1 files changed, 63 insertions, 0 deletions
diff --git a/modules/CheckIncludeFiles.cmake b/modules/CheckIncludeFiles.cmake
new file mode 100644
index 00000000..8d1b0fb3
--- /dev/null
+++ b/modules/CheckIncludeFiles.cmake
@@ -0,0 +1,63 @@
+# - Check if the files can be included
+#
+# CHECK_INCLUDE_FILES(INCLUDE VARIABLE)
+#
+#  INCLUDE  - list of files to include
+#  VARIABLE - variable to return result
+#   
+# If CMAKE_REQUIRED_FLAGS is set then those flags will be passed into the
+# compile of the program
+# additionally to the original cmake module this one uses CMAKE_REQUIRED_INCLUDES
+# where you can specify a directory which will be added to the include path
+
+MACRO(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
+  IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+    SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS )
+#    IF(CMAKE_REQUIRED_INCLUDES)
+#      SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS
+#        "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
+#    ENDIF(CMAKE_REQUIRED_INCLUDES)
+   
+    SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS -DINCLUDE_DIRECTORIES=)
+    FOREACH(_inc_DIR ${CMAKE_REQUIRED_INCLUDES})
+       SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS "${CHECK_INCLUDE_FILES_INCLUDE_DIRS}${_inc_DIR}\;")
+    ENDFOREACH(_inc_DIR ${CMAKE_REQUIRED_INCLUDES})
+    SET(CHECK_INCLUDE_FILES_INCLUDE_DIRS "${CHECK_INCLUDE_FILES_INCLUDE_DIRS} ")
+      
+    SET(CHECK_INCLUDE_FILES_CONTENT "/* */\n")
+    SET(MACRO_CHECK_INCLUDE_FILES_FLAGS ${CMAKE_REQUIRED_FLAGS})
+    FOREACH(FILE ${INCLUDE})
+      SET(CHECK_INCLUDE_FILES_CONTENT
+        "${CHECK_INCLUDE_FILES_CONTENT}#include <${FILE}>\n")
+    ENDFOREACH(FILE)
+    SET(CHECK_INCLUDE_FILES_CONTENT
+      "${CHECK_INCLUDE_FILES_CONTENT}\n\nint main(){return 0;}\n")
+    FILE(WRITE ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFiles.c 
+      "${CHECK_INCLUDE_FILES_CONTENT}")
+
+    MESSAGE(STATUS "Looking for include files ${VARIABLE}")
+    TRY_COMPILE(${VARIABLE}
+      ${CMAKE_BINARY_DIR}
+      ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CheckIncludeFiles.c
+      CMAKE_FLAGS
+#      -DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDE_DIR}
+      -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILES_FLAGS}
+      ${CHECK_INCLUDE_FILES_INCLUDE_DIRS}
+      OUTPUT_VARIABLE OUTPUT)
+    IF(${VARIABLE})
+      MESSAGE(STATUS "Looking for include files ${VARIABLE} - found")
+      SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${VARIABLE}")
+      FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeFiles/CMakeOutput.log 
+        "Determining if files ${INCLUDE} "
+        "exist passed with the following output:\n"
+        "${OUTPUT}\n\n")
+    ELSE(${VARIABLE})
+      MESSAGE(STATUS "Looking for include files ${VARIABLE} - not found.")
+      SET(${VARIABLE} "" CACHE INTERNAL "Have includes ${VARIABLE}")
+      FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log 
+        "Determining if files ${INCLUDE} "
+        "exist failed with the following output:\n"
+        "${OUTPUT}\nSource:\n${CHECK_INCLUDE_FILES_CONTENT}\n")
+    ENDIF(${VARIABLE})
+  ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ENDMACRO(CHECK_INCLUDE_FILES)