Re: [cc65] Building with custom CC and CFLAGS

On Donnerstag 10 September 2009, Ullrich von Bassewitz wrote:
> On Thu, Sep 10, 2009 at 09:19:36AM +0200, Per Olofsson wrote:
> > I thought I'd try building the new snapshots with clang instead of
> > gcc, to see what the static analyzer would catch. Unfortunately all 14
> > gcc.mak files explicitly set CC and CFLAGS, instead of inheriting
> > values from the main makefile, making it a real chore.
>
> It's a similar problem as with the global makefile: I'm not really using it
> while developing. Sometimes, I need a debug version of the compiler, so
> I'll remove -O2 from CFLAGS in the makefile.
>
> Do you have an idea how to fix it without taking me the option to change a
> setting for one of the tools on the fly?
>
> > As the CC and
> > CFLAGS values vary a bit, I can't easily fix it with a perl oneliner
> > either...
>
> At least the CC value is always the same:
>
> uz@trixie:~/src/cc65/src$ grep "CC\s*=" */make/gcc.mak
> ar65/make/gcc.mak:CC    = gcc
> ca65/make/gcc.mak:CC    = gcc
> cc65/make/gcc.mak:CC=gcc
> cl65/make/gcc.mak:CC=gcc
> co65/make/gcc.mak:CC    = gcc
> common/make/gcc.mak:CC  = gcc
> da65/make/gcc.mak:CC=gcc
> grc/make/gcc.mak:CC     = gcc
> ld65/make/gcc.mak:CC=gcc
> od65/make/gcc.mak:CC=gcc
> sim65/make/gcc.mak:CC   = gcc
>
> The CFLAGS value varies, but for a reason. Some of the tools need #defines,
> others don't.

mmmh what about... instead of writing

CFLAGS=-whatever

simply do

CFLAGS+=-whatever

in the makefile. then it would pick up cflags from the environment, and you 
could even add cflags on the commandline easily

$ CFLAGS="-g" make



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