1 files changed, 64 insertions, 0 deletions
diff --git a/third_party/aom/build/cmake/generate_exports.cmake b/third_party/aom/build/cmake/generate_exports.cmake
new file mode 100644
index 000000000..baa29828b
--- /dev/null
+++ b/third_party/aom/build/cmake/generate_exports.cmake
@@ -0,0 +1,64 @@
+##
+## 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.
+##
+cmake_minimum_required(VERSION 3.5)
+
+set(REQUIRED_ARGS "AOM_ROOT" "AOM_CONFIG_DIR" "AOM_TARGET_SYSTEM" "AOM_SYM_FILE"
+    "CONFIG_AV1_DECODER" "CONFIG_AV1_ENCODER")
+
+foreach (arg ${REQUIRED_ARGS})
+  if ("${${arg}}" STREQUAL "")
+    message(FATAL_ERROR "${arg} must not be empty.")
+  endif ()
+endforeach ()
+
+include("${AOM_ROOT}/build/cmake/exports_sources.cmake")
+
+if ("${AOM_TARGET_SYSTEM}" STREQUAL "Darwin")
+  set(symbol_prefix "_")
+elseif ("${AOM_TARGET_SYSTEM}" MATCHES "Windows\|MSYS" AND AOM_MSVC)
+  set(symbol_prefix "_")
+  file(WRITE "${AOM_SYM_FILE}"
+       "LIBRARY libaom INITINSTANCE TERMINSTANCE\n"
+       "DATA MULTIPLE NONSHARED\n"
+       "EXPORTS\n")
+else ()
+  set(symbol_suffix ";")
+endif ()
+
+set(aom_sym_file "${AOM_SYM_FILE}")
+
+if ("${AOM_TARGET_SYSTEM}" STREQUAL "Darwin")
+  file(REMOVE "${aom_sym_file}")
+elseif ("${AOM_TARGET_SYSTEM}" MATCHES "Windows\|MSYS")
+  file(WRITE "${aom_sym_file}"
+       "LIBRARY libaom INITINSTANCE TERMINSTANCE\n"
+       "DATA MULTIPLE NONSHARED\n"
+       "EXPORTS\n")
+else ()
+  file(WRITE "${aom_sym_file}" "{ global:\n")
+endif ()
+
+foreach (export_file ${AOM_EXPORTS_SOURCES})
+  file(STRINGS "${export_file}" exported_file_data)
+  set(exported_symbols "${exported_symbols} ${exported_file_data};")
+  string(STRIP "${exported_symbols}" exported_symbols)
+endforeach ()
+
+foreach (exported_symbol ${exported_symbols})
+  string(STRIP "${exported_symbol}" exported_symbol)
+  string(REGEX REPLACE "text \|data " "" "exported_symbol" "${exported_symbol}")
+  set(exported_symbol "${symbol_prefix}${exported_symbol}${symbol_suffix}")
+  file(APPEND "${aom_sym_file}" "${exported_symbol}\n")
+endforeach ()
+
+if ("${aom_sym_file}" MATCHES "ver$")
+  file(APPEND "${aom_sym_file}" " };")
+endif ()