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CMakeLists.txt
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CMakeLists.txt
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####################### CMakeLists.txt (libopenshot) #########################
# @brief CMake build file for libopenshot (used to generate Python SWIG bindings)
# @author Jonathan Thomas <jonathan@openshot.org>
#
# @section LICENSE
#
# Copyright (c) 2008-2019 OpenShot Studios, LLC
# <http://www.openshotstudios.com/>. This file is part of
# OpenShot Library (libopenshot), an open-source project dedicated to
# delivering high quality video editing and animation solutions to the
# world. For more information visit <http://www.openshot.org/>.
#
# OpenShot Library (libopenshot) is free software: you can redistribute it
# and/or modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# OpenShot Library (libopenshot) 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
################################################################################
############### SWIG PYTHON BINDINGS ################
find_package(SWIG 3.0 REQUIRED)
include(${SWIG_USE_FILE})
### Enable some legacy SWIG behaviors, in newer CMAKEs
if (POLICY CMP0078)
cmake_policy(SET CMP0078 OLD)
endif()
if (POLICY CMP0086)
cmake_policy(SET CMP0086 OLD)
endif()
find_package(PythonInterp 3)
find_package(PythonLibs 3)
if (NOT PYTHONLIBS_FOUND OR NOT PYTHONINTERP_FOUND)
return()
endif()
### Include Python header files
include_directories(${PYTHON_INCLUDE_PATH})
if (CMAKE_VERSION VERSION_LESS 3.12)
### Include project headers
include_directories(
"${PROJECT_SOURCE_DIR}/src"
"${PROJECT_BINARY_DIR}/src")
endif()
### Enable C++ in SWIG
set_property(SOURCE openshot.i PROPERTY CPLUSPLUS ON)
set_property(SOURCE openshot.i PROPERTY SWIG_MODULE_NAME openshot)
# Set the SWIG_FLAGS from the library target, IFF its
# COMPILE_DEFINITIONS property is set (in practice, always true)
if(CMAKE_VERSION VERSION_GREATER 3.15)
set(_defs
$<REMOVE_DUPLICATES:$<TARGET_PROPERTY:openshot,COMPILE_DEFINITIONS>>)
elseif(CMAKE_VERSION VERSION_GREATER 3.12)
set(_defs $<TARGET_PROPERTY:openshot,COMPILE_DEFINITIONS>)
endif()
if(DEFINED _defs)
set_property(SOURCE openshot.i PROPERTY
COMPILE_DEFINITIONS ${_defs})
else()
get_property(_defs TARGET openshot PROPERTY COMPILE_DEFINITIONS)
foreach(_d ${_defs})
list(APPEND _flags -D${_d})
endforeach()
set_property(SOURCE openshot.i PROPERTY
SWIG_FLAGS ${_flags})
endif()
### Suppress a ton of warnings in the generated SWIG C++ code
set(SWIG_CXX_FLAGS "-Wno-unused-variable -Wno-unused-function \
-Wno-deprecated-copy -Wno-class-memaccess -Wno-cast-function-type \
-Wno-unused-parameter -Wno-catch-value -Wno-sign-compare -Wno-ignored-qualifiers")
separate_arguments(sw_flags UNIX_COMMAND ${SWIG_CXX_FLAGS})
set_property(SOURCE openshot.i PROPERTY GENERATED_COMPILE_OPTIONS ${sw_flags})
### Take include dirs from target
if(CMAKE_VERSION VERSION_GREATER 3.15)
set(_inc $<REMOVE_DUPLICATES:$<TARGET_PROPERTY:openshot,INCLUDE_DIRECTORIES>>)
elseif(CMAKE_VERSION VERSION_GREATER 3.12)
set(_inc $<TARGET_PROPERTY:openshot,INCLUDE_DIRECTORIES>)
endif()
if (DEFINED _inc)
set_property(SOURCE openshot.i PROPERTY INCLUDE_DIRECTORIES ${_inc})
endif()
### Add the SWIG interface file (which defines all the SWIG methods)
if (CMAKE_VERSION VERSION_LESS 3.8.0)
swig_add_module(pyopenshot python openshot.i)
else()
swig_add_library(pyopenshot LANGUAGE python SOURCES openshot.i)
endif()
### Set output name of target
set_target_properties(${SWIG_MODULE_pyopenshot_REAL_NAME} PROPERTIES
PREFIX "_" OUTPUT_NAME "openshot")
### Link the new python wrapper library with libopenshot
target_link_libraries(${SWIG_MODULE_pyopenshot_REAL_NAME} PUBLIC
${PYTHON_LIBRARIES} openshot)
######### INSTALL PATH ########
if (NOT DEFINED PYTHON_MODULE_PATH AND DEFINED $ENV{PYTHON_MODULE_PATH})
set(PYTHON_MODULE_PATH $ENV{PYTHON_MODULE_PATH})
endif()
if (NOT DEFINED PYTHON_MODULE_PATH)
if (WIN32 OR APPLE)
set (PYTHON_MODULE_PATH "python")
endif()
if (UNIX AND NOT APPLE)
### Check if the following Debian-friendly python module path exists
set(PYTHON_MODULE_PATH
"lib/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/dist-packages")
if (NOT EXISTS "${CMAKE_INSTALL_PREFIX}/${PYTHON_MODULE_PATH}")
### Calculate the python module path (using distutils)
execute_process ( COMMAND ${PYTHON_EXECUTABLE} -c "\
from distutils.sysconfig import get_python_lib; \
print( get_python_lib( plat_specific=True, prefix='' ) )"
OUTPUT_VARIABLE PYTHON_MODULE_PATH
OUTPUT_STRIP_TRAILING_WHITESPACE )
endif()
endif()
endif()
message(STATUS "PYTHON_MODULE_PATH: ${CMAKE_INSTALL_PREFIX}/${PYTHON_MODULE_PATH}")
############### INSTALL HEADERS & LIBRARY ################
### Install Python bindings
install(TARGETS ${SWIG_MODULE_pyopenshot_REAL_NAME}
DESTINATION ${PYTHON_MODULE_PATH} )
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/openshot.py
DESTINATION ${PYTHON_MODULE_PATH} )