diff options
Diffstat (limited to 'build/cxx_flags.cmake')
| -rw-r--r-- | build/cxx_flags.cmake | 78 |
1 files changed, 42 insertions, 36 deletions
diff --git a/build/cxx_flags.cmake b/build/cxx_flags.cmake index 1aa6a86..e67137e 100644 --- a/build/cxx_flags.cmake +++ b/build/cxx_flags.cmake @@ -1,10 +1,10 @@ -## Copyright (c) 2016 The WebM project authors. All Rights Reserved. -## -## Use of this source code is governed by a BSD-style license -## that can be found in the LICENSE file in the root of the source -## tree. An additional intellectual property rights grant can be found -## in the file PATENTS. All contributing project authors may -## be found in the AUTHORS file in the root of the source tree. +# Copyright (c) 2016 The WebM project authors. All Rights Reserved. +# +# Use of this source code is governed by a BSD-style license +# that can be found in the LICENSE file in the root of the source +# tree. An additional intellectual property rights grant can be found +# in the file PATENTS. All contributing project authors may +# be found in the AUTHORS file in the root of the source tree. include(CheckCXXCompilerFlag) @@ -14,59 +14,65 @@ set(LIBWEBM_FAILED_CXX_FLAGS) # Checks C++ compiler for support of $cxx_flag. Adds $cxx_flag to # $CMAKE_CXX_FLAGS when the compile test passes. Caches $c_flag in # $LIBWEBM_FAILED_CXX_FLAGS when the test fails. -function (add_cxx_flag_if_supported cxx_flag) +function(add_cxx_flag_if_supported cxx_flag) unset(CXX_FLAG_FOUND CACHE) string(FIND "${CMAKE_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FOUND) unset(CXX_FLAG_FAILED CACHE) string(FIND "${LIBWEBM_FAILED_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FAILED) - if (${CXX_FLAG_FOUND} EQUAL -1 AND ${CXX_FLAG_FAILED} EQUAL -1) + if(${CXX_FLAG_FOUND} EQUAL -1 AND ${CXX_FLAG_FAILED} EQUAL -1) unset(CXX_FLAG_SUPPORTED CACHE) message("Checking CXX compiler flag support for: " ${cxx_flag}) check_cxx_compiler_flag("${cxx_flag}" CXX_FLAG_SUPPORTED) - if (CXX_FLAG_SUPPORTED) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${cxx_flag}" CACHE STRING "" - FORCE) - else () - set(LIBWEBM_FAILED_CXX_FLAGS "${LIBWEBM_FAILED_CXX_FLAGS} ${cxx_flag}" + if(CXX_FLAG_SUPPORTED) + set(CMAKE_CXX_FLAGS + "${CMAKE_CXX_FLAGS} ${cxx_flag}" CACHE STRING "" FORCE) - endif () - endif () -endfunction () + else() + set(LIBWEBM_FAILED_CXX_FLAGS + "${LIBWEBM_FAILED_CXX_FLAGS} ${cxx_flag}" + CACHE STRING "" FORCE) + endif() + endif() +endfunction() # Checks CXX compiler for support of $cxx_flag and terminates generation when # support is not present. -function (require_cxx_flag cxx_flag) +function(require_cxx_flag cxx_flag) unset(CXX_FLAG_FOUND CACHE) string(FIND "${CMAKE_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FOUND) - if (${CXX_FLAG_FOUND} EQUAL -1) + if(${CXX_FLAG_FOUND} EQUAL -1) unset(LIBWEBM_HAVE_CXX_FLAG CACHE) message("Checking CXX compiler flag support for: " ${cxx_flag}) check_cxx_compiler_flag("${cxx_flag}" LIBWEBM_HAVE_CXX_FLAG) - if (NOT LIBWEBM_HAVE_CXX_FLAG) - message(FATAL_ERROR - "${PROJECT_NAME} requires support for CXX flag: ${cxx_flag}.") - endif () - set(CMAKE_CXX_FLAGS "${cxx_flag} ${CMAKE_CXX_FLAGS}" CACHE STRING "" FORCE) - endif () -endfunction () + if(NOT LIBWEBM_HAVE_CXX_FLAG) + message( + FATAL_ERROR + "${PROJECT_NAME} requires support for CXX flag: ${cxx_flag}.") + endif() + set(CMAKE_CXX_FLAGS + "${cxx_flag} ${CMAKE_CXX_FLAGS}" + CACHE STRING "" FORCE) + endif() +endfunction() # Checks only non-MSVC targets for support of $cxx_flag. -function (require_cxx_flag_nomsvc cxx_flag) - if (NOT MSVC) +function(require_cxx_flag_nomsvc cxx_flag) + if(NOT MSVC) require_cxx_flag(${cxx_flag}) - endif () -endfunction () + endif() +endfunction() # Adds $preproc_def to CXX compiler command line (as -D$preproc_def) if not # already present. -function (add_cxx_preproc_definition preproc_def) +function(add_cxx_preproc_definition preproc_def) unset(PREPROC_DEF_FOUND CACHE) string(FIND "${CMAKE_CXX_FLAGS}" "${preproc_def}" PREPROC_DEF_FOUND) - if (${PREPROC_DEF_FOUND} EQUAL -1) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D${preproc_def}" CACHE STRING "" - FORCE) - endif () -endfunction () + if(${PREPROC_DEF_FOUND} EQUAL -1) + set(CMAKE_CXX_FLAGS + "${CMAKE_CXX_FLAGS} -D${preproc_def}" + CACHE STRING "" FORCE) + endif() +endfunction() |