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Re: buggy interaction between MAKEFLAGS += rR and CC ?= my_gcc
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From: |
Paul Smith |
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Subject: |
Re: buggy interaction between MAKEFLAGS += rR and CC ?= my_gcc |
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Date: |
Thu, 25 Aug 2016 15:37:34 -0400 |
On Thu, 2016-08-25 at 11:27 -0800, Britton Kerin wrote:
> If assignment into MAKEFLAGS is going to be supported at all, it
> should have exactly the effect that the corresponding command line
> options have. In this case, that means CC etc. should be undefined
> (as with the undefine directive) from the point rR is injected, not
> just empty with origin default.
GNU make only reparses the MAKEFLAGS variable after all makefiles have
been read in.
It doesn't re-parse MAKEFLAGS every time MAKEFLAGS is changed anywhere
in the makefile.