Ronan Keryell wrote: > >>>>> On Fri, 25 Jan 2008 14:39:57 +0000, Paul Brook <[EMAIL PROTECTED]> said: > > >> Saying CPPFLAGS+= is much more convenient if for any reason the > >> external build environment would like to pass unusual CPPFLAGS. > > Paul> No. This doesn't do what you thing it does. The most common way > Paul> of overriding these variables is to pass them on the > Paul> commandline, i.e. "make CPPFLAGS=-blah". This overrides all > Paul> assignments to that variable including +=. > > By the way, it is possible to improve the GNU make weirdness :-) by > playing with stuff like: > > override CFLAGS += -g > > Cf section 6.7 of the documentation.
IIRC the documentation warns against careless use of overrides. > Hmmm... GNU make evolves more rapidly than my brain... :-) It's only a decade old or so. :-) Thiemo
