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Update libaom to commit ID 1e227d41f0616de9548a673a83a21ef990b62591

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trav90 2018-10-19 23:05:00 -05:00 • committed by Roy Tam
commit 368651059a
526 changed files with 34535 additions and 15900 deletions
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91
third_party/aom/build/cmake/util.cmake vendored
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@ -13,19 +13,21 @@ if(AOM_BUILD_CMAKE_UTIL_CMAKE_)
endif() # AOM_BUILD_CMAKE_UTIL_CMAKE_
set(AOM_BUILD_CMAKE_UTIL_CMAKE_ 1)
# Directory where generated sources will be written.
set(AOM_GEN_SRC_DIR "${AOM_CONFIG_DIR}/gen_src")
# Creates dummy source file in $AOM_CONFIG_DIR named $basename.$extension and
# returns the full path to the dummy source file via the $out_file_path
# parameter.
function(create_dummy_source_file basename extension out_file_path)
set(dummy_source_file "${AOM_CONFIG_DIR}/${basename}_dummy.${extension}")
macro(create_dummy_source_file basename extension out_file_path)
set(dummy_source_file "${AOM_GEN_SRC_DIR}/${basename}_dummy.${extension}")
file(
WRITE
"${dummy_source_file}" "// Generated file. DO NOT EDIT!\n"
"// ${target_name} needs a ${extension} file to force link language, \n"
"// or to silence a harmless CMake warning: Ignore me.\n"
"void ${target_name}_dummy_function(void) {}\n")
set(${out_file_path} ${dummy_source_file} PARENT_SCOPE)
endfunction()
endmacro()
# Convenience function for adding a dummy source file to $target_name using
# $extension as the file extension. Wraps create_dummy_source_file().
@ -86,3 +88,84 @@ function(set_compiler_launcher launcher_flag launcher_name)
endif()
endfunction()
# Sentinel value used to detect when a variable has been set via the -D argument
# passed to CMake on the command line.
set(cmake_cmdline_helpstring "No help, variable specified on the command line.")
# Wrapper macro for set() that does some book keeping to help with storage of
# build configuration information.
#
# Sets the default value for variable $name when the value of $name has not
# already been set via the CMake command line.
#
# The names of variables defaulted through this macro are added to
# $AOM_CONFIG_VARS to facilitate build logging and diagnostics.
macro(set_aom_detect_var name value type helpstring)
unset(list_index)
list(FIND AOM_DETECT_VARS ${name} list_index)
if(${list_index} EQUAL -1)
list(APPEND AOM_DETECT_VARS ${name})
endif()
# Update the variable only when it does not carry the CMake assigned help
# string for variables specified via the command line.
unset(cache_helpstring)
get_property(cache_helpstring CACHE ${name} PROPERTY HELPSTRING)
if(NOT "${cache_helpstring}" STREQUAL "${cmake_cmdline_helpstring}")
set(${name} ${value} CACHE ${type} "${helpstring}")
mark_as_advanced(${name})
else()
message(
WARNING
"${name} has been set by CMake, but it may be overridden by the build "
"system during environment detection")
endif()
endmacro()
# Wrapper macro for set() that does some book keeping to help with storage of
# build configuration information.
#
# Sets the default value for variable $name when the value of $name has not
# already been set via the CMake command line.
#
# The names of variables defaulted through this macro are added to
# $AOM_CONFIG_VARS to facilitate build logging and diagnostics.
macro(set_aom_config_var name value type helpstring)
unset(list_index)
list(FIND AOM_CONFIG_VARS ${name} list_index)
if(${list_index} EQUAL -1)
list(APPEND AOM_CONFIG_VARS ${name})
endif()
# Update the variable only when it does not carry the CMake assigned help
# string for variables specified via the command line.
unset(cache_helpstring)
get_property(cache_helpstring CACHE ${name} PROPERTY HELPSTRING)
if(NOT "${cache_helpstring}" STREQUAL "${cmake_cmdline_helpstring}")
set(${name} ${value} CACHE ${type} "${helpstring}")
endif()
endmacro()
# Wrapper macro for option() that does some book keeping to help with storage of
# build configuration information.
#
# Sets the default value for variable $name when the value of $name has not
# already been set via the CMake command line.
#
# The names of variables defaulted through this macro are added to
# $AOM_OPTION_VARS to facilitate build logging and diagnostics.
macro(set_aom_option_var name helpstring value)
unset(list_index)
list(FIND AOM_OPTION_VARS ${name} list_index)
if(${list_index} EQUAL -1)
list(APPEND AOM_OPTION_VARS ${name})
endif()
# Update the variable only when it does not carry the CMake assigned help
# string for variables specified via the command line.
unset(cache_helpstring)
get_property(cache_helpstring CACHE ${name} PROPERTY HELPSTRING)
if(NOT "${cache_helpstring}" STREQUAL "${cmake_cmdline_helpstring}")
option(${name} "${helpstring}" ${value})
endif()
endmacro()