Re: [BBv2] 'requirements' attribute of an 'alias' target

From: pal.tw (b84037_at_[hidden])
Date: 2003-11-03 21:57:49

> 
> You can specify usage requirements on "bzlib", like this:
> 
> alias bzlib : bzlib/$(SOURCE_FILES) : : : 
<link>shared:<define>BZ_EXPORT ;
> 
> This feature was added quite recently, and will appear in M9.
> 
Thanks, but usage requirements seem to apply all source targets,
not just this group of source files..
Ex.
--------------------------------------------------------------
alias libjasper : $(SOURCE_FILES)
<define>EXCLUDE_MIF_SUPPORT <define>EXCLUDE_PNM_SUPPORT
<define>EXCLUDE_BMP_SUPPORT <define>EXCLUDE_RAS_SUPPORT
<define>EXCLUDE_JPG_SUPPORT <define>EXCLUDE_PGX_SUPPORT
: : <include>$(SOURCE_ROOT)/jp2/src/libjasper/include
;
--------------------------------------------------------------
The symbols is just for 'libjasper' group.
Although it might be fine for others. But I think 
it would be dangerous to exceed the limit of command line.
So my original question should be how to apply a property-set
to a subset of source targets.