1 files changed, 58 insertions, 0 deletions
diff --git a/third_party/aom/build/cmake/pkg_config.cmake b/third_party/aom/build/cmake/pkg_config.cmake
new file mode 100644
index 000000000..64e20214e
--- /dev/null
+++ b/third_party/aom/build/cmake/pkg_config.cmake
@@ -0,0 +1,58 @@
+#
+# 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" "CMAKE_INSTALL_PREFIX"
+    "CMAKE_PROJECT_NAME" "CONFIG_MULTITHREAD" "HAVE_PTHREAD_H")
+
+foreach(arg ${REQUIRED_ARGS})
+  if("${${arg}}" STREQUAL "")
+    message(FATAL_ERROR "${arg} must not be empty.")
+  endif()
+endforeach()
+
+include("${AOM_ROOT}/build/cmake/util.cmake")
+
+extract_version_string("${AOM_CONFIG_DIR}/config/aom_version.h" aom_version)
+
+# Create a version string suitable for comparison using the RPM version compare
+# algorithm: strip out everything after the number.
+string(FIND "${aom_version}" "-" dash_pos)
+if(${dash_pos} EQUAL -1)
+  set(package_version "${aom_version}")
+else()
+  string(SUBSTRING "${aom_version}" 0 ${dash_pos} package_version)
+endif()
+
+# Write pkg-config info.
+set(prefix "${CMAKE_INSTALL_PREFIX}")
+set(pkgconfig_file "${AOM_CONFIG_DIR}/aom.pc")
+string(TOLOWER ${CMAKE_PROJECT_NAME} pkg_name)
+file(WRITE "${pkgconfig_file}" "# libaom pkg-config.\n")
+file(APPEND "${pkgconfig_file}" "prefix=${prefix}\n")
+file(APPEND "${pkgconfig_file}" "exec_prefix=\${prefix}/bin\n")
+file(APPEND "${pkgconfig_file}" "libdir=\${prefix}/lib\n")
+file(APPEND "${pkgconfig_file}" "includedir=\${prefix}/include\n\n")
+file(APPEND "${pkgconfig_file}" "Name: ${pkg_name}\n")
+file(APPEND "${pkgconfig_file}"
+            "Description: AV1 codec library v${aom_version}.\n")
+file(APPEND "${pkgconfig_file}" "Version: ${package_version}\n")
+file(APPEND "${pkgconfig_file}" "Requires:\n")
+file(APPEND "${pkgconfig_file}" "Conflicts:\n")
+if(CONFIG_MULTITHREAD AND HAVE_PTHREAD_H)
+  file(APPEND "${pkgconfig_file}"
+              "Libs: -L\${prefix}/lib -l${pkg_name} -lm -lpthread\n")
+  file(APPEND "${pkgconfig_file}" "Libs.private: -lm -lpthread\n")
+else()
+  file(APPEND "${pkgconfig_file}" "Libs: -L\${prefix}/lib -l${pkg_name} -lm\n")
+  file(APPEND "${pkgconfig_file}" "Libs.private: -lm\n")
+endif()
+file(APPEND "${pkgconfig_file}" "Cflags: -I\${prefix}/include\n")