On Jan 4, 2016, at 5:39 AM, Jeff Epler [off-list ref] wrote:

I believe the patch does not have the desired effect, because make(1)
always sets CC automatically:

$ cat raj.mk
CROSS_COMPILE=x86_64-linux-gnu-
CC?=$(CROSS_COMPILE)gcc
.PHONY: default
default:
	@echo CC=$(CC)
$ make -f raj.mk
CC=cc

With your patch, those who specify CROSS_COMPILE, or for whom gcc and cc
are different, will get different (worse) behavior.

Right. I think if CC was used as such with out constructing out of CROSS_COMPILE
in Makefile then my issue would be fixed too. However this would mean that cross compiling users
now have to pass CC = <cross-compiler> themselves instead of CROSS_COMPILE prefix. Is that
acceptable ?

I believe this idea has been discussed before, but it is hard to search
for because few search engines will let you search on "CC ?=" and not
just ignore the "?=".

Also I am not sure why you are submitting this patch on -rt-users, it
doesn't seem to be particularly relevant to the RT patchset.

See the MAINTAINERS file, I just followed whats in there.

Jeff