diff options
Diffstat (limited to 'third_party/aom/build/cmake/util.cmake')
| -rw-r--r-- | third_party/aom/build/cmake/util.cmake | 90 |
1 files changed, 47 insertions, 43 deletions
diff --git a/third_party/aom/build/cmake/util.cmake b/third_party/aom/build/cmake/util.cmake index d6c432229..a0c705691 100644 --- a/third_party/aom/build/cmake/util.cmake +++ b/third_party/aom/build/cmake/util.cmake @@ -1,84 +1,88 @@ -## -## 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 (NOT AOM_BUILD_CMAKE_UTIL_CMAKE_) +# +# 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_UTIL_CMAKE_) + return() +endif() # AOM_BUILD_CMAKE_UTIL_CMAKE_ set(AOM_BUILD_CMAKE_UTIL_CMAKE_ 1) # 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}/${basename}.${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 ${target_name}_dummy_function(void) {}\n") +function(create_dummy_source_file basename extension out_file_path) + set(dummy_source_file "${AOM_CONFIG_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 () +endfunction() # Convenience function for adding a dummy source file to $target_name using # $extension as the file extension. Wraps create_dummy_source_file(). -function (add_dummy_source_file_to_target target_name extension) +function(add_dummy_source_file_to_target target_name extension) create_dummy_source_file("${target_name}" "${extension}" "dummy_source_file") target_sources(${target_name} PRIVATE ${dummy_source_file}) -endfunction () +endfunction() # Sets the value of the variable referenced by $feature to $value, and reports # the change to the user via call to message(WARNING ...). $cause is expected to -# be a configuration variable that conflicts with $feature in some way. -function (change_config_and_warn feature value cause) +# be a configuration variable that conflicts with $feature in some way. This +# function is a noop if $feature is already set to $value. +function(change_config_and_warn feature value cause) + if(${feature} EQUAL ${value}) + return() + endif() set(${feature} ${value} PARENT_SCOPE) - if (${value} EQUAL 1) + if(${value} EQUAL 1) set(verb "Enabled") set(reason "required for") - else () + else() set(verb "Disabled") set(reason "incompatible with") - endif () + endif() set(warning_message "${verb} ${feature}, ${reason} ${cause}.") message(WARNING "--- ${warning_message}") -endfunction () +endfunction() # Extracts the version string from $version_file and returns it to the user via # $version_string_out_var. To achieve this VERSION_STRING_NOSP is located in # $version_file and then everything but the string literal assigned to the -# variable is removed. Quotes and the leading 'v' are stripped from the -# returned string. -function (extract_version_string version_file version_string_out_var) +# variable is removed. Quotes and the leading 'v' are stripped from the returned +# string. +function(extract_version_string version_file version_string_out_var) file(STRINGS "${version_file}" aom_version REGEX "VERSION_STRING_NOSP") - string(REPLACE "#define VERSION_STRING_NOSP " "" aom_version - "${aom_version}") + string(REPLACE "#define VERSION_STRING_NOSP " "" aom_version "${aom_version}") string(REPLACE "\"" "" aom_version "${aom_version}") string(REPLACE " " "" aom_version "${aom_version}") string(FIND "${aom_version}" "v" v_pos) - if (${v_pos} EQUAL 0) + if(${v_pos} EQUAL 0) string(SUBSTRING "${aom_version}" 1 -1 aom_version) - endif () + endif() set("${version_string_out_var}" "${aom_version}" PARENT_SCOPE) -endfunction () +endfunction() # Sets CMake compiler launcher to $launcher_name when $launcher_name is found in # $PATH. Warns user about ignoring build flag $launcher_flag when $launcher_name # is not found in $PATH. -function (set_compiler_launcher launcher_flag launcher_name) +function(set_compiler_launcher launcher_flag launcher_name) find_program(launcher_path "${launcher_name}") - if (launcher_path) + if(launcher_path) set(CMAKE_C_COMPILER_LAUNCHER "${launcher_path}" PARENT_SCOPE) set(CMAKE_CXX_COMPILER_LAUNCHER "${launcher_path}" PARENT_SCOPE) message("--- Using ${launcher_name} as compiler launcher.") - else () + else() message(WARNING - "--- Cannot find ${launcher_name}, ${launcher_flag} ignored.") - endif () -endfunction () - -endif() # AOM_BUILD_CMAKE_UTIL_CMAKE_ + "--- Cannot find ${launcher_name}, ${launcher_flag} ignored.") + endif() +endfunction() |