| # |
| # 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("${AOM_ROOT}/build/cmake/exports_sources.cmake") |
| |
| # Creates the custom target which handles generation of the symbol export lists. |
| function(setup_exports_target) |
| if(APPLE) |
| set(symbol_file_ext "syms") |
| elseif(WIN32) |
| set(symbol_file_ext "def") |
| else() |
| set(symbol_file_ext "ver") |
| endif() |
| |
| set(aom_sym_file "${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=${XCODE} |
| -DCMAKE_SHARED_LIBRARY_PREFIX="${CMAKE_SHARED_LIBRARY_PREFIX}" |
| -DCONFIG_NAME=$<CONFIG> |
| -DCONFIG_AV1_DECODER=${CONFIG_AV1_DECODER} |
| -DCONFIG_AV1_ENCODER=${CONFIG_AV1_ENCODER} |
| -DCONFIG_INSPECTION=${CONFIG_INSPECTION} |
| -DENABLE_TESTS=${ENABLE_TESTS} |
| -P |
| "${AOM_ROOT}/build/cmake/generate_exports.cmake" |
| SOURCES ${AOM_EXPORTS_SOURCES} |
| DEPENDS ${AOM_EXPORTS_SOURCES} BYPRODUCTS ${aom_sym_file}) |
| |
| # 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 ${aom_sym_file}") |
| elseif(WIN32) |
| if(MSVC) |
| set_property(TARGET aom |
| APPEND_STRING |
| PROPERTY LINK_FLAGS "/DEF:${aom_sym_file}") |
| else() |
| # For MinGW and MSYS compilers, you can use either version scripts or |
| # module definition files. If the latter, it must be supplied as an |
| # "object". |
| set_property(TARGET aom |
| APPEND_STRING |
| PROPERTY LINK_FLAGS "${aom_sym_file}") |
| endif() |
| else() |
| set_property(TARGET aom |
| APPEND_STRING |
| PROPERTY LINK_FLAGS "-Wl,--version-script,${aom_sym_file}") |
| endif() |
| endfunction() |