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-rw-r--r--Modules/TestCXXAcceptsFlag.cmake43
1 files changed, 43 insertions, 0 deletions
diff --git a/Modules/TestCXXAcceptsFlag.cmake b/Modules/TestCXXAcceptsFlag.cmake
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+++ b/Modules/TestCXXAcceptsFlag.cmake
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+# - Test CXX compiler for a flag
+# Check if the CXX compiler accepts a flag
+#
+# Macro CHECK_CXX_ACCEPTS_FLAG(FLAGS VARIABLE) -
+# checks if the function exists
+# FLAGS - the flags to try
+# VARIABLE - variable to store the 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.)
+
+MACRO(CHECK_CXX_ACCEPTS_FLAG FLAGS VARIABLE)
+ IF(NOT DEFINED ${VARIABLE})
+ MESSAGE(STATUS "Checking to see if CXX compiler accepts flag ${FLAGS}")
+ TRY_COMPILE(${VARIABLE}
+ ${CMAKE_BINARY_DIR}
+ ${CMAKE_ROOT}/Modules/DummyCXXFile.cxx
+ CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${FLAGS}
+ OUTPUT_VARIABLE OUTPUT)
+ IF(${VARIABLE})
+ MESSAGE(STATUS "Checking to see if CXX compiler accepts flag ${FLAGS} - yes")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+ "Determining if the CXX compiler accepts the flag ${FLAGS} passed with "
+ "the following output:\n${OUTPUT}\n\n")
+ ELSE(${VARIABLE})
+ MESSAGE(STATUS "Checking to see if CXX compiler accepts flag ${FLAGS} - no")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+ "Determining if the CXX compiler accepts the flag ${FLAGS} failed with "
+ "the following output:\n${OUTPUT}\n\n")
+ ENDIF(${VARIABLE})
+ ENDIF(NOT DEFINED ${VARIABLE})
+ENDMACRO(CHECK_CXX_ACCEPTS_FLAG)