CMakeLists.txt

# --------------------------------------------------------------------------
#                   OpenMS -- Open-Source Mass Spectrometry
# --------------------------------------------------------------------------
# Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
# ETH Zurich, and Freie Universitaet Berlin 2002-2023.
#
# This software is released under a three-clause BSD license:
#  * Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#  * Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#  * Neither the name of any author or any participating institution
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
# For a full list of authors, refer to the file AUTHORS.
# --------------------------------------------------------------------------
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
# INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# --------------------------------------------------------------------------
# $Maintainer: Julianus Pfeuffer $
# $Authors: Stephan Aiche, Julianus Pfeuffer $
# --------------------------------------------------------------------------

cmake_minimum_required(VERSION 3.21 FATAL_ERROR) ## if you change this, also update doc/doxygen/install/install-<OS>.doxygen

# Handle default build type
get_property(multiConfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
if(NOT multiConfig AND NOT DEFINED CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build.")
endif()

project("OpenMS_host" LANGUAGES CXX)

# required for cmake < 3.13 if ccache is used
set(CMAKE_AUTOMOC_COMPILER_PREDEFINES OFF)

#------------------------------------------------------------------------------
# General CMake definitions & helper
#------------------------------------------------------------------------------
SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)

#------------------------------------------------------------------------------
## CMake sanity check: sometimes CMAKE_SIZEOF_VOID_P just vanishes when
## updating CMake.
if (NOT CMAKE_SIZEOF_VOID_P)
	message(FATAL_ERROR "'CMAKE_SIZEOF_VOID_P' is undefined. Thus you should"
                      " delete CMakeFiles (the directory) and the"
                      " CMakeCache.txt and rerun CMake again! This is some"
                      " weird CMake bug that seems to appear when updating the"
                      " CMake version.")
endif()

#------------------------------------------------------------------------------
# Enable testing with CTest
enable_testing()

#------------------------------------------------------------------------------
# entries meant to be configured using CMake cache
# - do NOT hardcode them here!
# - edit them within CMakeCache.txt using ccmake or cmake -D VAR=VALUE
#------------------------------------------------------------------------------
# CMAKE_PREFIX_PATH
# CMAKE_BUILD_TYPE
# STL_DEBUG
# ADDRESS_SANITIZER
# OPENMS_COVERAGE
#------------------------------------------------------------------------------
option(MT_ENABLE_OPENMP "Enable OpenMP support" ON)
option(BOOST_USE_STATIC "Use Boost static libraries." ON)
option(HAS_XSERVER "Indicates if an X server is available. If set to Off it will disable certain tests and the doc target." ON)
option(ENABLE_DOCS "Indicates whether documentation should be built." ON)
option(WITH_GUI "Build GUI parts of OpenMS (TOPPView&Co). This requires QtGui." ON)
option(NO_WEBENGINE_WIDGETS "Do not use QtWebengineWidgets. Disables Javascript views in TOPPView." OFF)
option(WITH_HDF5 "Build HDF5 parts of OpenMS." OFF)

if(MSVC)
  option(MT_ENABLE_NESTED_OPENMP "Enable nested parallelism." OFF)
else()
  option(MT_ENABLE_NESTED_OPENMP "Enable nested parallelism." ON)
endif()

#------------------------------------------------------------------------------
# Extend module path with our modules
# (create an empty list if CMAKE_MODULE_PATH does not exist)
if(NOT CMAKE_MODULE_PATH)
	set(CMAKE_MODULE_PATH)
endif()
list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/Modules")
## CMake looks for the NSIS script in the module path.
list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/Windows")

#------------------------------------------------------------------------------
# OpenMS Version Information
#------------------------------------------------------------------------------

set(OPENMS_PACKAGE_VERSION_MAJOR "3")
set(OPENMS_PACKAGE_VERSION_MINOR "1")
set(OPENMS_PACKAGE_VERSION_PATCH "0")
set(OPENMS_PACKAGE_VERSION "${OPENMS_PACKAGE_VERSION_MAJOR}.${OPENMS_PACKAGE_VERSION_MINOR}.${OPENMS_PACKAGE_VERSION_PATCH}")

message(STATUS "Building OpenMS ${OPENMS_PACKAGE_VERSION}")
#------------------------------------------------------------------------------
# retrieve detailed information on the working copy (git)
include(GetGitRevisionDescription)
option(GIT_TRACKING "Embedding of Git version control information into the OpenMS library (and OpenMSInfo tool). Note that if activated, every branch-switch or commit will trigger re-generation of the build system (MakeFiles, VS Solutions etc)." ON)
if (GIT_TRACKING)
  ## will configure an include file
  git_short_info(OPENMS_GIT_SHORT_REFSPEC OPENMS_GIT_SHORT_SHA1 OPENMS_GIT_LC_DATE)
endif()

if(NOT GIT_TRACKING)
  ## allow overwriting of the following variables in case we build release versions
  ## from a source package (e.g. on bioconda)
  if(NOT DEFINED OPENMS_GIT_SHORT_SHA1)
    set(OPENMS_GIT_SHORT_SHA1 "disabled")
  endif()
  if(NOT DEFINED OPENMS_GIT_SHORT_REFSPEC)
    set(OPENMS_GIT_SHORT_REFSPEC "disabled")
  endif()
  if(NOT DEFINED OPENMS_GIT_LC_DATE)
    set(OPENMS_GIT_LC_DATE "1970-01-01")
  endif()
  message(STATUS "  [CMake is not tracking Git commits and branching ('-D GIT_TRACKING=Off')]")
elseif(OPENMS_GIT_SHORT_REFSPEC STREQUAL "GIT-NOTFOUND" OR OPENMS_GIT_SHORT_REFSPEC STREQUAL "HEAD-HASH-NOTFOUND")
  set(OPENMS_GIT_SHORT_SHA1 "exported")
  set(OPENMS_GIT_SHORT_REFSPEC "exported")
  set(OPENMS_GIT_LC_DATE "1970-01-01")
  message(STATUS "  [CMake cannot track Git commits and branching, since Git or the .git folder was not found. ('-D GIT_TRACKING=On')]")
else()
  # everything found, print some status information
  message(STATUS "  - Repository revision ${OPENMS_GIT_SHORT_SHA1}")
  message(STATUS "  - Repository branch ${OPENMS_GIT_SHORT_REFSPEC}")
  message(STATUS "  - Repository last change date ${OPENMS_GIT_LC_DATE}")
  message(STATUS "  [CMake is tracking Git commits and branching ('-D GIT_TRACKING=On')]")
endif()

# Additional versioning information for packaging
# If it is not built from a release branch (or master) it will add the branch name
# and the last change date to everything that can handle strings in the version (e.g. installer filenames)
if(OPENMS_GIT_SHORT_REFSPEC MATCHES "disabled" OR OPENMS_GIT_SHORT_REFSPEC MATCHES "exported")
  string(TIMESTAMP DATE "%Y%m%d")
  set(OPENMS_PACKAGE_VERSION_PRERELEASE_IDENTIFIER "${OPENMS_GIT_SHORT_REFSPEC}-${DATE}")
  set(OPENMS_PACKAGE_VERSION_FULLSTRING "${OPENMS_PACKAGE_VERSION}-pre-${OPENMS_PACKAGE_VERSION_PRERELEASE_IDENTIFIER}")
elseif(OPENMS_GIT_SHORT_REFSPEC MATCHES "release*" OR OPENMS_GIT_SHORT_REFSPEC MATCHES "master")
  set(OPENMS_PACKAGE_VERSION_PRERELEASE_IDENTIFIER "")
  set(OPENMS_PACKAGE_VERSION_FULLSTRING "${OPENMS_PACKAGE_VERSION}")
else()
  string(REPLACE "/" "-" OPENMS_GIT_SHORT_REFSPEC_REPLACED ${OPENMS_GIT_SHORT_REFSPEC})
  string(REPLACE "_" "-" OPENMS_GIT_SHORT_REFSPEC_REPLACED_AGAIN ${OPENMS_GIT_SHORT_REFSPEC_REPLACED})
  set(OPENMS_GIT_LC_DATE_LIST "${OPENMS_GIT_LC_DATE}")
  separate_arguments(OPENMS_GIT_LC_DATE_LIST)
  list(GET OPENMS_GIT_LC_DATE_LIST 0 OPENMS_GIT_LC_DATE_ONLY)
  set(OPENMS_PACKAGE_VERSION_PRERELEASE_IDENTIFIER "${OPENMS_GIT_SHORT_REFSPEC_REPLACED_AGAIN}-${OPENMS_GIT_LC_DATE_ONLY}")
  set(OPENMS_PACKAGE_VERSION_FULLSTRING "${OPENMS_PACKAGE_VERSION}-pre-${OPENMS_PACKAGE_VERSION_PRERELEASE_IDENTIFIER}")
endif()



#------------------------------------------------------------------------------
# Unsupported systems
#------------------------------------------------------------------------------
if (MINGW OR MSYS)
  message(FATAL_ERROR "MSYS and/or MinGW are not supported! Please use a Visual Studio environment! See Windows build instructions for further information!")
endif()

#------------------------------------------------------------------------------
# Setup CMAKE_PREFIX_PATH for finding external libs (contrib or system)
#------------------------------------------------------------------------------
include(cmake/setup_lib_find_paths.cmake)

#------------------------------------------------------------------------------
# All the multi-threading stuff (OpenMP)
#------------------------------------------------------------------------------
include(cmake/multithreading.cmake)

#------------------------------------------------------------------------------
# Check architecture 32bit vs. 64bit
#------------------------------------------------------------------------------

if (CMAKE_SIZEOF_VOID_P MATCHES "8")
	set(OPENMS_64BIT_ARCHITECTURE 1 CACHE INTERNAL "Architecture-bits")
	message(STATUS "Architecture: 64 bit")
else()
	set(OPENMS_64BIT_ARCHITECTURE 0 CACHE INTERNAL "Architecture-bits")
	message(STATUS "Architecture: 32 bit")
endif()

# Force build type into the cache (needs to be set beforehand)
set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." FORCE)

#------------------------------------------------------------------------------
# Project specific compiler flags
#------------------------------------------------------------------------------
# Fill this with compile flags that external projects should use as well
# for OpenMS internal flags (not promoted to external compiler flags) append to CMAKE_CXX_FLAGS
# see OpenMS/cmake/OpenMSConfig.cmake.in to see how its configured and used (i.e. as OPENMS_ADDCXX_FLAGS)
set(CF_OPENMS_ADDCXX_FLAGS)
include(cmake/compiler_flags.cmake)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CF_OPENMS_ADDCXX_FLAGS}")

# Visibility settings
if (NOT CMAKE_CXX_VISIBILITY_PRESET)
  set(CMAKE_CXX_VISIBILITY_PRESET "hidden")
  cmake_policy(SET CMP0063 NEW)
endif()
if (CMAKE_VISIBILITY_INLINES_HIDDEN)
  set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
endif()

#------------------------------------------------------------------------------
# Enable STL debug mode (GCC only)
#------------------------------------------------------------------------------
option(STL_DEBUG "[GCC only] Enable STL-DEBUG mode (very slow)." OFF)
if(STL_DEBUG)
  include(cmake/stl_debug.cmake)
endif()

#------------------------------------------------------------------------------
# Add options for link time optimizations (LTO) aka interprocedural optimization
#------------------------------------------------------------------------------
option(ENABLE_IPO
	"Enable interprocedural optimizations (LTO)" OFF)
if(ENABLE_IPO)
	include(CheckIPOSupported)
	check_ipo_supported(RESULT result OUTPUT output)
	if(result)
		set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
	else()
		message(SEND_ERROR "IPO/LTO is not supported: ${output}")
	endif()
endif()

#------------------------------------------------------------------------------
# Enable clang compile time profiling
#------------------------------------------------------------------------------
option(CLANG_TIME_TRACE "[Clang 9+ only] Enable clang compile time profiling." OFF)
if(CLANG_TIME_TRACE)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftime-trace")
endif()


#------------------------------------------------------------------------------
# Enable Coverage
#------------------------------------------------------------------------------
option(OPENMS_COVERAGE "[Clang/GCC only] Enable Coverage testing with gcov/lcov. Requires the Debug build type,
 is slower and uses a lot of disk space (>40GB). Enables the target OpenMS_coverage to generate
 a coverage report in html format." OFF)
if(OPENMS_COVERAGE)
  include(cmake/Coverage.cmake)
endif()

#------------------------------------------------------------------------------
# Enable usage statistics
#------------------------------------------------------------------------------
option(ENABLE_UPDATE_CHECK "Enable update check." ON)
if(ENABLE_UPDATE_CHECK)
  message(STATUS "Collection of usage statistics and update notifications enabled.")
  message(STATUS "  If you don't want this information to be transmitted to our update sever, you can:")
  message(STATUS "    - Switch the build variable ENABLE_UPDATE_CHECK to OFF to remove the functionality at build time.")
  message(STATUS "    - Set the environment variable OPENMS_DISABLE_UPDATE_CHECK to disable the functionality at runtime.")
endif()

#------------------------------------------------------------------------------
# we build shared libraries
set(BUILD_SHARED_LIBS true)

#------------------------------------------------------------------------------
# Host directory for referencing from subprojects
set(OPENMS_HOST_DIRECTORY "${PROJECT_SOURCE_DIR}")
set(OPENMS_HOST_BINARY_DIRECTORY "${PROJECT_BINARY_DIR}")

# The additional / is important to remove the last character from the path.
# Note that it does not matter if the OS uses / or \, because we are only
# saving the path size.
string(LENGTH "${PROJECT_SOURCE_DIR}/" CF_SOURCE_PATH_SIZE)
string(LENGTH "${PROJECT_BINARY_DIR}/" BINARY_PATH_SIZE)
# Since the path's length is used to cut away a path, and OPENMS_FILENAME might be used in configured files in the build tree
# , taking the convervative approach here, to make sure we do not cut away too much, no matter if origin is source or build tree
if (BINARY_PATH_SIZE LESS CF_SOURCE_PATH_SIZE)
  set(CF_SOURCE_PATH_SIZE ${BINARY_PATH_SIZE})
endif()

#------------------------------------------------------------------------------
# CMake Utitlities
#------------------------------------------------------------------------------
# include some OpenMS specific macros
include (${PROJECT_SOURCE_DIR}/cmake/build_system_macros.cmake)
# .. and some to ease the installation process
include (${PROJECT_SOURCE_DIR}/cmake/install_macros.cmake)
# .. and some to ease preparing the documentation builds
include (${PROJECT_SOURCE_DIR}/cmake/doc_macros.cmake)
# .. and some to ease the installation process
include (${PROJECT_SOURCE_DIR}/cmake/add_library_macros.cmake)
# .. and some to ease the export process
include (${PROJECT_SOURCE_DIR}/cmake/export_macros.cmake)


#------------------------------------------------------------------------------
# Initialize package building environment
set(VALID_PACKAGE_TYPES "none" # the classical build type make/make install
                        "rpm"  # rpm package
                        "deb"  # deb package
                        "dmg"  # a drag&drop dmg package for macOS
                        "pkg"  # a productbuild installer for macOS
                        "nsis") # an NSIS installer for Windows

set(PACKAGE_TYPE "none" CACHE STRING "Package type (internal): ${VALID_PACKAGE_TYPES}")
message(STATUS "Package type is '${PACKAGE_TYPE}'")
is_valid_package(${PACKAGE_TYPE})

## Warn here because you need the signing identity before the app bundles are defined in the
## src subfolder
if("${PACKAGE_TYPE}" STREQUAL "dmg" OR "${PACKAGE_TYPE}" STREQUAL "pkg")
  if (NOT DEFINED SIGNING_IDENTITY OR "${SIGNING_IDENTITY}" STREQUAL "" OR NOT DEFINED SIGNING_EMAIL OR "${SIGNING_EMAIL}" STREQUAL "")
    message(WARNING "Trying to create macOS package/image without SIGNING_IDENTITY and SIGNING_EMAIL being set. "
                    "This disables notarization and might lead to problems with macOS' Gatekeeper on target machines.")
  else()
    ## CPack has a special variable for the identity
    set(CPACK_BUNDLE_APPLE_CERT_APP "${SIGNING_IDENTITY}")
  endif()
endif()

#------------------------------------------------------------------------------
# Output directories
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${OPENMS_HOST_BINARY_DIRECTORY}/lib")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${OPENMS_HOST_BINARY_DIRECTORY}/bin")
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${OPENMS_HOST_BINARY_DIRECTORY}/lib")
# Some alternative variable names for internal use
set(OPENMS_BINARY_DIR "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
set(OPENMS_SHARE_DIR "${PROJECT_SOURCE_DIR}/share/OpenMS")
set(OPENMS_WIN32_DLL_DIRECTORY "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")

#------------------------------------------------------------------------------
# define installation subdirectories to allow for custom installations
# note that all those directories are below CMAKE_INSTALL_PREFIX
set(INSTALL_BIN_DIR bin CACHE PATH "Installation directory for executables")
set(INSTALL_SHARE_DIR share/OpenMS CACHE PATH "Installation directory for shared data")
set(INSTALL_DOC_DIR share/doc CACHE PATH "Installation directory for documentation")
set(INSTALL_INCLUDE_DIR include CACHE PATH "Installation directory for header files")

if(WIN32)
  set(DEF_INSTALL_CMAKE_DIR CMake)
  set(DEF_INSTALL_LIB_DIR bin)
else()
  set(DEF_INSTALL_CMAKE_DIR lib/cmake/OpenMS)
  set(DEF_INSTALL_LIB_DIR lib)
endif()

set(INSTALL_CMAKE_DIR ${DEF_INSTALL_CMAKE_DIR} CACHE PATH "Installation directory for CMake files")
set(INSTALL_LIB_DIR ${DEF_INSTALL_LIB_DIR} CACHE PATH "Installation directory for libraries")
set(INSTALL_PLUGIN_SUBDIR plugins CACHE PATH "Installation subdirectory under the lib dir for QT plugins")
set(INSTALL_PLUGIN_DIR ${INSTALL_LIB_DIR}/${INSTALL_PLUGIN_SUBDIR})
file(RELATIVE_PATH INSTALL_LIB_PATH_REL_TO_BIN /${INSTALL_BIN_DIR} /${INSTALL_LIB_DIR})
set(QT_PLUGIN_PATH_REL_TO_BIN ${INSTALL_LIB_PATH_REL_TO_BIN}/${INSTALL_PLUGIN_SUBDIR})


if(UNIX)
	# use, i.e. don't skip the full RPATH for the build tree
	if(NOT DEFINED CMAKE_SKIP_BUILD_RPATH)
	  SET(CMAKE_SKIP_BUILD_RPATH FALSE)
  endif()

  if(NOT DEFINED CMAKE_MACOSX_RPATH)
    SET(CMAKE_MACOSX_RPATH TRUE) # should be CMake default
  endif()

	# usually when building, don't use the install RPATH already
	# (but later on when installing)
	if(NOT DEFINED CMAKE_BUILD_WITH_INSTALL_RPATH)
		if (ENABLE_PREPARE_KNIME_PACKAGE)
			# Since we rely on copying instead of "installing" for KNIME packaging
			# we need to do it during building already.
			# In this case, make sure that e.g. Qt is in a system path if you want to test it locally.
			
			# bakes in "@executable_path/../lib" for all targets
			SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
			
			# makes sure that our libs are built in a way that their install names are:
			# @rpath/libOpenMS.dylib
			# such that when executables link to it, they can look it up via rpath above
			SET(CMAKE_BUILD_WITH_INSTALL_NAME_DIR TRUE)
		else()
			SET(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
			SET(CMAKE_BUILD_WITH_INSTALL_NAME_DIR FALSE)
		endif()
  endif()
  
  # if e.g. Qt is already built with RPATH, our libs will have @rpath/QtCore as dependency.
  # We need to include all link directories that should be specified by the
  # dependency target to our RPATH as well.
  if (APPLE AND NOT "${PACKAGE_TYPE}" STREQUAL "pkg" AND NOT DEFINED CMAKE_INSTALL_RPATH_USE_LINK_PATH)
    SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
  endif()
  
  #if(NOT DEFINED CMAKE_INSTALL_NAME_DIR AND APPLE)
  #  SET(CMAKE_INSTALL_NAME_DIR "$<INSTALL_PREFIX>/${INSTALL_LIB_DIR}")
  #endif()
  
  # our default RPATH to be added when installing. Can be changed per-target later, e.g. in app bundles
  if(NOT DEFINED CMAKE_INSTALL_RPATH)
    if (APPLE)
      if(NOT "${PACKAGE_TYPE}" STREQUAL "pkg")
        # currently our fix_dependencies.rb script used e.g. for dmg installer,
				# requires our lib dir to be present in the RPATHS
        # so it can find libOpenMS for one of our executables, even if it is linked as @rpath/libOpenMS.
        # Disadvantage: even on the target machine, they will have the build folder baked in.
        # Alternative: copy all our libs first so they do not need to be found.
        SET(CMAKE_INSTALL_RPATH "@executable_path/${INSTALL_LIB_PATH_REL_TO_BIN}/;${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
      else()
        SET(CMAKE_INSTALL_RPATH "@executable_path/${INSTALL_LIB_PATH_REL_TO_BIN}/")
      endif()
    else() # linux and variants
      SET(CMAKE_INSTALL_RPATH "$ORIGIN/${INSTALL_LIB_PATH_REL_TO_BIN}/")
    endif()
	endif()
endif()

#------------------------------------------------------------------------------
# lib naming when building with msvc & convenience location of build.bat
# TODO only for msvc or generally on Windows?
if (MSVC)
	## use OpenMSd.dll etc. in debug mode
    if(NOT DEFINED CMAKE_DEBUG_POSTFIX)
        set(CMAKE_DEBUG_POSTFIX "d")
    endif()
    if(NOT ("${PROJECT_SOURCE_DIR}" STREQUAL "${PROJECT_BINARY_DIR}"))
        file(COPY "${PROJECT_SOURCE_DIR}/tools/build.bat" DESTINATION "${PROJECT_BINARY_DIR}")
    endif()
endif()


# Find core dependencies here, so all projects have access to the same variables and
# do not have to re-search for the core components

include(cmake/cmake_findExternalLibs.cmake)

#------------------------------------------------------------------------------
# find the Doxygen (required by /doc and /src/OpenMS)
find_package(Doxygen) ## defines 'DOXYGEN_HAVE_DOT', 'DOXYGEN_VERSION' etc


#------------------------------------------------------------------------------
# The actual OpenMS code (headers and source files)
#------------------------------------------------------------------------------
add_subdirectory(src)

#------------------------------------------------------------------------------
# Documentation
#------------------------------------------------------------------------------
add_subdirectory(doc)

#------------------------------------------------------------------------------
# GKN Package building
#------------------------------------------------------------------------------
# We will use this path for the KNIME packages and the installers
set(SEARCH_ENGINES_DIRECTORY "" CACHE PATH "The location where thirdparty search engines (Comet, MSGF+, ...) are located. This directory should have the same structure as the search engine repository at https://github.com/OpenMS/THIRDPARTY after flattening for your platform.")

set(ENABLE_PREPARE_KNIME_PACKAGE OFF CACHE BOOL "If enabled, targets to prepare KNIME packages will be generated. Main target will be 'prepare_knime_package'.
 Note, this will build all binaries with install RPATHs already in the build folder, so they may not be relocatable anymore. Only enable if needed.")
if (ENABLE_PREPARE_KNIME_PACKAGE)
	include(${OPENMS_HOST_DIRECTORY}/cmake/knime_package_support.cmake)
endif()

#------------------------------------------------------------------------------
# CWL generation (updates openms/workflow/cwl/*.cwl files for all TOPP tools)
#------------------------------------------------------------------------------
include(${OPENMS_HOST_DIRECTORY}/cmake/cwl_generation.cmake)

#------------------------------------------------------------------------------
# Handle export of targets and install them
openms_export_targets()
install_export_targets()

#------------------------------------------------------------------------------
# Installation and packaging:
#------------------------------------------------------------------------------


# packaging routines:
if(NOT "${PACKAGE_TYPE}" STREQUAL "none")
  include(cmake/package_general.cmake)
  if("${PACKAGE_TYPE}" STREQUAL "dmg") # .. macOS dmg
    include(cmake/package_dragndrop_dmg.cmake)
  elseif("${PACKAGE_TYPE}" STREQUAL "pkg") # .. macOS pkg
    include(cmake/package_mac_productbuild.cmake)
  elseif("${PACKAGE_TYPE}" STREQUAL "rpm") # .. rpms
    include(cmake/package_rpm.cmake)
  elseif("${PACKAGE_TYPE}" STREQUAL "deb") # .. debs
    include(cmake/package_deb.cmake)
  elseif("${PACKAGE_TYPE}" STREQUAL "nsis") # .. Windows nsis
    # For now we use the old NSIS script AS IS
    # i.e. although CMake runs make install etc. NSIS
    # will use everything from the usual build folder like before.
    # TODO automate more and let CMake generate install commands
    # in the script. Unfortunately we have a lot of specific code in the script.
    include(cmake/package_nsis.cmake)
  endif()
  include(CPack)
  include(cmake/package_components.cmake)
endif()

#------------------------------------------------------------------------------
# Some final messages for the users
#------------------------------------------------------------------------------
include(cmake/messages.cmake)

message(STATUS "")
message(STATUS "-----------------------------------------------------------------")
message(STATUS "")
message(STATUS "You have successfully configured OpenMS.")
message(STATUS "")
if (MSVC)
  message(STATUS "Execute the 'targets' project to see prominent targets!")
  message(STATUS "For faster loading see the individual solution files located in")
  message(STATUS "the src/ and doc/ folder and their subfolders")
  message(STATUS "  e.g., src/openms/OpenMS.sln")
  message(STATUS "for the solution containing the OpenMS library.")
else()
  message(STATUS "For a full list of make targets execute:")
  message(STATUS "'make targets'")
endif()
message(STATUS "")
message(STATUS "-----------------------------------------------------------------")
message(STATUS "")