Some things to think about:

1) The LOCATE_TARGET magic only works if the 'As' rule is invoked from Library or Main. Are you by any chance invoking 'As' directly?

2) You may need to doctor up the As action for your platform. In the version of Jambase I have, the -I flag is only set for the Unix As action. So on NT, for example, I suspect the assembler has no way of finding the header.inc file.

3) You might try setting up HDRSCAN for assembler source. You shouldn't have to use DEPENDS explicitly.

From your example, I'm guessing you're on a desktop platform, and the 'include' directives in your assembler code don't match the default HDRPATTERN string. (If they did, you wouldn't have to do anything at all, except add the -I flag to the 'As' action.)

So you could set up something like:

ASM_HDRPATTERN = "[your regexp here]" ;

Then, in your Jamfile:

Library zoo : elk.c okapi.asm ;

HDRSCAN on okapi.asm = $(ASM_HDRPATTERN) ;

You may have to experiment with HDRSCAN and HDRPATTERN. I'm never really sure how & when the HdrRule values are applied, but through blind experimentation I've been able to coax some pretty slick behavior out of jam.

---Laura

------------------------------------------------------------------------------ Laura Wingerd Sybase, Inc. 510-922-5232 wing...@sybase.com