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-rw-r--r--Modules/CheckIncludeFileCXX.cmake77
1 files changed, 77 insertions, 0 deletions
diff --git a/Modules/CheckIncludeFileCXX.cmake b/Modules/CheckIncludeFileCXX.cmake
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+++ b/Modules/CheckIncludeFileCXX.cmake
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+# - Check if the include file exists.
+# CHECK_INCLUDE_FILE_CXX(INCLUDE VARIABLE)
+#
+# INCLUDE - name of include file
+# VARIABLE - variable to return result
+#
+# An optional third argument is the CFlags to add to the compile line
+# or you can use CMAKE_REQUIRED_FLAGS.
+#
+# The following variables may be set before calling this macro to
+# modify the way the check is run:
+#
+# CMAKE_REQUIRED_FLAGS = string of compile command line flags
+# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
+# CMAKE_REQUIRED_INCLUDES = list of include directories
+#
+
+#=============================================================================
+# 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_INCLUDE_FILE_CXX INCLUDE VARIABLE)
+ IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ IF(CMAKE_REQUIRED_INCLUDES)
+ SET(CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
+ ELSE(CMAKE_REQUIRED_INCLUDES)
+ SET(CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS)
+ ENDIF(CMAKE_REQUIRED_INCLUDES)
+ SET(MACRO_CHECK_INCLUDE_FILE_FLAGS ${CMAKE_REQUIRED_FLAGS})
+ SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
+ CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.cxx.in
+ ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFile.cxx IMMEDIATE)
+ MESSAGE(STATUS "Looking for C++ include ${INCLUDE}")
+ IF(${ARGC} EQUAL 3)
+ SET(CMAKE_CXX_FLAGS_SAVE ${CMAKE_CXX_FLAGS})
+ SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ARGV2}")
+ ENDIF(${ARGC} EQUAL 3)
+
+ TRY_COMPILE(${VARIABLE}
+ ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFile.cxx
+ COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+ CMAKE_FLAGS
+ -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
+ "${CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS}"
+ OUTPUT_VARIABLE OUTPUT)
+
+ IF(${ARGC} EQUAL 3)
+ SET(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS_SAVE})
+ ENDIF(${ARGC} EQUAL 3)
+
+ IF(${VARIABLE})
+ MESSAGE(STATUS "Looking for C++ include ${INCLUDE} - found")
+ SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+ "Determining if the include file ${INCLUDE} "
+ "exists passed with the following output:\n"
+ "${OUTPUT}\n\n")
+ ELSE(${VARIABLE})
+ MESSAGE(STATUS "Looking for C++ include ${INCLUDE} - not found")
+ SET(${VARIABLE} "" CACHE INTERNAL "Have include ${INCLUDE}")
+ FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+ "Determining if the include file ${INCLUDE} "
+ "exists failed with the following output:\n"
+ "${OUTPUT}\n\n")
+ ENDIF(${VARIABLE})
+ ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ENDMACRO(CHECK_INCLUDE_FILE_CXX)