[u/mrichter/AliRoot.git] / Vc / cmake / CheckCXXCompilerFlag.cmake

# - Check whether the CXX compiler supports a given flag.
# 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.

#=============================================================================
# Copyright 2006-2009 Kitware, Inc.
# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
# Copyright 2011-2013 Matthias Kretz <kretz@kde.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#  * Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
#
#  * Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
#  * The names of Kitware, Inc., the Insight Consortium, or the names of
#    any consortium members, or of any contributors, may not be used to
#    endorse or promote products derived from this software without
#    specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#=============================================================================

INCLUDE(CheckCXXSourceCompiles)

MACRO (CHECK_CXX_COMPILER_FLAG _FLAG _RESULT)
   SET(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
   SET(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}")
   if(${ARGC} GREATER 2)
      SET(TEST_SOURCE "${ARGV2}")
   else()
      SET(TEST_SOURCE "int main() { return 0;}")
   endif()
   CHECK_CXX_SOURCE_COMPILES("${TEST_SOURCE}" ${_RESULT}
     # Some compilers do not fail with a bad flag
     FAIL_REGEX "error: bad value (.*) for .* switch"       # GNU
     FAIL_REGEX "argument unused during compilation"        # clang
     FAIL_REGEX "is valid for .* but not for C\\\\+\\\\+"   # GNU
     FAIL_REGEX "unrecognized .*option"                     # GNU
     FAIL_REGEX "ignored for target"                        # GNU
     FAIL_REGEX "ignoring unknown option"                   # MSVC
     FAIL_REGEX "[Uu]nknown option"                         # HP
     FAIL_REGEX "[Ww]arning: [Oo]ption"                     # SunPro
     FAIL_REGEX "command option .* is not recognized"       # XL
     FAIL_REGEX "WARNING: unknown flag:"                    # Open64
     FAIL_REGEX " #10159: "                                 # ICC
     )
   SET (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}")
ENDMACRO (CHECK_CXX_COMPILER_FLAG)
Commit	Line	Data
f22341db	1	# - Check whether the CXX compiler supports a given flag.
	2	# CHECK_CXX_COMPILER_FLAG(<flag> <var>)
	3	# <flag> - the compiler flag
	4	# <var> - variable to store the result
	5	# This internally calls the check_cxx_source_compiles macro. See help
	6	# for CheckCXXSourceCompiles for a listing of variables that can
	7	# modify the build.
	8
	9	#=============================================================================
	10	# Copyright 2006-2009 Kitware, Inc.
	11	# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
c017a39f	12	# Copyright 2011-2013 Matthias Kretz <kretz@kde.org>
f22341db	13	#
c017a39f	14	# Redistribution and use in source and binary forms, with or without
	15	# modification, are permitted provided that the following conditions are
	16	# met:
f22341db	17	#
c017a39f	18	# * Redistributions of source code must retain the above copyright notice,
	19	# this list of conditions and the following disclaimer.
	20	#
	21	# * Redistributions in binary form must reproduce the above copyright notice,
	22	# this list of conditions and the following disclaimer in the documentation
	23	# and/or other materials provided with the distribution.
	24	#
	25	# * The names of Kitware, Inc., the Insight Consortium, or the names of
	26	# any consortium members, or of any contributors, may not be used to
	27	# endorse or promote products derived from this software without
	28	# specific prior written permission.
	29	#
	30	# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
	31	# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	32	# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	33	# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
	34	# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	35	# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	36	# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
	37	# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	38	# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	39	# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
f22341db	40	#=============================================================================
f22341db	41
	42	INCLUDE(CheckCXXSourceCompiles)
	43
	44	MACRO (CHECK_CXX_COMPILER_FLAG _FLAG _RESULT)
	45	SET(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
	46	SET(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}")
c017a39f	47	if(${ARGC} GREATER 2)
	48	SET(TEST_SOURCE "${ARGV2}")
	49	else()
	50	SET(TEST_SOURCE "int main() { return 0;}")
	51	endif()
	52	CHECK_CXX_SOURCE_COMPILES("${TEST_SOURCE}" ${_RESULT}
f22341db	53	# Some compilers do not fail with a bad flag
23a11150	54	FAIL_REGEX "error: bad value (.) for . switch" # GNU
f22341db	55	FAIL_REGEX "argument unused during compilation" # clang
	56	FAIL_REGEX "is valid for .* but not for C\\\\+\\\\+" # GNU
	57	FAIL_REGEX "unrecognized .*option" # GNU
c017a39f	58	FAIL_REGEX "ignored for target" # GNU
f22341db	59	FAIL_REGEX "ignoring unknown option" # MSVC
	60	FAIL_REGEX "[Uu]nknown option" # HP
	61	FAIL_REGEX "[Ww]arning: [Oo]ption" # SunPro
	62	FAIL_REGEX "command option .* is not recognized" # XL
	63	FAIL_REGEX "WARNING: unknown flag:" # Open64
	64	FAIL_REGEX " #10159: " # ICC
	65	)
	66	SET (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}")
	67	ENDMACRO (CHECK_CXX_COMPILER_FLAG)
	68