CMakeLists.txt

#
# Master AtomSpace CMake file.
#
# General organization:
# -- check for different compilers, OS'es
# -- search for various required & optional libraries/tools
# -- decide what to build based on above results.
# -- configure various config files.
# -- print pretty summary
#
# Need to have cmake-2.8.8 in order to be able to check the compiler
# version.
CMAKE_MINIMUM_REQUIRED(VERSION 2.8.8)
IF (COMMAND CMAKE_POLICY)
	CMAKE_POLICY(SET CMP0003 NEW)
	CMAKE_POLICY(SET CMP0005 OLD)
ENDIF (COMMAND CMAKE_POLICY)

IF(CMAKE_VERSION VERSION_GREATER 3.0.2)
	CMAKE_POLICY(SET CMP0037 OLD)
ENDIF(CMAKE_VERSION VERSION_GREATER 3.0.2)

PROJECT(atomspace)

# get atomspace version
FILE(READ "${CMAKE_SOURCE_DIR}/opencog/atomspace/version.h" _ATOMSPACE_H_CONTENTS)
STRING(REGEX MATCH
    "#define ATOMSPACE_MAJOR_VERSION ([0-9]+)"
    _ "${_ATOMSPACE_H_CONTENTS}")
SET(CPACK_PACKAGE_VERSION_MAJOR ${CMAKE_MATCH_1})
STRING(REGEX MATCH
    "#define ATOMSPACE_MINOR_VERSION ([0-9]+)"
    _ "${_ATOMSPACE_H_CONTENTS}")
SET(CPACK_PACKAGE_VERSION_MINOR ${CMAKE_MATCH_1})
STRING(REGEX MATCH
    "#define ATOMSPACE_MICRO_VERSION ([0-9]+)"
    _ "${_ATOMSPACE_H_CONTENTS}")
SET(CPACK_PACKAGE_VERSION_PATCH ${CMAKE_MATCH_1})
SET(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")

# To supress Cygwin warning "CMake no longer defines WIN32 on Cygwin!"
# Remove when CMake >= 2.8.4 is required to build the project
set(CMAKE_LEGACY_CYGWIN_WIN32 0)

# uncomment to be in Release mode [default]
# SET(CMAKE_BUILD_TYPE Release)

# uncomment to build in debug mode
# SET(CMAKE_BUILD_TYPE Debug)

# uncomment to be in coverage testing mode
# SET(CMAKE_BUILD_TYPE Coverage)

# uncomment to build in profile mode
# SET(CMAKE_BUILD_TYPE Profile)

# uncomment to build in release mode with debug information
# SET(CMAKE_BUILD_TYPE RelWithDebInfo)

# default build type
IF (CMAKE_BUILD_TYPE STREQUAL "")
	SET(CMAKE_BUILD_TYPE Release)
ENDIF (CMAKE_BUILD_TYPE STREQUAL "")

MESSAGE(STATUS "Build type: ${CMAKE_BUILD_TYPE}")

ADD_DEFINITIONS(-DPROJECT_SOURCE_DIR=\\"${CMAKE_SOURCE_DIR}\\"
                -DPROJECT_BINARY_DIR=\\"${CMAKE_BINARY_DIR}\\")

# add the 'lib' dir to cmake's module search path
list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/lib/")

# Cogutil
FIND_PACKAGE(CogUtil CONFIG)
IF (COGUTIL_FOUND)
	MESSAGE(STATUS "CogUtil found.")
	ADD_DEFINITIONS(-DHAVE_COGUTIL)
    SET(HAVE_COGUTIL 1)
ELSE (COGUTIL_FOUND)
	MESSAGE(FATAL_ERROR "CogUtil missing: it is needed for everything!")
ENDIF (COGUTIL_FOUND)

# add the 'cmake' directory from cogutil to search path
list(APPEND CMAKE_MODULE_PATH  ${COGUTIL_DATA_DIR}/cmake)

include(${COGUTIL_DATA_DIR}/cmake/Summary.cmake)
# ===============================================================
# Detect different compilers and OS'es, tweak flags as necessary.

IF (CMAKE_COMPILER_IS_GNUCXX)
	# gcc before version 4.8 does not support the c++11 definition
	# of thread_local.
	IF (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8.0)
		MESSAGE(FATAL_ERROR "GCC version must be at least 4.8.0!")
	ENDIF (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8.0)

	IF (APPLE)
		CMAKE_POLICY(SET CMP0042 NEW)  # Something about MACOSX_RPATH

		SET(CMAKE_C_FLAGS "-Wall -Wno-long-long -Wno-conversion")
		SET(CMAKE_C_FLAGS_DEBUG "-O0 -g")
		SET(CMAKE_C_FLAGS_PROFILE "-O0 -pg")
		SET(CMAKE_C_FLAGS_RELEASE "-O2 -g0")
		# Vital to do this otherwise unresolved symbols everywhere:
		SET(CMAKE_SHARED_LINKER_FLAGS "-Wl,-flat_namespace,-undefined,dynamic_lookup")
		SET(CMAKE_EXE_LINKER_FLAGS "-Wl,-flat_namespace,-undefined,dynamic_lookup")

		# The Apple linker does not support the --no-as-needed flag.
		SET(NO_AS_NEEDED "")

	ELSE (APPLE)
		SET(CMAKE_C_FLAGS "-Wall -fPIC")
		# SET(CMAKE_C_FLAGS "-Wl,--copy-dt-needed-entries")
		SET(CMAKE_C_FLAGS_DEBUG "-O0 -ggdb3 -fstack-protector")
		SET(CMAKE_C_FLAGS_PROFILE "-O2 -g3 -fstack-protector -pg")
		# -flto is good for performance, but wow is it slow to link...
		# XXX disable for now ... its just to painful, in daily life.
		# ... except that the buildbot needs this, to pass unit tests.
		# Current failure is in libatomcore, which depends on atomutils
		# (ldd -r libatomcore.so shows unresolved symbols.)
		SET(CMAKE_C_FLAGS_RELEASE "-O3 -g -fstack-protector")
		# SET(CMAKE_C_FLAGS_RELEASE "-O3 -g -fstack-protector -flto")
		# SET(CMAKE_C_FLAGS_RELEASE "-O3 -g -fstack-protector -flto=8")

		SET(NO_AS_NEEDED "-Wl,--no-as-needed")
		LINK_LIBRARIES(pthread)

		# Workaround for circular dependencies problem. This causes
		# LINK_LIBRARIES to appear twice in the linker line; the
		# second appearance has the effect of resolving any circular
		# dependencies left over from the first specification.
		# See pull request #642 for more discussion.
		SET(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} <LINK_LIBRARIES>")
	ENDIF (APPLE)

	# 1) -Wno-variadic-macros is to avoid warnings regarding using
	# variadic in macro OC_ASSERT (the warning warns that this is only
	# available from C99, lol!)
	#
	# 2) -fopenmp for multithreading support
	#
	# 3) -std=gnu++11 for C++11 and GNU extensions support
	SET(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -Wno-variadic-macros -fopenmp -std=gnu++11")

	SET(CMAKE_CXX_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})
	SET(CMAKE_CXX_FLAGS_PROFILE ${CMAKE_C_FLAGS_PROFILE})
	SET(CMAKE_CXX_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE})

	# Options for generating gcov code coverage output
	SET(CMAKE_C_FLAGS_COVERAGE "-O0 -g -fprofile-arcs -ftest-coverage -fno-inline")
	SET(CMAKE_CXX_FLAGS_COVERAGE "${CMAKE_C_FLAGS_COVERAGE} -fno-default-inline")
	# Might be needed for some combinations of ln and gcc
	IF (CMAKE_BUILD_TYPE STREQUAL "Coverage")
		LINK_LIBRARIES(gcov)
	ENDIF (CMAKE_BUILD_TYPE STREQUAL "Coverage")
ENDIF (CMAKE_COMPILER_IS_GNUCXX)

# The default case for non-profile builds is to use shared libraries. So don't
# use explicit SHARED in the ADD_LIBRARY calls in CMakeLists.txt instances or
# this flag won't work since it only affects the default.
IF (CMAKE_BUILD_TYPE STREQUAL "Profile")
	SET(BUILD_SHARED_LIBS OFF)
ELSE (CMAKE_BUILD_TYPE STREQUAL "Profile")
	SET(BUILD_SHARED_LIBS ON)
ENDIF (CMAKE_BUILD_TYPE STREQUAL "Profile")


# Do the windows build
IF (WIN32)
	ADD_DEFINITIONS(-DWIN32)
	IF (CYGWIN)
		ADD_DEFINITIONS(-DCYGWIN)
	#   SET(WIN32 1)
	ENDIF (CYGWIN)

	# It is "not unix" when the code is compiled under windows but not
	# under cygwin
	IF (NOT UNIX)
		ADD_DEFINITIONS(-DWIN32_NOT_UNIX)
		FIND_PACKAGE(PThreads REQUIRED)
		FIND_PACKAGE(STLPort REQUIRED)
		INCLUDE_DIRECTORIES("${CMAKE_SOURCE_DIR}/include/win32" ${PTHREADS_INCLUDE_DIR} ${STLPORT_INCLUDE_DIR})
		LINK_LIBRARIES(${PTHREADS_LIBRARY} ${STLPORT_LIBRARIES})
		ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE)
	ELSE (NOT UNIX)
		LINK_LIBRARIES(pthread)
		IF (CYGWIN)
			SET(CMAKE_SHARED_LINKER_FLAGS "-Wl")
		ELSE (CYGWIN)
			SET(CMAKE_SHARED_LINKER_FLAGS "-Wl,--enable-new-dtags")
		ENDIF (CYGWIN)
	ENDIF (NOT UNIX)
ENDIF (WIN32)

# ===================================================================
# Check for existance of various required, optional packages.

# Check for boost. We need dynamic-linked, threaded libs by default.
SET(Boost_USE_STATIC_LIBS OFF)
SET(Boost_USE_MULTITHREADED ON)

# Required boost packages
# hypertable requires boost iostreams
# boost-1.49 no longer has a libboost_iostreams
# 1.46 is minimum for required filesystem support
# program_options needed by some combo utilities
FIND_PACKAGE(Boost 1.46 COMPONENTS date_time filesystem program_options regex serialization system thread REQUIRED)

IF(Boost_FOUND)
	SET(Boost_FOUND_SAVE 1)

	# Boost.Signals2 requires this in signal_type.hpp
	SET(BOOST_PARAMETER_MAX_ARITY 7)
	ADD_DEFINITIONS(-DBOOST_PARAMETER_MAX_ARITY=${BOOST_PARAMETER_MAX_ARITY})
ELSE(Boost_FOUND)
	MESSAGE(FATAL_ERROR "Boost 1.46 or newer is needed to build OpenCog!")
ENDIF(Boost_FOUND)

# Opencog won't compile with Boost 1.51, some kind of conflict with
# hash functions, see github bugs 1 and 36
IF(105100 EQUAL ${Boost_VERSION})
	MESSAGE(FATAL_ERROR "Boost version 1.51 will not work with OpenCog.  Please use a different version.")
ENDIF(105100 EQUAL ${Boost_VERSION})
MESSAGE(STATUS "Boost version ${Boost_VERSION} found.")

# Optional boost packages; can build without these.
# FIND_PACKAGE(Boost 1.46 COMPONENTS python program_options QUIET)
# FIND_PACKAGE(Boost 1.46 COMPONENTS math_c99 QUIET)

# Arghhh. Except cmake is treating above as required, not optional. #$%**&
IF(Boost_FOUND_SAVE)
	SET(Boost_FOUND 1)
ENDIF(Boost_FOUND_SAVE)

FIND_PACKAGE(Cxxtest)
IF (CXXTEST_FOUND)
	MESSAGE(STATUS "CxxTest found.")
ELSE (CXXTEST_FOUND)
	MESSAGE(STATUS "CxxTest missing: needed for unit tests.")
ENDIF (CXXTEST_FOUND)

FIND_PACKAGE(LibGearman)
ADD_DEFINITIONS(-DHAVE_GEARMAN)
IF(GEARMAN_FOUND)
	SET(HAVE_GEARMAN 1)
	SET(GEARMAN_DIR_MESSAGE "Gearman found.")
ELSE (GEARMAN_FOUND)
	SET(HAVE_GEARMAN 0)
	SET(GEARMAN_DIR_MESSAGE "Gearman not found.")
ENDIF(GEARMAN_FOUND)
MESSAGE(STATUS "${GEARMAN_DIR_MESSAGE}")

# This is required for Guile
FIND_LIBRARY(GMP_LIBRARY gmp)
FIND_PATH(GMP_INCLUDE_DIR gmp.h)

# Gnu Guile scheme interpreter
# Version 2.2.2 is needed for mrs io ports, compilation, atomics, nlp
FIND_PACKAGE(Guile 2.2.2)
IF (GUILE_FOUND AND GMP_LIBRARY AND GMP_INCLUDE_DIR)
	ADD_DEFINITIONS(-DHAVE_GUILE)
	SET(HAVE_GUILE 1)
	INCLUDE_DIRECTORIES(${GUILE_INCLUDE_DIR})
ELSE (GUILE_FOUND AND GMP_LIBRARY AND GMP_INCLUDE_DIR)
	SET(GUILE_DIR_MESSAGE "Guile was not found; the scheme shell will not be built.\nTo over-ride, make sure GUILE_LIBRARIES and GUILE_INCLUDE_DIRS are set.")
	MESSAGE(FATAL_ERROR "${GUILE_DIR_MESSAGE}")
ENDIF (GUILE_FOUND AND GMP_LIBRARY AND GMP_INCLUDE_DIR)

# Hypertable library, for atomspace persistence
FIND_PACKAGE(HyperTable)
IF (HYPERTABLE_FOUND)
	ADD_DEFINITIONS(-DHAVE_HYPERTABLE)
	SET(HAVE_HYPERTABLE 1)
	MESSAGE(STATUS "Hypertable was found.")

	# Don't bother looking for SIGAR unlesss hyperable was found.
	FIND_PACKAGE(SIGAR)
	IF (SIGAR_FOUND)
	ELSE (SIGAR_FOUND)
		MESSAGE(WARNING "SIGAR was not found! It is needed for Hypertable support.")
	ENDIF (SIGAR_FOUND)

ELSE (HYPERTABLE_FOUND)
	# The FindHypertable.cmake file already prints a message.
	# MESSAGE(STATUS "Hypertable was not found; hypertable support will not be built.\n   To over-ride, make sure HYPERTABLE_LIBRARIES and HYPERTABLE_INCLUDE_DIRS\n   are set.")
	MESSAGE(STATUS "Hypertable not found; the experimental distributed persistence DB needs it.")

ENDIF (HYPERTABLE_FOUND)

# Google Protobuf library
# The protocol buffer compiler is needed for ZMQ-based persistence.
FIND_PACKAGE(Protobuf)
IF (PROTOBUF_FOUND
		AND PROTOBUF_LIBRARY
		AND PROTOBUF_INCLUDE_DIR
		AND PROTOBUF_PROTOC_EXECUTABLE)

	ADD_DEFINITIONS(-DHAVE_PROTOBUF)
	SET(HAVE_PROTOBUF 1)
	SET(PROTOBUF_DIR_MESSAGE "Protobuf was found.")

ELSE (PROTOBUF_FOUND
		AND PROTOBUF_LIBRARY
		AND PROTOBUF_INCLUDE_DIR
		AND PROTOBUF_PROTOC_EXECUTABLE)

	# If we are here, then we are missing either the libraries, or the
	# compiler. React appropriately.
	IF (PROTOBUF_PROTOC_EXECUTABLE)
		SET(PROTOBUF_DIR_MESSAGE "Protobuf libraries were not found; these are needed to link the ZMQ-based persistence backend.\n	To over-ride, make sure PROTOBUF_LIBRARIES and PROTOBUF_INCLUDE_DIRS are set.")
	ELSE (PROTOBUF_PROTOC_EXECUTABLE)
		SET(PROTOBUF_DIR_MESSAGE "Protobuf compiler was not found; the ZMQ-based persistence backend can't be built without it.\n	To over-ride, make sure PROTOBUF_PROTOC_EXECUTABLE is set.")
	ENDIF (PROTOBUF_PROTOC_EXECUTABLE)

ENDIF (PROTOBUF_FOUND
		AND PROTOBUF_LIBRARY
		AND PROTOBUF_INCLUDE_DIR
		AND PROTOBUF_PROTOC_EXECUTABLE)

MESSAGE(STATUS "${PROTOBUF_DIR_MESSAGE}")

# -----------------------------------------------------------------------------
# Python and Cython
#
# NOTE: Python interpreter is needed for runing python unit tests, and for
# running the FindCython module.
#
# Search for Python3 first, and use that, if found. Else use Python2.
# To use Python2 only from the build directory run the following
# rm CMakeCache.txt && cmake -DCMAKE_DISABLE_FIND_PACKAGE_Python3Interp=TRUE ..

FIND_PACKAGE(Python3Interp)
IF (3.4.0 VERSION_LESS "${PYTHON3_VERSION_STRING}")
	SET (HAVE_PY_INTERP 1)
	SET (PYTHON_VER python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR})
	MESSAGE(STATUS "Python ${PYTHON3_VERSION_STRING} interpreter found.")
ENDIF()

IF (NOT HAVE_PY_INTERP)
	FIND_PACKAGE(PythonInterp)
	IF (2.7.0 VERSION_LESS ${PYTHON_VERSION_STRING})
		SET (HAVE_PY_INTERP 1)
		SET (PYTHON_VER python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR})
		MESSAGE(STATUS "Python ${PYTHON_VERSION_STRING} interpreter found.")
	ENDIF()
ENDIF()

FIND_PACKAGE(PythonLibs)
IF (PYTHONLIBS_FOUND AND
     ((PYTHON3INTERP_FOUND AND 3.4.0 VERSION_LESS ${PYTHONLIBS_VERSION_STRING})
     OR
     (2.7.0 VERSION_LESS ${PYTHONLIBS_VERSION_STRING})))
	SET (HAVE_PY_LIBS 1)
	MESSAGE(STATUS "Python ${PYTHONLIBS_VERSION_STRING} libraries found.")
ELSE()
	MESSAGE(STATUS "Python libraries NOT found.")
ENDIF()

# Cython is used to generate python bindings.
IF(HAVE_PY_INTERP)
	FIND_PACKAGE(Cython 0.23.0)

	IF (CYTHON_FOUND AND HAVE_PY_LIBS)
		# Find python destination dir for python bindings because it may
		# differ on each operating system.
		ADD_DEFINITIONS(-DHAVE_CYTHON)
		SET(HAVE_CYTHON 1)

		# Hack together some reasonable install location.
		SET(PYTHON_DEST
			"lib${LIB_DIR_SUFFIX}/${PYTHON_VER}/dist-packages/opencog")
		MESSAGE(STATUS
			"Python install dir: ${CMAKE_INSTALL_PREFIX}/${PYTHON_DEST}" )

	ELSE (CYTHON_FOUND AND HAVE_PY_LIBS)
		IF(NOT CYTHON_FOUND)
			MESSAGE(STATUS "Cython executable not found.")
		ENDIF(NOT CYTHON_FOUND)
	ENDIF (CYTHON_FOUND AND HAVE_PY_LIBS)

	# Nosetests will find and automatically run python tests.
	IF (PYTHON3INTERP_FOUND)
		FIND_PROGRAM(NOSETESTS_EXECUTABLE nosetests3)
	ELSE ()
		FIND_PROGRAM(NOSETESTS_EXECUTABLE nosetests-2.7)
	ENDIF ()
	IF (NOSETESTS_EXECUTABLE AND CYTHON_FOUND AND HAVE_PY_LIBS)
		SET(HAVE_NOSETESTS 1)
		MESSAGE(STATUS "Using nosetests executable " ${NOSETESTS_EXECUTABLE})
	ENDIF (NOSETESTS_EXECUTABLE AND CYTHON_FOUND AND HAVE_PY_LIBS)
ENDIF(HAVE_PY_INTERP)

# -----------------------------------------------------------------------------

# Glasgow Haskell compiler
FIND_PACKAGE(Stack)
IF (STACK_FOUND)
	ADD_DEFINITIONS(-DHAVE_STACK)
	SET(HAVE_STACK 1)
ENDIF (STACK_FOUND)

FIND_PACKAGE(UnixODBC QUIET)
IF (UnixODBC_FOUND)
	ADD_DEFINITIONS(-DHAVE_SQL_STORAGE)
	SET(HAVE_SQL_STORAGE 1)
	ADD_DEFINITIONS(-DHAVE_ODBC_STORAGE)
	SET(ODBC_FOUND 1)
	SET(ODBC_INCLUDE_DIRS ${UnixODBC_INCLUDE_DIRS})
	SET(ODBC_LIBRARIES ${UnixODBC_LIBRARIES})
	SET(ODBC_DIR_MESSAGE "UnixODBC was found.")
ELSE (UnixODBC_FOUND)
	SET(ODBC_FOUND 0)
	SET(ODBC_DIR_MESSAGE "UnixODBC was not found; ODBC persistence subsystem will not be built.\nTo over-ride, make sure UnixODBC_LIBRARIES and UnixODBC_INCLUDE_DIRS are set.")
ENDIF (UnixODBC_FOUND)
MESSAGE(STATUS "${ODBC_DIR_MESSAGE}")

FIND_PACKAGE(PGSQL REQUIRED)
IF (PGSQL_FOUND)
	ADD_DEFINITIONS(-DHAVE_SQL_STORAGE)
	SET(HAVE_SQL_STORAGE 1)
	ADD_DEFINITIONS(-DHAVE_PGSQL_STORAGE)
	SET(HAVE_PGSQL_STORAGE 1)
	SET(PGSQL_FOUND 1)
	SET(PGSQL_DIR_MESSAGE "PGSQL was found.")
ELSE (PGSQL_FOUND)
	SET(PGSQL_FOUND 0)
	SET(PGSQL_DIR_MESSAGE "PGSQL was not found; PGSQL persistence subsystem will not be built.\nTo over-ride, make sure PGSQL_LIBRARIES and PGSQL_INCLUDE_DIRS are set.")
ENDIF (PGSQL_FOUND)
MESSAGE(STATUS "${PGSQL_DIR_MESSAGE}")

# Optional, currently needed only to hush up DRD in util/Logger.cc
FIND_PACKAGE(VALGRIND)
IF (VALGRIND_FOUND)
	MESSAGE(STATUS "VALGRIND was found.")
	IF (VALGRIND_INCLUDE_DIR)
		MESSAGE(STATUS "VALGRIND devel headers found.")
		ADD_DEFINITIONS(-DHAVE_VALGRIND)
	ELSE (VALGRIND_INCLUDE_DIR)
		MESSAGE(STATUS "VALGRIND devel headers NOT FOUND: needed for thread debugging.")
	ENDIF (VALGRIND_INCLUDE_DIR)
ELSE (VALGRIND_FOUND)
	MESSAGE(STATUS "VALGRIND missing: needed for thread debugging.")
ENDIF (VALGRIND_FOUND)

# ZeroMQ
FIND_PACKAGE(ZMQ 3.2.4)
IF (ZMQPP_FOUND AND ZMQ_LIBRARY)
	ADD_DEFINITIONS(-DHAVE_ZMQ)
	SET(HAVE_ZMQLIB 1)
	SET(ZMQ_DIR_MESSAGE "ZeroMQ was found.")
ELSE (ZMQPP_FOUND AND ZMQ_LIBRARY)
	SET(ZMQ_DIR_MESSAGE "ZeroMQ library or its C++ header file was not found; \nTo over-ride, make sure that the environment variable ZMQ_LIBRARY is set.\nInstallation instructions: http://zeromq.org/intro:get-the-software")
ENDIF (ZMQPP_FOUND AND ZMQ_LIBRARY)
MESSAGE(STATUS "${ZMQ_DIR_MESSAGE}")

# ==========================================================
# Decide what to build, based on the packages found.

IF(HAVE_COGUTIL)
	SET(HAVE_ATOMSPACE 1)
ENDIF(HAVE_COGUTIL)

# Both protobuf and also zmq are needed to build ZMQ API.
IF(HAVE_PROTOBUF AND HAVE_ZMQLIB)
	SET(HAVE_ZMQ 1)
ENDIF(HAVE_PROTOBUF AND HAVE_ZMQLIB)

# ===================================================================
# global includes

# set confdir and datadir
IF (NOT DEFINED CONFDIR)
	SET (CONFDIR "${CMAKE_INSTALL_PREFIX}/etc")
ENDIF (NOT DEFINED CONFDIR)
IF (NOT DEFINED DATADIR)
	SET (DATADIR "${CMAKE_INSTALL_PREFIX}/share/opencog")
ENDIF (NOT DEFINED DATADIR)
ADD_DEFINITIONS(-DCONFDIR=\\"${CONFDIR}\\")
ADD_DEFINITIONS(-DDATADIR=\\"${DATADIR}\\")

# (re?)define MAN_INSTALL_DIR
SET (MAN_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/share/man")

# include custom opencog cmake macros
INCLUDE("${COGUTIL_DATA_DIR}/cmake/OpenCogMacros.cmake")
INCLUDE("${COGUTIL_DATA_DIR}/cmake/OpenCogFunctions.cmake")

# small hack to handle unixes that use "/usr/lib64" instead of "/usr/lib" as the
# default lib path on 64 bit archs
IF (NOT DEFINED LIB_DIR_SUFFIX)
	EXECUTE_PROCESS(COMMAND ${CMAKE_CXX_COMPILER} -print-search-dirs OUTPUT_VARIABLE PRINT_SEARCH_DIRS_OUTPUT)
	STRING(REGEX MATCH "\r?\nlibraries:.*\r?\n" COMPILER_LIB_SEARCH_DIRS ${PRINT_SEARCH_DIRS_OUTPUT})
	IF (NOT ${COMPILER_LIB_SEARCH_DIRS} STREQUAL "")
		STRING(REGEX MATCH "/lib64/:|/lib64:|/lib64\n" HAS_LIB64 ${COMPILER_LIB_SEARCH_DIRS})
		IF (NOT ${HAS_LIB64} STREQUAL "")
			SET(LIB_DIR_SUFFIX "64")
		ENDIF (NOT ${HAS_LIB64} STREQUAL "")
	ENDIF (NOT ${COMPILER_LIB_SEARCH_DIRS} STREQUAL "")
ENDIF (NOT DEFINED LIB_DIR_SUFFIX)

# set default include paths
INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR} ${CMAKE_BINARY_DIR}
	${Boost_INCLUDE_DIRS} ${COGUTIL_INCLUDE_DIR})

# rpath handling
SET(CMAKE_SKIP_BUILD_RPATH	FALSE)
SET(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
SET(CMAKE_INSTALL_RPATH
	"${CMAKE_INSTALL_PREFIX}/lib/opencog"
	"${PYTHON_DEST}")

SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

ADD_SUBDIRECTORY(opencog)
ADD_SUBDIRECTORY(lib)

IF (CXXTEST_FOUND)
	ADD_CUSTOM_TARGET(tests)
	ADD_SUBDIRECTORY(tests EXCLUDE_FROM_ALL)
	IF (CMAKE_BUILD_TYPE STREQUAL "Coverage")
		# doing coverage stuff while running tests if this is the Coverage build
		ADD_CUSTOM_TARGET(test
			# TODO lcov should be found by cmake first
			# TODO set it up so that we can pick to run coverage per test, or
			# combined across all tests (the latter is MUCH faster). Use a define?
			# There is coverage specific stuff in AddCxxTest.cmake now...
			# -
			WORKING_DIRECTORY tests
			COMMAND ${CMAKE_CTEST_COMMAND} --force-new-ctest-process $(ARGS)
			# This script combines the coverage analysis of each test,
			# then creates html in tests/lcov
			# Note: this should now be run separately...
			#COMMAND ${PROJECT_SOURCE_DIR}/scripts/combine_lcov.sh
			COMMENT "Running tests with coverage..."
		)
	ELSE (CMAKE_BUILD_TYPE STREQUAL "Coverage")
		# If this is a build with coverage enabled then test normally
		ADD_CUSTOM_TARGET(test
			DEPENDS tests
			WORKING_DIRECTORY tests
			# COMMAND ${CMAKE_CTEST_COMMAND} --force-new-ctest-process $(ARGS)
			COMMAND ${CMAKE_CTEST_COMMAND} --force-new-ctest-process --output-on-failure $(ARGS)
			COMMENT "Running tests..."
		)
	ENDIF (CMAKE_BUILD_TYPE STREQUAL "Coverage")
	ADD_CUSTOM_TARGET(test_python
		WORKING_DIRECTORY tests/cython
		COMMAND ${CMAKE_CTEST_COMMAND} $(ARGS)
		COMMENT "Running Python and Cython tests..."
	)
	ADD_CUSTOM_TARGET(test_query
		DEPENDS tests/query
		WORKING_DIRECTORY tests/query
		COMMAND ${CMAKE_CTEST_COMMAND} $(ARGS)
		COMMENT "Running pattern matcher tests..."
	)
ENDIF (CXXTEST_FOUND)

ADD_SUBDIRECTORY(examples EXCLUDE_FROM_ALL)

IF (NOT WIN32)
	ADD_CUSTOM_TARGET (examples
		# using CMAKE_BUILD_TOOL results in teh cryptic error message
		# warning: jobserver unavailable: using -j1.  Add `+' to parent make rule.
		# This is because make doesn't know how to pass jobserver args to
		# the submake.  So, instead, just use $(MAKE) (with round parens)
		# -- that will do the right thing.
		# COMMAND ${CMAKE_BUILD_TOOL}
		COMMAND $(MAKE)
		WORKING_DIRECTORY examples
		COMMENT "Building examples"
	)
ENDIF (NOT WIN32)

ADD_CUSTOM_TARGET(cscope
	COMMAND find opencog examples tests -name '*.cc' -o -name '*.h' -o -name '*.cxxtest' -o -name '*.scm' > ${CMAKE_SOURCE_DIR}/cscope.files
	COMMAND cscope -b
	WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
	COMMENT "Generating CScope database"
)

# packaging
SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY "The OpenCog AtomSpace")
SET(CPACK_PACKAGE_NAME "atomspace")
SET(CPACK_PACKAGE_VENDOR "opencog.org")
SET(CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_CURRENT_SOURCE_DIR}/README.md")
SET(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")

SET(CPACK_BINARY_STGZ "OFF")
SET(CPACK_BINARY_TBZ2 "OFF")
SET(CPACK_BINARY_TGZ "OFF")
SET(CPACK_BINARY_TZ "OFF")
SET(CPACK_SOURCE_STGZ "OFF")
SET(CPACK_SOURCE_TBZ2 "ON")
SET(CPACK_SOURCE_TGZ "OFF")
SET(CPACK_SOURCE_TZ "OFF")
SET(CPACK_PACKAGE_CONTACT "opencog@googlegroups.com")
SET(CPACK_GENERATOR "TBZ2;DEB")
SET(CPACK_SOURCE_GENERATOR "TBZ2")
SET(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
SET(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_FILE_NAME}")
SET(CPACK_SOURCE_IGNORE_FILES
	"~$"
	".a$"
	".so$"
	".log$"
	".tar.z$"
	".tar.gz$"
	".tar.bz2$"
	"/Makefile$"
	"/CMakeFiles/"
	"/CMakeCache.txt$"
	"/DartTestfile.txt$"
	"/cmake_install.cmake$"
	"/Testfile.cmake$"
	"/CTestTestfile.cmake$"
	"/CTestTestfile.cmake$"
	"UTest$"
	"UTest.cpp$"
	"/_CPack_Packages/"
	"/CPackConfig.cmake$"
	"/CPackSourceConfig.cmake$"
	"/sniff$"
	"/install_manifest.txt$"
	"${CPACK_PACKAGE_FILE_NAME}"
	"^${PROJECT_SOURCE_DIR}/debian/"
	"^${PROJECT_SOURCE_DIR}/.*spec$"
	"^${PROJECT_SOURCE_DIR}/vendor/"
	"^${PROJECT_SOURCE_DIR}/.bzr/"
	"^${PROJECT_SOURCE_DIR}/.bzrignore$"
	"^${PROJECT_SOURCE_DIR}/.git/"
)

SET(CPACK_PACKAGING_INSTALL_PREFIX "/usr/local")
SET(CPACK_DEBIAN_PACKAGE_DEPENDS
    "guile-2.2 (>= 2.2.2), python (>= 2.7.5), libzmq3 (>= 4.0.4), libboost-date-time1.54.0, libboost-filesystem1.54.0, libboost-program-options1.54.0, libboost-regex1.54.0, libboost-serialization1.54.0, libboost-system1.54.0, libboost-thread1.54.0, libssl1.0.0 (>= 1.0.1), libatlas-base-dev, libpq-dev, cogutil (>= 2.0.2)"
)

SET(CPACK_PACKAGE_INSTALL_DIRECTORY "CMake ${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}")
IF (WIN32)
	# Its "not unix" is cygwin is being used.
	IF (NOT UNIX)
		# 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)
		# backslashes.
		SET(CPACK_PACKAGE_ICON "${CMake_SOURCE_DIR}\\\\lib\\\\opencog.ico")
		SET(CPACK_NSIS_DISPLAY_NAME "${CPACK_PACKAGE_INSTALL_DIRECTORY} The OpenCog Atomspace")
		SET(CPACK_NSIS_HELP_LINK "http:\\\\\\\\www.opencog.org")
		SET(CPACK_NSIS_URL_INFO_ABOUT "http:\\\\\\\\www.opencog.org")
		SET(CPACK_NSIS_CONTACT "opencog@googlegroups.com")
		SET(CPACK_NSIS_MODIFY_PATH ON)
	ELSE(NOT UNIX)
		SET(CPACK_SOURCE_STRIP_FILES "")
	ENDIF(NOT UNIX)
ENDIF(WIN32)

INCLUDE(CPack)

# documentation
FIND_PACKAGE(Doxygen)
ADD_SUBDIRECTORY(doc EXCLUDE_FROM_ALL)

# Show a summary of what we got
SUMMARY_ADD("AtomSpace" "A weighted and typed hypergraph database" HAVE_ATOMSPACE)
SUMMARY_ADD("Doxygen" "Code documentation" DOXYGEN_FOUND)
SUMMARY_ADD("Gearman" "Distributed processing capability" HAVE_GEARMAN)
SUMMARY_ADD("Haskell bindings" "Haskell bindings" HAVE_STACK)
SUMMARY_ADD("Hypertable" "HyperTable for scalable persistance (experimental)" HAVE_HYPERTABLE)
SUMMARY_ADD("Python bindings" "Python (cython) bindings" HAVE_CYTHON)
SUMMARY_ADD("Python tests" "Python bindings nose tests" HAVE_NOSETESTS)
SUMMARY_ADD("Scheme bindings" "Scheme bindings and shell" HAVE_GUILE)
SUMMARY_ADD("SQL ODBC bindings" "Save/Restore of AtomSpace to database via ODBC" ODBC_FOUND)
SUMMARY_ADD("SQL Postgres bindings" "Save/Restore of AtomSpace to Postgres database" PGSQL_FOUND)
SUMMARY_ADD("ZeroMQ persistence" "Save/Restore of AtomSpace to ZeroMQ server" HAVE_ZMQ)
SUMMARY_ADD("Unit tests" "Unit tests" CXXTEST_FOUND)
SUMMARY_SHOW()