CMake/Modules/TestForANSIForScope.cmake

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# - Check for ANSI for scope support
# Check if the compiler restricts the scope of variables declared in a for-init-statement to the loop body.
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# CMAKE_NO_ANSI_FOR_SCOPE - holds result
#
#=============================================================================
# Copyright 2002-2009 Kitware, Inc.
#
# 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.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
if("CMAKE_ANSI_FOR_SCOPE" MATCHES "^CMAKE_ANSI_FOR_SCOPE$")
message(STATUS "Check for ANSI scope")
try_compile(CMAKE_ANSI_FOR_SCOPE ${CMAKE_BINARY_DIR}
${CMAKE_ROOT}/Modules/TestForAnsiForScope.cxx
OUTPUT_VARIABLE OUTPUT)
if (CMAKE_ANSI_FOR_SCOPE)
message(STATUS "Check for ANSI scope - found")
set (CMAKE_NO_ANSI_FOR_SCOPE 0 CACHE INTERNAL
"Does the compiler support ansi for scope.")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the CXX compiler understands ansi for scopes passed with "
"the following output:\n${OUTPUT}\n\n")
else ()
message(STATUS "Check for ANSI scope - not found")
set (CMAKE_NO_ANSI_FOR_SCOPE 1 CACHE INTERNAL
"Does the compiler support ansi for scope.")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if the CXX compiler understands ansi for scopes failed with "
"the following output:\n${OUTPUT}\n\n")
endif ()
endif()
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