On Mon, Jan 18, 2016 at 11:04:34AM +0100, Peter Lemenkov wrote:
Hello All!
2016-01-18 7:50 GMT+01:00 Segher Boessenkool segher@kernel.crashing.org:
It probably works fine. "?=" can be problematic with e.g. recursive makefiles, but you don't have those here.
Also it's already used within the Makefiles to override C-compiler, so my patch won't change the current situation.
But why do you need it? Why doesn't e.g.
make DESTDIR=/opt/blawork for you as-is? Or do you need those vars to be passed in via the environment?
Unfortunately this DESTDIR trick won't work. Explicitly stated variables from the Makefile itself have preference over the environment variables unless they stated with "?=". At least this is how GNU make works.
But this is *not* an environment variable!
Segher