CMakeLists.txt

############################################################################
# CMakeLists.txt
# Copyright (C) 2019  Belledonne Communications, Grenoble France
#
############################################################################
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public Liscense
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
############################################################################

# Cmake 3.15 is required for swift wrapper compilation, otherwise you have immediate build time errors.
# However, cmake-1.15 swift support is not mature yet.
# For example, creating a swift framework doesn't work with Ninja backend (only Xcode).
# Fortunately, creating a swift shared library works.
# As a result, I had to create my own script to create a framework from a shared library, called make-framework.sh.
# For xcode, create a swift framework directly.

# These two links are interesting:
# https://forums.swift.org/t/announcing-swift-support-in-cmake/24792
# https://github.com/compnerd/swift-cmake-demo



add_custom_command(OUTPUT LinphoneWrapper.swift
	COMMAND ${PYTHON_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/genwrapper.py" "${PROJECT_BINARY_DIR}/coreapi/help/doc/doxygen/xml"
	DEPENDS ${PROJECT_SOURCE_DIR}/tools/genapixml.py
	${PROJECT_SOURCE_DIR}/tools/metadoc.py
	${PROJECT_SOURCE_DIR}/tools/metaname.py
	${PROJECT_SOURCE_DIR}/tools/abstractapi.py
	${PROJECT_BINARY_DIR}/coreapi/help/doc/doxygen/xml/index.xml
	genwrapper.py
	wrapper_impl.mustache
	linphone-doc
)

# When ENABLE_SWIFT_WRAPPER=YES and ENABLE_SWIFT_WRAPPER_COMPILATION=NO, we use the swift file directly, which is recommended.
# Because there is a compatibility problem with Swift Version when installing the framework in the application.
# However, we need the framework to generate documentation by jazzy but not zip it into linphone-sdk (See cmake/IOS/Lipo.cmake).
if (NOT ENABLE_SWIFT_WRAPPER_COMPILATION)
	add_custom_target(linphoneswsource ALL DEPENDS LinphoneWrapper.swift)
	install(FILES "${CMAKE_CURRENT_BINARY_DIR}/LinphoneWrapper.swift"
		DESTINATION "${CMAKE_INSTALL_DATADIR}/linphonesw/")
endif()

if (ENABLE_JAZZY_DOC)
	# Remove everything after the last point in LINPHONE_VERSION (4.5.0 --> 4.5) to create STRIPPED_LINPHONE_VERSION
	string(REGEX REPLACE "\\.[^.]*$" "" STRIPPED_LINPHONE_VERSION ${LINPHONE_VERSION})
	configure_file(${CMAKE_CURRENT_SOURCE_DIR}/README.cmake ${CMAKE_CURRENT_BINARY_DIR}/README)
endif()

if (ENABLE_JAZZY_DOC OR ENABLE_SWIFT_WRAPPER_COMPILATION)
	cmake_minimum_required(VERSION 3.15)
	set(CMAKE_Swift_LANGUAGE_VERSION 4.0)
	enable_language(Swift)

	add_library(linphonesw SHARED
		${CMAKE_CURRENT_BINARY_DIR}/LinphoneWrapper.swift
	)