Re: CFLAGS, CPPFLAGS, etc.

[Alex Lancaster]

>>>>> "PJ" == Paul Johnson <address@hidden> writes:

[...]


PJ> 1. We should no longer do command line Flag-Setting with make, as
PJ> in

PJ> make CPPFLAGS=-DMYSETTING

PJ> because it obliterates the CPPFLAGS now set in the Swarm
PJ> Makefile.common file.  Rather, the right thing is to add a line
PJ> toward the end of the Makefile

PJ> override CPPFLAGS += -DMYSETTING

The thing to do, to override CPPFLAGS, try:

make EXTRACPPFLAGS+=-DMYSETTING

etc/swarm/Makefile.common now parses the EXTRACPPFLAGS macro.  The
point of the this `EXTRA' macro is so you can add flags from the
command-line (since you don't override the internally-used CPPFLAGS)
without messing around with the Makefiles.

Alex


-- 
  Alex Lancaster           |  e-mail: address@hidden
  Swarm Program            |     web: http://www.santafe.edu/~alex
  Santa Fe Institute       |     tel: +1-(505) 984-8800 (ext 242)
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