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CMake/Modules/CheckCXXCompilerFlag.cmake

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ENH: two macros to check whether the C/CXX compiler supports a given flag: CHECK_CXX_COMPILER_FLAG("-Wall" COMPILER_SUPPORTS_WALL) Alex
2006-09-19 01:55:22 +04:00
# - Check whether the CXX compiler supports a given flag.
Cleanup generic compiler check macro documentation This commit improves formatting and style of the documentation for the general-purpose compiler check macros: CHECK_C_COMPILER_FLAG CHECK_C_SOURCE_COMPILES CHECK_C_SOURCE_RUNS CHECK_CXX_COMPILER_FLAG CHECK_CXX_SOURCE_COMPILES CHECK_CXX_SOURCE_RUNS This sytle is more consistent with CMake command documentation. It also looks nicer in the generated documentation text files.
2009-09-17 23:28:51 +04:00
# CHECK_CXX_COMPILER_FLAG(<flag> <var>)
# <flag> - the compiler flag
# <var> - variable to store the result
# This internally calls the check_cxx_source_compiles macro. See help
# for CheckCXXSourceCompiles for a listing of variables that can
# modify the build.
ENH: two macros to check whether the C/CXX compiler supports a given flag: CHECK_CXX_COMPILER_FLAG("-Wall" COMPILER_SUPPORTS_WALL) Alex
2006-09-19 01:55:22 +04:00
Convert CMake non-find modules to BSD License This adds copyright/license notification blocks CMake's non-find modules. Most of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
2009-09-28 19:46:51 +04:00
#=============================================================================
BUG: Fix compiler flag test for non-English MSVC (#11336) Approach suggested by John Stark.
2010-11-04 15:49:06 +03:00
# Copyright 2006-2010 Kitware, Inc.
Convert CMake non-find modules to BSD License This adds copyright/license notification blocks CMake's non-find modules. Most of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
2009-09-28 19:46:51 +04:00
# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
Improve checks for Open64 and g++ incompatible flags (#12119)
2012-02-12 13:42:54 +04:00
# Copyright 2011 Matthias Kretz <kretz@kde.org>
ENH: two macros to check whether the C/CXX compiler supports a given flag: CHECK_CXX_COMPILER_FLAG("-Wall" COMPILER_SUPPORTS_WALL) Alex
2006-09-19 01:55:22 +04:00
#
Convert CMake non-find modules to BSD License This adds copyright/license notification blocks CMake's non-find modules. Most of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
2009-09-28 19:46:51 +04:00
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
Modules: Fix spelling 'To distributed' -> 'To distribute'
2010-08-07 04:48:47 +04:00
# (To distribute this file outside of CMake, substitute the full
Convert CMake non-find modules to BSD License This adds copyright/license notification blocks CMake's non-find modules. Most of the modules had no notices at all. Some had notices referring to the BSD license already. This commit normalizes existing notices and adds missing notices.
2009-09-28 19:46:51 +04:00
# License text for the above reference.)
ENH: two macros to check whether the C/CXX compiler supports a given flag: CHECK_CXX_COMPILER_FLAG("-Wall" COMPILER_SUPPORTS_WALL) Alex
2006-09-19 01:55:22 +04:00
INCLUDE(CheckCXXSourceCompiles)
MACRO (CHECK_CXX_COMPILER_FLAG _FLAG _RESULT)
SET(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
SET(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}")
Fix CHECK_(C|CXX)_COMPILER_FLAG for GNU and MSVC These compilers warn and return 0 for unrecognized flags. We fix the compiler flag check macros by looking for a warning in the output. See issue #9516.
2009-09-17 23:32:54 +04:00
CHECK_CXX_SOURCE_COMPILES("int main() { return 0;}" ${_RESULT}
# Some compilers do not fail with a bad flag
Improve checks for Open64 and g++ incompatible flags (#12119)
2012-02-12 13:42:54 +04:00
FAIL_REGEX "command line option .* is valid for .* but not for C\\\\+\\\\+" # GNU
Fix CHECK_(C|CXX)_COMPILER_FLAG for XL and SunPro These compilers warn and return 0 for unrecognized flags. We fix the compiler flag check macros by looking for a warning in the output. We also update the regex for GNU on older Macs. See issue #9516.
2009-09-18 17:49:44 +04:00
FAIL_REGEX "unrecognized .*option" # GNU
Fix CHECK_(C|CXX)_COMPILER_FLAG for Clang (#12394) This compiler warns and returns 0 for unrecognized flags. We fix the compiler flag check macros by looking for a warning in the output.
2011-08-08 20:53:17 +04:00
FAIL_REGEX "unknown .*option" # Clang
Fix CHECK_(C|CXX)_COMPILER_FLAG for GNU and MSVC These compilers warn and return 0 for unrecognized flags. We fix the compiler flag check macros by looking for a warning in the output. See issue #9516.
2009-09-17 23:32:54 +04:00
FAIL_REGEX "ignoring unknown option" # MSVC
BUG: Fix compiler flag test for non-English MSVC (#11336) Approach suggested by John Stark.
2010-11-04 15:49:06 +03:00
FAIL_REGEX "warning D9002" # MSVC, any lang
Check{C,CXX}CompilerFlag: detect ICC error messages Patch provided by Christopher Sean Morrison.
2012-02-24 02:08:04 +04:00
FAIL_REGEX "option .*not supported" # Intel
Fix CHECK_(C|CXX)_COMPILER_FLAG for HP This compiler warns and returns 0 for unrecognized flags. We fix the compiler flag check macros by looking for a warning in the output. See issue #9516.
2009-09-18 01:16:43 +04:00
FAIL_REGEX "[Uu]nknown option" # HP
Fix CHECK_(C|CXX)_COMPILER_FLAG for XL and SunPro These compilers warn and return 0 for unrecognized flags. We fix the compiler flag check macros by looking for a warning in the output. We also update the regex for GNU on older Macs. See issue #9516.
2009-09-18 17:49:44 +04:00
FAIL_REGEX "[Ww]arning: [Oo]ption" # SunPro
FAIL_REGEX "command option .* is not recognized" # XL
Possibly fix configuration test on AIX.
2011-08-23 21:58:42 +04:00
FAIL_REGEX "not supported in this configuration; ignored" # AIX
Look for errors reported by PGI too.
2011-08-24 21:43:04 +04:00
FAIL_REGEX "File with unknown suffix passed to linker" # PGI
Improve checks for Open64 and g++ incompatible flags (#12119)
2012-02-12 13:42:54 +04:00
FAIL_REGEX "WARNING: unknown flag:" # Open64
Fix CHECK_(C|CXX)_COMPILER_FLAG for GNU and MSVC These compilers warn and return 0 for unrecognized flags. We fix the compiler flag check macros by looking for a warning in the output. See issue #9516.
2009-09-17 23:32:54 +04:00
)
ENH: two macros to check whether the C/CXX compiler supports a given flag: CHECK_CXX_COMPILER_FLAG("-Wall" COMPILER_SUPPORTS_WALL) Alex
2006-09-19 01:55:22 +04:00
SET (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}")
ENDMACRO (CHECK_CXX_COMPILER_FLAG)