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Building SWIG wrappers with SCons

SWIG already works out the the box, you just add your *.i file 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).

   1 import SCons.Script
   2 
   3 #... then, later...
   4 
   5 SWIGScanner = SCons.Scanner.ClassicCPP(
   6     "SWIGScan",
   7     ".i",
   8     "CPPPATH",
   9     '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
  10 )
  11 
  12 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

SwigBuilder (last edited 2008-03-12 02:47:06 by localhost)