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Add macro for checking if a swequence of includes can be includes

This commit is contained in:
Andy Cedilnik 2003-01-01 18:00:49 -05:00
parent 8714396927
commit de00883c41
1 changed files with 40 additions and 0 deletions
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40
Modules/CheckIncludeFiles.cmake Normal file
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#
# 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)