Mathieu Malaterre wrote: > This is a follow up on a previous post. > > I have written a simple dependency scanner macro (*). There is still > one dependency missing: > I need to reexecute the CMake macro every time the swig *.i file is > modified. > > How do I do that ? >
You don't. You add the dependencies directly and let CMake do its magic. BTW... in the bug list there's already a UseSWIG with dependency scanning/updating (don't recall who did it). I attach my modified versions of such (which work with cmake2.5 now), and also find swig a tad better. -- Gonzalo Garramuño [EMAIL PROTECTED] AMD4400 - ASUS48N-E GeForce7300GT Kubuntu Edgy
# - Find SWIG # This module finds an installed SWIG. It sets the following variables: # SWIG_FOUND - set to true if SWIG is found # SWIG_DIR - the directory where swig is installed # SWIG_EXECUTABLE - the path to the swig executable SET(SWIG_FOUND FOOBAR) FIND_PATH(SWIG_DIR SWIGConfig.cmake /usr/local/share/swig/1.3.32 /usr/local/share/swig/1.3.31 /usr/local/share/swig/1.3.30 /usr/local/share/swig/1.3.29 /usr/local/share/swig1.3 /usr/share/swig1.3 /usr/lib/swig1.3) FIND_PATH(SWIG_DIR swig.swg /usr/local/share/swig/1.3.32 /usr/local/share/swig/1.3.31 /usr/local/share/swig/1.3.30 /usr/local/share/swig/1.3.29 /usr/local/share/swig1.3 /usr/share/swig1.3 /usr/lib/swig1.3 "$ENV{PROGRAMFILES}/swig/1.3.32" "$ENV{PROGRAMFILES}/swig/1.3.31" "$ENV{PROGRAMFILES}/swig/1.3.30" "$ENV{PROGRAMFILES}/swig/1.3.29" "$ENV{PROGRAMFILES}/swig1.3" "C:/cygwin/usr/local/share/swig/1.3.32" "C:/cygwin/usr/local/share/swig/1.3.31" "C:/cygwin/usr/local/share/swig/1.3.30" "C:/cygwin/usr/local/share/swig/1.3.29" "C:/cygwin/usr/share/swig/1.3.32" "C:/cygwin/usr/share/swig/1.3.31" "C:/cygwin/usr/share/swig/1.3.30" "C:/cygwin/usr/share/swig/1.3.29" "C:/cygwin/usr/local/share/swig1.3" ) IF(EXISTS ${SWIG_DIR}) IF("x${SWIG_DIR}x" STREQUAL "x${CMAKE_ROOT}/Modulesx") MESSAGE("SWIG_DIR should not be modules subdirectory of CMake") ENDIF("x${SWIG_DIR}x" STREQUAL "x${CMAKE_ROOT}/Modulesx") IF(EXISTS ${SWIG_DIR}/SWIGConfig.cmake) INCLUDE(${SWIG_DIR}/SWIGConfig.cmake) SET(SWIG_FOUND 1) ELSE(EXISTS ${SWIG_DIR}/SWIGConfig.cmake) FIND_PROGRAM(SWIG_EXECUTABLE NAMES swig1.3 swig PATHS ${SWIG_DIR} "${SWIG_DIR}/.." "${SWIG_DIR}/../../bin" "${SWIG_DIR}/../../../bin" ) FIND_PATH( SWIG_USE_FILE_PATH NAME UseSWIG.cmake PATHS ${CMAKE_MODULE_PATH} ${CMAKE_ROOT}/Modules ) SET( SWIG_USE_FILE "${SWIG_USE_FILE_PATH}/UseSWIG.cmake" ) ENDIF(EXISTS ${SWIG_DIR}/SWIGConfig.cmake) ENDIF(EXISTS ${SWIG_DIR}) IF("x${SWIG_FOUND}x" STREQUAL "xFOOBARx") SET(SWIG_FOUND 0) IF(EXISTS ${SWIG_DIR}) IF(EXISTS ${SWIG_USE_FILE}) IF(EXISTS ${SWIG_EXECUTABLE}) SET(SWIG_FOUND 1) ENDIF(EXISTS ${SWIG_EXECUTABLE}) ENDIF(EXISTS ${SWIG_USE_FILE}) ENDIF(EXISTS ${SWIG_DIR}) IF(NOT ${SWIG_FOUND}) IF(${SWIG_FIND_REQUIRED}) MESSAGE(FATAL_ERROR "Swig was not found on the system. Please specify the location of Swig.") ENDIF(${SWIG_FIND_REQUIRED}) ENDIF(NOT ${SWIG_FOUND}) ENDIF("x${SWIG_FOUND}x" STREQUAL "xFOOBARx")
# - SWIG module for CMake # Defines the following macros: # SWIG_ADD_MODULE(name language [ files ]) # - Define swig module with given name and specified language # SWIG_LINK_LIBRARIES(name [ libraries ]) # - Link libraries to swig module # SWIG_GET_WRAPPER_DEPENDENCIES(swigFile genWrapper language DEST_VARIABLE) # - Put dependencies of the wrapper genWrapper generated by swig from # swigFile in DEST_VARIABLE # All other macros are for internal use only. # To get the actual name of the swig module, # use: ${SWIG_MODULE_name_REAL_NAME}. # Set Source files properties such as CPLUSPLUS and SWIG_FLAGS to specify # special behavior of SWIG. Also global CMAKE_SWIG_FLAGS can be used to add # special flags to all swig calls. # Another special variable is CMAKE_SWIG_OUTDIR, it allows one to specify # where to write all the swig generated module (swig -outdir option) # The name-specific variable SWIG_MODULE_<name>_EXTRA_DEPS may be used # to specify extra dependencies for the generated modules. SET(SWIG_CXX_EXTENSION "cxx") SET(SWIG_EXTRA_LIBRARIES "") SET(SWIG_PYTHON_EXTRA_FILE_EXTENSION "py") # # Get dependencies of the generated wrapper. # MACRO(SWIG_GET_WRAPPER_DEPENDENCIES swigFile genWrapper language DEST_VARIABLE) GET_FILENAME_COMPONENT(swig_getdeps_basename ${swigFile} NAME_WE) GET_FILENAME_COMPONENT(swig_getdeps_outdir ${genWrapper} PATH) GET_SOURCE_FILE_PROPERTY(swig_getdeps_extra_flags "${swigFile}" SWIG_FLAGS) IF("${swig_getdeps_extra_flags}" STREQUAL "NOTFOUND") SET(swig_getdeps_extra_flags "") ENDIF("${swig_getdeps_extra_flags}" STREQUAL "NOTFOUND") IF(NOT swig_getdeps_outdir) SET(swig_getdeps_outdir ${CMAKE_CURRENT_BINARY_DIR}) ENDIF(NOT swig_getdeps_outdir) SET(swig_getdeps_depsfile "${swig_getdeps_outdir}/swig_${swig_getdeps_basename}_deps.txt") GET_DIRECTORY_PROPERTY(swig_getdeps_include_directories INCLUDE_DIRECTORIES) SET(swig_getdeps_include_dirs) FOREACH(it ${swig_getdeps_include_directories}) SET(swig_getdeps_include_dirs ${swig_getdeps_include_dirs} -I${it}) ENDFOREACH(it) EXECUTE_PROCESS( COMMAND ${SWIG_EXECUTABLE} -MM -MF ${swig_getdeps_depsfile} ${swig_getdeps_extra_flags} ${CMAKE_SWIG_FLAGS} -${language} -o ${genWrapper} ${swig_getdeps_include_dirs} ${swigFile} RESULT_VARIABLE swig_getdeps_result ERROR_VARIABLE swig_getdeps_error OUTPUT_STRIP_TRAILING_WHITESPACE) IF(NOT ${swig_getdeps_result} EQUAL 0) MESSAGE(SEND_ERROR "Command \"${SWIG_EXECUTABLE} -MM -MF ${swig_getdeps_depsfile} ${swig_getdeps_extra_flags} ${CMAKE_SWIG_FLAGS} -${language} -o ${genWrapper} ${swig_getdeps_include_dirs} ${swigFile}\" failed with output:\n${swig_getdeps_error}") SET(swig_getdeps_dependencies "") ELSE(NOT ${swig_getdeps_result} EQUAL 0) FILE(READ ${swig_getdeps_depsfile} ${DEST_VARIABLE}) # Remove the first line STRING(REGEX REPLACE "^.+: +\\\\\n +" "" ${DEST_VARIABLE} "${${DEST_VARIABLE}}") # Clean the end of each line STRING(REGEX REPLACE " +(\\\\)?\n" "\n" ${DEST_VARIABLE} "${${DEST_VARIABLE}}") # Clean beginning of each line STRING(REGEX REPLACE "\n +" "\n" ${DEST_VARIABLE} "${${DEST_VARIABLE}}") # clean paths STRING(REGEX REPLACE "\\\\\\\\" "/" ${DEST_VARIABLE} "${${DEST_VARIABLE}}") STRING(REGEX REPLACE "\n" ";" ${DEST_VARIABLE} "${${DEST_VARIABLE}}") ENDIF(NOT ${swig_getdeps_result} EQUAL 0) ENDMACRO(SWIG_GET_WRAPPER_DEPENDENCIES) # # For given swig module initialize variables associated with it # MACRO(SWIG_MODULE_INITIALIZE name language) STRING(TOUPPER "${language}" swig_uppercase_language) STRING(TOLOWER "${language}" swig_lowercase_language) SET(SWIG_MODULE_${name}_LANGUAGE "${swig_uppercase_language}") SET(SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG "${swig_lowercase_language}") IF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xUNKNOWNx$") MESSAGE(FATAL_ERROR "SWIG Error: Language \"${language}\" not found") ENDIF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xUNKNOWNx$") SET(SWIG_MODULE_${name}_REAL_NAME "${name}") IF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPYTHONx$") SET(SWIG_MODULE_${name}_REAL_NAME "_${name}") ENDIF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPYTHONx$") IF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPERLx$") SET(SWIG_MODULE_${name}_EXTRA_FLAGS "-shadow") ENDIF("x${SWIG_MODULE_${name}_LANGUAGE}x" MATCHES "^xPERLx$") ENDMACRO(SWIG_MODULE_INITIALIZE) # # For a given language, input file, and output file, determine extra files that # will be generated. This is internal swig macro. # MACRO(SWIG_GET_EXTRA_OUTPUT_FILES language outfiles generatedpath infile) FOREACH(it ${SWIG_PYTHON_EXTRA_FILE_EXTENSION}) SET(${outfiles} ${${outfiles}} "${generatedpath}/${infile}.${it}") ENDFOREACH(it) ENDMACRO(SWIG_GET_EXTRA_OUTPUT_FILES) # # Take swig (*.i) file and add proper custom commands for it # MACRO(SWIG_ADD_SOURCE_TO_MODULE name outfiles infile) SET(swig_full_infile ${infile}) GET_FILENAME_COMPONENT(swig_source_file_path "${infile}" PATH) GET_FILENAME_COMPONENT(swig_source_file_name_we "${infile}" NAME_WE) GET_SOURCE_FILE_PROPERTY(swig_source_file_generated ${infile} GENERATED) GET_SOURCE_FILE_PROPERTY(swig_source_file_cplusplus ${infile} CPLUSPLUS) GET_SOURCE_FILE_PROPERTY(swig_source_file_flags ${infile} SWIG_FLAGS) IF("${swig_source_file_flags}" STREQUAL "NOTFOUND") SET(swig_source_file_flags "") ENDIF("${swig_source_file_flags}" STREQUAL "NOTFOUND") SET(swig_source_file_fullname "${infile}") IF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_SOURCE_DIR}") STRING(REGEX REPLACE "^${CMAKE_CURRENT_SOURCE_DIR}" "" swig_source_file_relative_path "${swig_source_file_path}") ELSE(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_SOURCE_DIR}") IF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_BINARY_DIR}") STRING(REGEX REPLACE "^${CMAKE_CURRENT_BINARY_DIR}" "" swig_source_file_relative_path "${swig_source_file_path}") SET(swig_source_file_generated 1) ELSE(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_BINARY_DIR}") SET(swig_source_file_relative_path "${swig_source_file_path}") IF(swig_source_file_generated) SET(swig_source_file_fullname "${CMAKE_CURRENT_BINARY_DIR}/${infile}") ELSE(swig_source_file_generated) SET(swig_source_file_fullname "${CMAKE_CURRENT_SOURCE_DIR}/${infile}") ENDIF(swig_source_file_generated) ENDIF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_BINARY_DIR}") ENDIF(${swig_source_file_path} MATCHES "^${CMAKE_CURRENT_SOURCE_DIR}") SET(swig_generated_file_fullname "${CMAKE_CURRENT_BINARY_DIR}") IF(swig_source_file_relative_path) SET(swig_generated_file_fullname "${swig_generated_file_fullname}/${swig_source_file_relative_path}") ENDIF(swig_source_file_relative_path) # If CMAKE_SWIG_OUTDIR was specified then pass it to -outdir IF(CMAKE_SWIG_OUTDIR) SET(swig_outdir ${CMAKE_SWIG_OUTDIR}) ELSE(CMAKE_SWIG_OUTDIR) SET(swig_outdir ${CMAKE_CURRENT_BINARY_DIR}) ENDIF(CMAKE_SWIG_OUTDIR) SWIG_GET_EXTRA_OUTPUT_FILES(${SWIG_MODULE_${name}_LANGUAGE} swig_extra_generated_files "${swig_outdir}" "${swig_source_file_name_we}") SET(swig_generated_file_fullname "${swig_generated_file_fullname}/${swig_source_file_name_we}") # add the language into the name of the file (i.e. TCL_wrap) # this allows for the same .i file to be wrapped into different languages SET(swig_generated_file_fullname "${swig_generated_file_fullname}${SWIG_MODULE_${name}_LANGUAGE}_wrap") IF(swig_source_file_cplusplus) SET(swig_generated_file_fullname "${swig_generated_file_fullname}.${SWIG_CXX_EXTENSION}") ELSE(swig_source_file_cplusplus) SET(swig_generated_file_fullname "${swig_generated_file_fullname}.c") ENDIF(swig_source_file_cplusplus) #MESSAGE("Full path to source file: ${swig_source_file_fullname}") #MESSAGE("Full path to the output file: ${swig_generated_file_fullname}") GET_DIRECTORY_PROPERTY(cmake_include_directories INCLUDE_DIRECTORIES) SET(swig_include_dirs) FOREACH(it ${cmake_include_directories}) SET(swig_include_dirs ${swig_include_dirs} "-I${it}") ENDFOREACH(it) SET(swig_special_flags) # default is c, so add c++ flag if it is c++ IF(swig_source_file_cplusplus) SET(swig_special_flags ${swig_special_flags} "-c++") ENDIF(swig_source_file_cplusplus) SET(swig_extra_flags) IF(SWIG_MODULE_${name}_EXTRA_FLAGS) SET(swig_extra_flags ${swig_extra_flags} ${SWIG_MODULE_${name}_EXTRA_FLAGS}) ENDIF(SWIG_MODULE_${name}_EXTRA_FLAGS) SWIG_GET_WRAPPER_DEPENDENCIES("${swig_source_file_fullname}" "${swig_generated_file_fullname}" ${SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG} swig_extra_dependencies) LIST(APPEND SWIG_MODULE_${name}_EXTRA_DEPS ${swig_extra_dependencies}) # If CMAKE_SWIG_OUTDIR was specified then pass it to -outdir IF(CMAKE_SWIG_OUTDIR) ADD_CUSTOM_COMMAND( OUTPUT "${swig_generated_file_fullname}" COMMAND "${SWIG_EXECUTABLE}" ARGS "-${SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG}" ${swig_source_file_flags} ${CMAKE_SWIG_FLAGS} -outdir ${CMAKE_SWIG_OUTDIR} ${swig_special_flags} ${swig_extra_flags} ${swig_include_dirs} -o "${swig_generated_file_fullname}" "${swig_source_file_fullname}" MAIN_DEPENDENCY "${swig_source_file_fullname}" DEPENDS ${SWIG_MODULE_${name}_EXTRA_DEPS} COMMENT "Swig source") ELSE(CMAKE_SWIG_OUTDIR) ADD_CUSTOM_COMMAND( OUTPUT "${swig_generated_file_fullname}" ${swig_extra_generated_files} COMMAND "${SWIG_EXECUTABLE}" ARGS "-${SWIG_MODULE_${name}_SWIG_LANGUAGE_FLAG}" ${swig_source_file_flags} ${CMAKE_SWIG_FLAGS} -outdir ${swig_outdir} ${swig_special_flags} ${swig_extra_flags} ${swig_include_dirs} -o "${swig_generated_file_fullname}" "${swig_source_file_fullname}" MAIN_DEPENDENCY "${swig_source_file_fullname}" DEPENDS ${SWIG_MODULE_${name}_EXTRA_DEPS} COMMENT "Swig source") ENDIF(CMAKE_SWIG_OUTDIR) SET_SOURCE_FILES_PROPERTIES("${swig_generated_file_fullname}" PROPERTIES GENERATED 1) SET(${outfiles} "${swig_generated_file_fullname}" ${swig_extra_generated_files}) ENDMACRO(SWIG_ADD_SOURCE_TO_MODULE) # # Create Swig module # MACRO(SWIG_ADD_MODULE name language) SWIG_MODULE_INITIALIZE(${name} ${language}) SET(swig_dot_i_sources) SET(swig_other_sources) FOREACH(it ${ARGN}) IF(${it} MATCHES ".*\\.i$") SET(swig_dot_i_sources ${swig_dot_i_sources} "${it}") ELSE(${it} MATCHES ".*\\.i$") SET(swig_other_sources ${swig_other_sources} "${it}") ENDIF(${it} MATCHES ".*\\.i$") ENDFOREACH(it) SET(swig_generated_sources) FOREACH(it ${swig_dot_i_sources}) SWIG_ADD_SOURCE_TO_MODULE(${name} swig_generated_source ${it}) SET(swig_generated_sources ${swig_generated_sources} "${swig_generated_source}") ENDFOREACH(it) GET_DIRECTORY_PROPERTY(swig_extra_clean_files ADDITIONAL_MAKE_CLEAN_FILES) SET_DIRECTORY_PROPERTIES(PROPERTIES ADDITIONAL_MAKE_CLEAN_FILES "${swig_extra_clean_files};${swig_generated_sources}") ADD_LIBRARY(${SWIG_MODULE_${name}_REAL_NAME} MODULE ${swig_generated_sources} ${swig_other_sources}) SET_TARGET_PROPERTIES(${SWIG_MODULE_${name}_REAL_NAME} PROPERTIES PREFIX "") ENDMACRO(SWIG_ADD_MODULE) # # Like TARGET_LINK_LIBRARIES but for swig modules # MACRO(SWIG_LINK_LIBRARIES name) IF(SWIG_MODULE_${name}_REAL_NAME) TARGET_LINK_LIBRARIES(${SWIG_MODULE_${name}_REAL_NAME} ${ARGN}) ELSE(SWIG_MODULE_${name}_REAL_NAME) MESSAGE(SEND_ERROR "Cannot find Swig library \"${name}\".") ENDIF(SWIG_MODULE_${name}_REAL_NAME) ENDMACRO(SWIG_LINK_LIBRARIES name)
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