1 files changed, 91 insertions, 0 deletions
diff --git a/Modules/CheckIncludeFileCXX.cmake b/Modules/CheckIncludeFileCXX.cmake
new file mode 100644
index 0000000..fa36a3f
--- /dev/null
+++ b/Modules/CheckIncludeFileCXX.cmake
@@ -0,0 +1,91 @@
+#.rst:
+# CheckIncludeFileCXX
+# -------------------
+#
+# 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()
+      set(CHECK_INCLUDE_FILE_CXX_INCLUDE_DIRS)
+    endif()
+    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)
+    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} ${ARGV2}")
+    endif()
+
+    try_compile(${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 ${CMAKE_CXX_FLAGS_SAVE})
+    endif()
+
+    if(${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()
+      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()
+  endif()
+endmacro()