SwigBuilder

Building SWIG wrappers with SCons

SWIG already works out the the box, you just add your .i files to the list of source files and it will all turn out fine. Built-in SWIG doesn't track down dependencies though, so try this snippet from Mattias on the mailing list: Update 19 July 2007: Support for tracking SWIG dependencies has been added to the SCons code base and will be available next release (most likely 0.97.1). The configuration is controlled by a $SWIGPATH variable that is searched for .i files and which gets translated into -I options on the command line (like the $CPPPATH variable does for C preprocessing).

import SCons.Script

#... then, later...

SWIGScanner = SCons.Scanner.ClassicCPP(
    "SWIGScan",
    ".i",
    "CPPPATH",
    '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
)

env.Prepend(SCANNERS=[SWIGScanner])

Mattias also writes: "Regarding the _wrap.h for directors I just add it add a SideEffect() and a Clean() call for it. You might also considering throwing a Depends() in there. Do the same for the generated .py file." -- JohnPye