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#
# Copyright (c) 2017, Alliance for Open Media. All rights reserved
#
# This source code is subject to the terms of the BSD 2 Clause License and the
# Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was
# not distributed with this source code in the LICENSE file, you can obtain it
# at www.aomedia.org/license/software. If the Alliance for Open Media Patent
# License 1.0 was not distributed with this source code in the PATENTS file, you
# can obtain it at www.aomedia.org/license/patent.
#
if(AOM_BUILD_CMAKE_EXPORTS_CMAKE_)
return()
endif() # AOM_BUILD_CMAKE_EXPORTS_CMAKE_
set(AOM_BUILD_CMAKE_EXPORTS_CMAKE_ 1)
include("${AOM_ROOT}/build/cmake/exports_sources.cmake")
# Creates the custom target which handles generation of the symbol export lists.
function(setup_exports_target)
if("${AOM_TARGET_SYSTEM}" STREQUAL "Darwin")
set(symbol_file_ext "syms")
elseif("${AOM_TARGET_SYSTEM}" MATCHES "Windows\|MSYS" AND MSVC)
set(symbol_file_ext "def")
else()
set(symbol_file_ext "ver")
endif()
set(aom_sym_file "${AOM_CONFIG_DIR}/libaom.${symbol_file_ext}")
add_custom_target(generate_exports
COMMAND ${CMAKE_COMMAND} -DAOM_ROOT="${AOM_ROOT}"
-DAOM_CONFIG_DIR="${AOM_CONFIG_DIR}"
-DAOM_TARGET_SYSTEM=${AOM_TARGET_SYSTEM}
-DAOM_SYM_FILE="${aom_sym_file}" -DAOM_MSVC=${MSVC}
-DAOM_XCODE=${XCODE} -DCONFIG_NAME=$<CONFIG>
-DCONFIG_AV1_DECODER=${CONFIG_AV1_DECODER}
-DCONFIG_AV1_ENCODER=${CONFIG_AV1_ENCODER}
-DENABLE_TESTS=${ENABLE_TESTS} -P
"${AOM_ROOT}/build/cmake/generate_exports.cmake"
SOURCES ${AOM_EXPORTS_SOURCES}
DEPENDS ${AOM_EXPORTS_SOURCES})
# Make libaom depend on the exports file, and set flags to pick it up when
# creating the dylib.
add_dependencies(aom generate_exports)
if(APPLE)
set_property(TARGET aom APPEND_STRING
PROPERTY LINK_FLAGS "-exported_symbols_list ${aom_sym_file}")
elseif(WIN32)
if(NOT MSVC)
set_property(TARGET aom APPEND_STRING
PROPERTY LINK_FLAGS "-Wl,--version-script ${aom_sym_file}")
else()
set_property(TARGET aom APPEND_STRING
PROPERTY LINK_FLAGS "/DEF:${aom_sym_file}")
endif()
# TODO(tomfinegan): Sort out the import lib situation and flags for MSVC.
else()
set_property(TARGET aom APPEND_STRING
PROPERTY LINK_FLAGS "-Wl,--version-script,${aom_sym_file}")
endif()
endfunction()
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