP)
elseif ( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" )
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden -Wall -Wno-long-long -pedantic -std=c++11" )
endif()

INCLUDE (FindPkgConfig)
INCLUDE_DIRECTORIES( include )

INCLUDE (PrecompiledHeader)

# If this is an in-source build (CMAKE_SOURCE_DIR == CMAKE_BINARY_DIR),
# write the library/executable files to the respective directories in the
# source tree. During an out-of-source build, however, do not litter this
# directory, since that is probably what the user wanted to avoid.
IF ( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
  SET( CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_HOME_DIRECTORY}/lib" )
  SET( CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_HOME_DIRECTORY}/lib" )
  SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_HOME_DIRECTORY}/bin" )
ENDIF ( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )

# Cache these to allow the user to override them manually.
SET( ASSIMP_LIB_INSTALL_DIR "lib" CACHE PATH
  "Path the built library files are installed to." )
SET( ASSIMP_INCLUDE_INSTALL_DIR "include" CACHE PATH
  "Path the header files are installed to." )
SET( ASSIMP_BIN_INSTALL_DIR "bin" CACHE PATH
  "Path the tool executables are installed to." )

IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
  SET(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "Debug Postfix for lib, samples and tools")
ELSE()
  SET(CMAKE_DEBUG_POSTFIX "" CACHE STRING "Debug Postfix for lib, samples and tools")
ENDIF()

# Only generate this target if no higher-level project already has
IF (NOT TARGET uninstall)
  # add make uninstall capability
  configure_file("${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules/cmake_uninstall.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake" IMMEDIATE @ONLY)
  add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")
ENDIF()



# cmake configuration files
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config.cmake.in"         "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake" @ONLY IMMEDIATE)
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/assimp-config-version.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/assimp-config-version.cmake" @ONLY IMMEDIATE)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/assimp-config.cmake"             "${CMAKE_CURRENT_BINARY_DIR}/assimp-config-version.cmake" DESTINATION "${ASSIMP_LIB_INSTALL_DIR}/cmake/assimp-${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}" COMPONENT ${LIBASSIMP-DEV_COMPONENT})

FIND_PACKAGE( DirectX )

option ( ASSIMP_NO_EXPORT
  "Disable Assimp's export functionality."
  OFF
)

if( CMAKE_COMPILER_IS_GNUCXX )
  set(LIBSTDC++_LIBRARIES -lstdc++)
endif( CMAKE_COMPILER_IS_GNUCXX )

# Search for external dependencies, and build them from source if not found
# Search for zlib
find_package(ZLIB)
if( NOT ZLIB_FOUND )
  message(STATUS "compiling zlib from souces")
  include(CheckIncludeFile)
  include(CheckTypeSize)
  include(CheckFunctionExists)
  # compile from sources
  add_subdirectory(contrib/zlib)
  set(ZLIB_FOUND 1)
  set(ZLIB_LIBRARIES zlibstatic)
  set(ZLIB_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/contrib/zlib ${CMAKE_CURRENT_BINARY_DIR}/contrib/zlib)
else(NOT ZLIB_FOUND)
  ADD_DEFINITIONS(-DASSIMP_BUILD_NO_OWN_ZLIB)
  set(ZLIB_LIBRARIES_LINKED -lz)
endif(NOT ZLIB_FOUND)
INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})

# Search for unzip
if (PKG_CONFIG_FOUND)
  PKG_CHECK_MODULES(UNZIP minizip)
endif (PKG_CONFIG_FOUND)

IF ( ASSIMP_NO_EXPORT )
  ADD_DEFINITIONS( -DASSIMP_BUILD_NO_EXPORT)
  MESSAGE( STATUS "Build an import-only version of Assimp." )
ENDIF( ASSIMP_NO_EXPORT )

SET ( ASSIMP_BUILD_ARCHITECTURE "" CACHE STRING
  "describe the current architecture."
)
IF    ( ASSIMP_BUILD_ARCHITECTURE STREQUAL "")
ELSE  ( ASSIMP_BUILD_ARCHITECTURE STREQUAL "")
  ADD_DEFINITIONS ( -D'ASSIMP_BUILD_ARCHITECTURE="${ASSIMP_BUILD_ARCHITECTURE}"' )
ENDIF ( ASSIMP_BUILD_ARCHITECTURE STREQUAL "")

# ${CMAKE_GENERATOR}
SET ( ASSIMP_BUILD_COMPILER "" CACHE STRING
  "describe the current compiler."
)
IF    ( ASSIMP_BUILD_COMPILER STREQUAL "")
ELSE  ( ASSIMP_BUILD_COMPILER STREQUAL "")
  ADD_DEFINITIONS ( -D'ASSIMP_BUILD_COMPILER="${ASSIMP_BUILD_COMPILER}"' )
ENDIF ( ASSIMP_BUILD_COMPILER STREQUAL "")

MARK_AS_ADVANCED ( ASSIMP_BUILD_ARCHITECTURE ASSIMP_BUILD_COMPILER )


SET ( ASSIMP_BUILD_NONFREE_C4D_IMPORTER OFF CACHE BOOL
  "Build the C4D importer, which relies on the non-free Melange SDK."
)

IF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
  IF ( MSVC )
    SET(C4D_INCLUDES "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Melange/_melange/includes")

    # pick the correct prebuilt library
    IF(MSVC11)
      SET(C4D_LIB_POSTFIX "_2012md")
    ELSEIF(MSVC10)
      SET(C4D_LIB_POSTFIX "_2010md")
    ELSEIF(MSVC90)
      SET(C4D_LIB_POSTFIX "_2008md")
    ELSE()
      MESSAGE( FATAL_ERROR
        "C4D is currently only supported with MSVC 9, 10, 11"
      )
    ENDIF()

    IF(CMAKE_CL_64)
      SET(C4D_LIB_ARCH_POSTFIX "_x64")
    ELSE()
      SET(C4D_LIB_ARCH_POSTFIX "")
    ENDIF()

    SET(C4D_LIB_BASE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/contrib/Melange/_melange/lib/WIN")

    SET(C4D_DEBUG_LIBRARY "${C4D_LIB_BASE_PATH}/debug/_melange_lib${C4D_LIB_ARCH_POSTFIX}${C4D_LIB_POSTFIX}.lib")
    SET(C4D_RELEASE_LIBRARY "${C4D_LIB_BASE_PATH}/release/_melange_lib${C4D_LIB_ARCH_POSTFIX}${C4D_LIB_POSTFIX}.lib")

    # winsock and winmm are necessary dependencies of melange (this is undocumented, but true.)
    SET(C4D_EXTRA_LIBRARIES WSock32.lib Winmm.lib)
  ELSE ()
    MESSAGE( FATAL_ERROR
      "C4D is currently only available on Windows with melange SDK installed in contrib/Melange"
    )
  ENDIF ( MSVC )
else (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)
  ADD_DEFINITIONS( -DASSIMP_BUILD_NO_C4D_IMPORTER )
ENDIF (ASSIMP_BUILD_NONFREE_C4D_IMPORTER)



ADD_SUBDIRECTORY( code/ )
option ( ASSIMP_BUILD_ASSIMP_TOOLS
  "If the supplementary tools for Assimp are built in addition to the library."
  ON
)
IF ( ASSIMP_BUILD_ASSIMP_TOOLS )
  IF ( WIN32 AND DirectX_FOUND )
    ADD_SUBDIRECTORY( tools/assimp_view/ )
  ENDIF ( WIN32 AND DirectX_FOUND )
  ADD_SUBDIRECTORY( tools/assimp_cmd/ )
ENDIF ( ASSIMP_BUILD_ASSIMP_TOOLS )

option ( ASSIMP_BUILD_SAMPLES
  "If the official samples are built as well (needs Glut)."
  OFF
)

IF ( ASSIMP_BUILD_SAMPLES)
  IF ( WIN32 )
    ADD_SUBDIRECTORY( samples/SimpleTexturedOpenGL/ )
  ENDIF ( WIN32 )
  ADD_SUBDIRECTORY( samples/SimpleOpenGL/ )
ENDIF ( ASSIMP_BUILD_SAMPLES )

option ( ASSIMP_BUILD_TESTS
  "If the test suite for Assimp is built in addition to the library."
  ON
)

IF ( ASSIMP_BUILD_TESTS )
  ADD_SUBDIRECTORY( test/ )
ENDIF ( ASSIMP_BUILD_TESTS )

IF(MSVC)
  option ( ASSIMP_INSTALL_PDB
    "Install MSVC debug files."
    ON
  )
ENDIF(MSVC)

# Generate a pkg-config .pc for the Assimp library.
CONFIGURE_FILE( "${PROJECT_SOURCE_DIR}/assimp.pc.in" "${PROJECT_BINARY_DIR}/assimp.pc" @ONLY )
INSTALL( FILES "${PROJECT_BINARY_DIR}/assimp.pc" DESTINATION ${ASSIMP_LIB_INSTALL_DIR}/pkgconfig/ COMPONENT ${LIBASSIMP-DEV_COMPONENT})

if(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
  # Packing information
  set(CPACK_PACKAGE_NAME                    "assimp{ASSIMP_VERSION_MAJOR}")
  set(CPACK_PACKAGE_CONTACT "" CACHE STRING "Package maintainer and PGP signer.")
  set(CPACK_PACKAGE_VENDOR                  "https://github.com/assimp")
  set(CPACK_PACKAGE_DISPLAY_NAME            "Assimp ${ASSIMP_VERSION}")
  set(CPACK_PACKAGE_DESCRIPTION_SUMMARY     " - Open Asset Import Library ${ASSIMP_VERSION}")
  set(CPACK_PACKAGE_VERSION                 "${ASSIMP_VERSION}.${ASSIMP_PACKAGE_VERSION}" )
  set(CPACK_PACKAGE_VERSION_MAJOR           "${ASSIMP_VERSION_MAJOR}")
  set(CPACK_PACKAGE_VERSION_MINOR           "${ASSIMP_VERSION_MINOR}")
  set(CPACK_PACKAGE_VERSION_PATCH           "${ASSIMP_VERSION_PATCH}")
  set(CPACK_PACKAGE_INSTALL_DIRECTORY       "assimp${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}")
  set(CPACK_RESOURCE_FILE_LICENSE           "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")

  string(TOUPPER ${LIBASSIMP_COMPONENT}     "LIBASSIMP_COMPONENT_UPPER")
  string(TOUPPER ${LIBASSIMP-DEV_COMPONENT} "LIBASSIMP-DEV_COMPONENT_UPPER")

  set(CPACK_COMPONENT_ASSIMP-BIN_DISPLAY_NAME                       "tools")
  set(CPACK_COMPONENT_ASSIMP-BIN_DEPENDS                            "${LIBASSIMP_COMPONENT}" )
  set(CPACK_COMPONENT_${LIBASSIMP_COMPONENT_UPPER}_DISPLAY_NAME     "libraries")
  set(CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT_UPPER}_DISPLAY_NAME "common headers and installs")
  set(CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT_UPPER}_DEPENDS $    "{LIBASSIMP_COMPONENT}" )
  set(CPACK_COMPONENT_ASSIMP-DEV_DISPLAY_NAME                       "${CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT}_DISPLAY_NAME}" )
  set(CPACK_COMPONENT_ASSIMP-DEV_DEPENDS                            "${LIBASSIMP-DEV_COMPONENT}" )
  set(CPACK_DEBIAN_BUILD_DEPENDS debhelper cmake zlib1g-dev pkg-config)

  # debian
  set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
  set(CPACK_DEBIAN_CMAKE_OPTIONS    "-DBUILD_ASSIMP_SAMPLES:BOOL=${ASSIMP_BUILD_SAMPLES}")
  set(CPACK_DEBIAN_PACKAGE_SECTION  "libs" )
  set(CPACK_DEBIAN_PACKAGE_DEPENDS  "${CPACK_COMPONENTS_ALL}")
  set(CPACK_DEBIAN_PACKAGE_SUGGESTS)
  set(CPACK_DEBIAN_PACKAGE_NAME     "assimp")
  set(CPACK_DEBIAN_PACKAGE_REMOVE_SOURCE_FILES contrib/cppunit-1.12.1 contrib/cppunit_note.txt contrib/zlib workspaces test doc obj samples packaging)
  set(CPACK_DEBIAN_PACKAGE_SOURCE_COPY svn export --force)
  set(CPACK_DEBIAN_CHANGELOG)
  execute_process(COMMAND lsb_release -is
    OUTPUT_VARIABLE _lsb_distribution OUTPUT_STRIP_TRAILING_WHITESPACE
    RESULT_VARIABLE _lsb_release_failed)
  set(CPACK_DEBIAN_DISTRIBUTION_NAME ${_lsb_distribution} CACHE STRING "Name of the distrubiton")
  string(TOLOWER ${CPACK_DEBIAN_DISTRIBUTION_NAME} CPACK_DEBIAN_DISTRIBUTION_NAME)
  if( ${CPACK_DEBIAN_DISTRIBUTION_NAME} STREQUAL "ubuntu" )
    set(CPACK_DEBIAN_DISTRIBUTION_RELEASES lucid maverick natty oneiric precise CACHE STRING "Release code-names of the distrubiton release")
  endif()
  set(DPUT_HOST "" CACHE STRING "PPA repository to upload the debian sources")
  include(CPack)
  include(DebSourcePPA)
endif()

if(WIN32)
	if (CMAKE_SIZEOF_VOID_P EQUAL 8)
		set(BIN_DIR "${PROJECT_SOURCE_DIR}/bin64/")
		set(LIB_DIR "${PROJECT_SOURCE_DIR}/lib64/")
	elseif()
		set(BIN_DIR "${PROJECT_SOURCE_DIR}/bin32/")
		set(LIB_DIR "${PROJECT_SOURCE_DIR}/lib32/")
	endif()

	if(MSVC12)
		set(ASSIMP_MSVC_VERSION "vc120")
	elseif(MSVC14)
		set(ASSIMP_MSVC_VERSION "vc140")
	endif(MSVC12)

	if(MSVC12 OR MSVC14)
		add_custom_target(UpdateAssimpLibsDebugSymbolsAndDLLs COMMENT "Copying Assimp Libraries ..." VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Release/assimp-${ASSIMP_MSVC_VERSION}-mt.dll	${BIN_DIR}assimp-${ASSIMP_MSVC_VERSION}-mt.dll VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Release/assimp-${ASSIMP_MSVC_VERSION}-mt.exp	${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mt.exp VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Release/assimp-${ASSIMP_MSVC_VERSION}-mt.lib	${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mt.lib VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Debug/assimp-${ASSIMP_MSVC_VERSION}-mtd.dll		${BIN_DIR}assimp-${ASSIMP_MSVC_VERSION}-mtd.dll  VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Debug/assimp-${ASSIMP_MSVC_VERSION}-mtd.exp		${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mtd.exp VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Debug/assimp-${ASSIMP_MSVC_VERSION}-mtd.ilk		${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mtd.ilk VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Debug/assimp-${ASSIMP_MSVC_VERSION}-mtd.lib		${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mtd.lib VERBATIM)
		add_custom_command(TARGET UpdateAssimpLibsDebugSymbolsAndDLLs COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_BINARY_DIR}/code/Debug/assimp-${ASSIMP_MSVC_VERSION}-mtd.pdb		${LIB_DIR}assimp-${ASSIMP_MSVC_VERSION}-mtd.pdb VERBATIM)
	endif(MSVC12 OR MSVC14)
endif (WIN32)