diff options
Diffstat (limited to 'third_party/aom/build/cmake/compiler_flags.cmake')
| -rw-r--r-- | third_party/aom/build/cmake/compiler_flags.cmake | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/third_party/aom/build/cmake/compiler_flags.cmake b/third_party/aom/build/cmake/compiler_flags.cmake deleted file mode 100644 index 79192c1fa..000000000 --- a/third_party/aom/build/cmake/compiler_flags.cmake +++ /dev/null @@ -1,373 +0,0 @@ -# -# Copyright (c) 2016, 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_COMPILER_FLAGS_CMAKE_) - return() -endif() # AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_ -set(AOM_BUILD_CMAKE_COMPILER_FLAGS_CMAKE_ 1) - -include(CheckCCompilerFlag) -include(CheckCXXCompilerFlag) -include("${AOM_ROOT}/build/cmake/compiler_tests.cmake") - -# Strings used to cache flags. -set(AOM_C_FLAGS) -set(AOM_CXX_FLAGS) -set(AOM_EXE_LINKER_FLAGS) -set(AOM_FAILED_C_FLAGS) -set(AOM_FAILED_CXX_FLAGS) - -# Sets variable named by $out_is_present to YES in the caller's scope when $flag -# is found in the string variable named by $flag_cache. Sets the var to NO -# otherwise. -function(is_flag_present flag_cache flag out_is_present) - string(FIND "${${flag_cache}}" "${flag}" flag_pos) - if(${flag_pos} EQUAL -1) - set(${out_is_present} NO PARENT_SCOPE) - else() - set(${out_is_present} YES PARENT_SCOPE) - endif() -endfunction() - -# Appends $flag to $flags. Ignores scope via use of FORCE with set() call. -function(append_flag flags flag) - string(FIND "${${flags}}" "${flag}" found) - if(${found} EQUAL -1) - set(${flags} "${${flags}} ${flag}" CACHE STRING "" FORCE) - endif() -endfunction() - -# Checks C compiler for support of $c_flag. Adds $c_flag to all -# $CMAKE_C_FLAGS_<CONFIG>s stored in AOM_C_CONFIGS when the compile test passes. -# Caches $c_flag in $AOM_C_FLAGS or $AOM_FAILED_C_FLAGS depending on test -# outcome. -function(add_c_flag_if_supported c_flag) - if(DEBUG_CMAKE_DISABLE_COMPILER_TESTS) - return() - endif() - - is_flag_present(AOM_C_FLAGS "${c_flag}" flag_ok) - is_flag_present(AOM_FAILED_C_FLAGS "${c_flag}" flag_failed) - if(${flag_ok} OR ${flag_failed}) - return() - endif() - - unset(C_FLAG_SUPPORTED CACHE) - message("Checking C compiler flag support for: " ${c_flag}) - check_c_compiler_flag("${c_flag}" C_FLAG_SUPPORTED) - - if(${C_FLAG_SUPPORTED}) - append_flag(AOM_C_FLAGS "${c_flag}") - foreach(config ${AOM_C_CONFIGS}) - unset(C_FLAG_FOUND) - append_flag("${config}" "${c_flag}") - endforeach() - else() - append_flag(AOM_FAILED_C_FLAGS "${c_flag}") - endif() -endfunction() - -# Checks C++ compiler for support of $cxx_flag. Adds $cxx_flag to all -# $CMAKE_CXX_FLAGS_<CONFIG>s stored in AOM_CXX_CONFIGS when the compile test -# passes. Caches $cxx_flag in $AOM_CXX_FLAGS or $AOM_FAILED_CXX_FLAGS depending -# on test outcome. -function(add_cxx_flag_if_supported cxx_flag) - if(DEBUG_CMAKE_DISABLE_COMPILER_TESTS) - return() - endif() - - is_flag_present(AOM_CXX_FLAGS "${cxx_flag}" flag_ok) - is_flag_present(AOM_FAILED_CXX_FLAGS "${cxx_flag}" flag_failed) - if(${flag_ok} OR ${flag_failed}) - return() - endif() - - unset(CXX_FLAG_SUPPORTED CACHE) - message("Checking C++ compiler flag support for: " ${cxx_flag}) - check_cxx_compiler_flag("${cxx_flag}" CXX_FLAG_SUPPORTED) - - if(${CXX_FLAG_SUPPORTED}) - append_flag(AOM_CXX_FLAGS "${cxx_flag}") - foreach(config ${AOM_CXX_CONFIGS}) - unset(CXX_FLAG_FOUND) - append_flag("${config}" "${cxx_flag}") - endforeach() - else() - append_flag(AOM_FAILED_CXX_FLAGS "${cxx_flag}") - endif() -endfunction() - -# Convenience method for adding a flag to both the C and C++ compiler command -# lines. -function(add_compiler_flag_if_supported flag) - add_c_flag_if_supported(${flag}) - add_cxx_flag_if_supported(${flag}) -endfunction() - -# Checks C compiler for support of $c_flag and terminates generation when -# support is not present. -function(require_c_flag c_flag update_c_flags) - if(DEBUG_CMAKE_DISABLE_COMPILER_TESTS) - return() - endif() - - is_flag_present(AOM_C_FLAGS "${c_flag}" flag_ok) - if(${flag_ok}) - return() - endif() - - if(NOT "${AOM_EXE_LINKER_FLAGS}" STREQUAL "") - aom_push_var(CMAKE_EXE_LINKER_FLAGS "${AOM_EXE_LINKER_FLAGS}") - endif() - - unset(HAVE_C_FLAG CACHE) - message("Checking C compiler flag support for: " ${c_flag}) - check_c_compiler_flag("${c_flag}" HAVE_C_FLAG) - if(NOT HAVE_C_FLAG) - message(FATAL_ERROR - "${PROJECT_NAME} requires support for C flag: ${c_flag}.") - endif() - - if(NOT "${AOM_EXE_LINKER_FLAGS}" STREQUAL "") - aom_pop_var(CMAKE_EXE_LINKER_FLAGS) - endif() - - append_flag(AOM_C_FLAGS "${c_flag}") - if(update_c_flags) - foreach(config ${AOM_C_CONFIGS}) - set(${config} "${${config}} ${c_flag}" CACHE STRING "" FORCE) - endforeach() - endif() -endfunction() - -# Checks CXX compiler for support of $cxx_flag and terminates generation when -# support is not present. -function(require_cxx_flag cxx_flag update_cxx_flags) - if(DEBUG_CMAKE_DISABLE_COMPILER_TESTS) - return() - endif() - - is_flag_present(AOM_CXX_FLAGS "${cxx_flag}" flag_ok) - if(${flag_ok}) - return() - endif() - - if(NOT "${AOM_EXE_LINKER_FLAGS}" STREQUAL "") - aom_push_var(CMAKE_EXE_LINKER_FLAGS "${AOM_EXE_LINKER_FLAGS}") - endif() - - unset(HAVE_CXX_FLAG CACHE) - message("Checking C compiler flag support for: " ${cxx_flag}) - check_cxx_compiler_flag("${cxx_flag}" HAVE_CXX_FLAG) - if(NOT HAVE_CXX_FLAG) - message(FATAL_ERROR - "${PROJECT_NAME} requires support for C flag: ${cxx_flag}.") - endif() - - if(NOT "${AOM_EXE_LINKER_FLAGS}" STREQUAL "") - aom_pop_var(CMAKE_EXE_LINKER_FLAGS) - endif() - - append_flag(AOM_CXX_FLAGS "${cxx_flag}") - if(update_cxx_flags) - foreach(config ${AOM_CXX_CONFIGS}) - set(${config} "${${config}} ${cxx_flag}" CACHE STRING "" FORCE) - endforeach() - endif() -endfunction() - -# Checks for support of $flag by both the C and CXX compilers. Terminates -# generation when support is not present in both compilers. -function(require_compiler_flag flag update_cmake_flags) - require_c_flag(${flag} ${update_cmake_flags}) - require_cxx_flag(${flag} ${update_cmake_flags}) -endfunction() - -# Checks only non-MSVC targets for support of $c_flag and terminates generation -# when support is not present. -function(require_c_flag_nomsvc c_flag update_c_flags) - if(NOT MSVC) - require_c_flag(${c_flag} ${update_c_flags}) - endif() -endfunction() - -# Checks only non-MSVC targets for support of $cxx_flag and terminates -# generation when support is not present. -function(require_cxx_flag_nomsvc cxx_flag update_cxx_flags) - if(NOT MSVC) - require_cxx_flag(${cxx_flag} ${update_cxx_flags}) - endif() -endfunction() - -# Checks only non-MSVC targets for support of $flag by both the C and CXX -# compilers. Terminates generation when support is not present in both -# compilers. -function(require_compiler_flag_nomsvc flag update_cmake_flags) - require_c_flag_nomsvc(${flag} ${update_cmake_flags}) - require_cxx_flag_nomsvc(${flag} ${update_cmake_flags}) -endfunction() - -# Adds $preproc_def to C compiler command line (as -D$preproc_def) if not -# already present. -function(add_c_preproc_definition preproc_def) - set(preproc_def "-D${preproc_def}") - is_flag_present(AOM_C_FLAGS "${preproc_def}" flag_cached) - if(${flag_cached}) - return() - endif() - - foreach(config ${AOM_C_CONFIGS}) - set(${config} "${${config}} ${preproc_def}" CACHE STRING "" FORCE) - endforeach() -endfunction() - -# Adds $preproc_def to CXX compiler command line (as -D$preproc_def) if not -# already present. -function(add_cxx_preproc_definition preproc_def) - set(preproc_def "-D${preproc_def}") - is_flag_present(AOM_CXX_FLAGS "${preproc_def}" flag_cached) - if(${flag_cached}) - return() - endif() - - foreach(config ${AOM_CXX_CONFIGS}) - set(${config} "${${config}} ${preproc_def}" CACHE STRING "" FORCE) - endforeach() -endfunction() - -# Adds $preproc_def to C and CXX compiler command line (as -D$preproc_def) if -# not already present. -function(add_preproc_definition preproc_def) - add_c_preproc_definition(${preproc_def}) - add_cxx_preproc_definition(${preproc_def}) -endfunction() - -# Adds $flag to assembler command line. -function(append_as_flag flag) - is_flag_present(AOM_AS_FLAGS "${flag}" flag_cached) - if(${flag_cached}) - return() - endif() - append_flag(AOM_AS_FLAGS "${flag}") -endfunction() - -# Adds $flag to the C compiler command line. -function(append_c_flag flag) - is_flag_present(AOM_C_FLAGS "${flag}" flag_cached) - if(${flag_cached}) - return() - endif() - - foreach(config ${AOM_C_CONFIGS}) - append_flag(${config} "${flag}") - endforeach() -endfunction() - -# Adds $flag to the CXX compiler command line. -function(append_cxx_flag flag) - is_flag_present(AOM_CXX_FLAGS "${flag}" flag_cached) - if(${flag_cached}) - return() - endif() - - foreach(config ${AOM_CXX_CONFIGS}) - append_flag(${config} "${flag}") - endforeach() -endfunction() - -# Adds $flag to the C and CXX compiler command lines. -function(append_compiler_flag flag) - append_c_flag(${flag}) - append_cxx_flag(${flag}) -endfunction() - -# Adds $flag to the executable linker command line when not present. -function(append_exe_linker_flag flag) - is_flag_present(AOM_EXE_LINKER_FLAGS "${flag}" flag_cached) - if(${flag_cached}) - return() - endif() - - append_flag(AOM_EXE_LINKER_FLAGS "${flag}") - foreach(config ${AOM_EXE_LINKER_CONFIGS}) - append_flag(${config} "${flag}") - endforeach() -endfunction() - -# Adds $flag to the link flags for $target. -function(append_link_flag_to_target target flag) - unset(target_link_flags) - get_target_property(target_link_flags ${target} LINK_FLAGS) - - if(target_link_flags) - is_flag_present(target_link_flags "${flag}" flag_found) - if(${flag_found}) - return() - endif() - set(target_link_flags "${target_link_flags} ${flag}") - else() - set(target_link_flags "${flag}") - endif() - - set_target_properties(${target} PROPERTIES LINK_FLAGS ${target_link_flags}) -endfunction() - -# Adds $flag to executable linker flags, and makes sure C/CXX builds still work. -function(require_linker_flag flag) - if(DEBUG_CMAKE_DISABLE_COMPILER_TESTS) - return() - endif() - - append_exe_linker_flag(${flag}) - - unset(c_passed) - aom_check_c_compiles("LINKER_FLAG_C_TEST(${flag})" "" c_passed) - unset(cxx_passed) - aom_check_cxx_compiles("LINKER_FLAG_CXX_TEST(${flag})" "" cxx_passed) - - if(NOT c_passed OR NOT cxx_passed) - message(FATAL_ERROR "Linker flag test for ${flag} failed.") - endif() -endfunction() - -# Appends flags in $AOM_EXTRA_<TYPE>_FLAGS variables to the flags used at build -# time. -function(set_user_flags) - - # Linker flags are handled first because some C/CXX flags require that a - # linker flag is present at link time. - if(AOM_EXTRA_EXE_LINKER_FLAGS) - is_flag_present(AOM_EXE_LINKER_FLAGS "${AOM_EXTRA_EXE_LINKER_FLAGS}" - extra_present) - if(NOT ${extra_present}) - require_linker_flag("${AOM_EXTRA_EXE_LINKER_FLAGS}") - endif() - endif() - if(AOM_EXTRA_AS_FLAGS) - - # TODO(tomfinegan): assembler flag testing would be a good thing to have. - is_flag_present(AOM_AS_FLAGS "${AOM_EXTRA_AS_FLAGS}" extra_present) - if(NOT ${extra_present}) - append_flag(AOM_AS_FLAGS "${AOM_EXTRA_AS_FLAGS}") - endif() - endif() - if(AOM_EXTRA_C_FLAGS) - is_flag_present(AOM_C_FLAGS "${AOM_EXTRA_C_FLAGS}" extra_present) - if(NOT ${extra_present}) - require_c_flag("${AOM_EXTRA_C_FLAGS}" YES) - endif() - endif() - if(AOM_EXTRA_CXX_FLAGS) - is_flag_present(AOM_CXX_FLAGS "${AOM_EXTRA_CXX_FLAGS}" extra_present) - if(NOT ${extra_present}) - require_cxx_flag("${AOM_EXTRA_CXX_FLAGS}" YES) - endif() - endif() -endfunction() |