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authorAndy Cedilnik <andy.cedilnik@kitware.com>2003-01-01 23:00:49 (GMT)
committerAndy Cedilnik <andy.cedilnik@kitware.com>2003-01-01 23:00:49 (GMT)
commitde00883c41b82cdceb48b37fe3838f5b2911c832 (patch)
tree683eda85b3641c7907fdd8a76c4899cbcea484ee /Modules/CheckIncludeFiles.cmake
parent87143969279deac183544fb35949687ea8871597 (diff)
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Add macro for checking if a swequence of includes can be includes
Diffstat (limited to 'Modules/CheckIncludeFiles.cmake')
-rw-r--r--Modules/CheckIncludeFiles.cmake40
1 files changed, 40 insertions, 0 deletions
diff --git a/Modules/CheckIncludeFiles.cmake b/Modules/CheckIncludeFiles.cmake
new file mode 100644
index 0000000..642fb01
--- /dev/null
+++ b/Modules/CheckIncludeFiles.cmake
@@ -0,0 +1,40 @@
+#
+# Check if the files can be included
+#
+# CHECK_INCLUDE_FILES - macro which checks the include file exists.
+# INCLUDE - list of files to include
+# VARIABLE - variable to return result
+#
+
+MACRO(CHECK_INCLUDE_FILES INCLUDE VARIABLE)
+ IF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ SET(CHECK_INCLUDE_FILES_CONTENT "/* */\n")
+ STRING(ASCII 35 POUND)
+ STRING(ASCII 40 41 PARENTS)
+ FOREACH(FILE ${INCLUDE})
+ SET(CHECK_INCLUDE_FILES_CONTENT
+ "${CHECK_INCLUDE_FILES_CONTENT}${POUND}include <${FILE}>\n")
+ ENDFOREACH(FILE)
+ SET(CHECK_INCLUDE_FILES_CONTENT
+ "${CHECK_INCLUDE_FILES_CONTENT}\n\nvoid main${PARENTS}{}\n")
+ WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFiles.c
+ "${CHECK_INCLUDE_FILES_CONTENT}")
+
+ MESSAGE(STATUS "Looking for set of ${INCLUDE}")
+ TRY_COMPILE(${VARIABLE}
+ ${CMAKE_BINARY_DIR}
+ ${CMAKE_BINARY_DIR}/CMakeTmp/CheckIncludeFiles.c
+ OUTPUT_VARIABLE OUTPUT)
+ IF(${VARIABLE})
+ MESSAGE(STATUS "Looking for set of ${INCLUDE} - found")
+ SET(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
+ ELSE(${VARIABLE})
+ MESSAGE(STATUS "Looking for set of ${INCLUDE} - not found.")
+ SET(${VARIABLE} "" CACHE INTERNAL "Have include ${INCLUDE}")
+ WRITE_FILE(${CMAKE_BINARY_DIR}/CMakeError.log
+ "Determining if files ${INCLUDE} "
+ "exist failed with the following output:\n"
+ "${OUTPUT}\n" APPEND)
+ ENDIF(${VARIABLE})
+ ENDIF("${VARIABLE}" MATCHES "^${VARIABLE}$")
+ENDMACRO(CHECK_INCLUDE_FILES)