[CMake] Reexecute cmake to update build.make

[Mathieu Malaterre]

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 ?

Thanks
-Mathieu


(*)
On 5/30/07, Mathieu Malaterre <mathieu.malaterre at gmail.com> wrote:
...
> MACRO(SWIG_GET_DEP SWIG_FILE DEP_LIST)
>   # Read the swig file:
>   FILE(READ ${SWIG_FILE} swig_file)
>   # STRING MATCHALL does not work, thus do a line by line STRING MATCH
>   STRING(REGEX REPLACE "\r?\n" ";" ENT "${swig_file}")
>
>   SET( dep_list )
>   FOREACH(line ${ENT})
>     STRING(REGEX MATCH "^[ ]*[%|#]include.*$" out1 ${line})
>     # REGEX REPLACE is ALWAYS called, thus producing garbage most of
> the time. Need to couple it with
>     # REPLACE MATCH
>     STRING(REGEX REPLACE "^[ ]*[%|#]include[ \"]*([^\"]+)[ \"]*$"
> "\\1" out ${line})
>     IF( out1 )
>       # discard any `%include swig_stuff.i` by only looking at header files:
>       IF( out MATCHES ".*\\.h$" )
>         GET_DIRECTORY_PROPERTY(cmake_include_directories INCLUDE_DIRECTORIES)
>         FOREACH(dir ${cmake_include_directories})
>           # append to the list any file that can be found in the
> INCLUDE_DIRECTORIES
>           IF(EXISTS ${dir}/${out})
>             LIST(APPEND dep_list ${dir}/${out})
>           ENDIF(EXISTS ${dir}/${out})
>         ENDFOREACH(dir ${cmake_include_directories})
>       ENDIF( out MATCHES ".*\\.h$" )
>     ENDIF( out1 )
>   ENDFOREACH(line)
>
>   LIST(SORT dep_list)
>   # I need `uniq`...
>   SET(${DEP_LIST} ${dep_list})
> ENDMACRO(SWIG_GET_DEP)
...