Re: [Qemu-devel] CFLAGS nitpicking

[James Boddington]

Thomas Schwinge wrote:
> On Sun, Oct 24, 2004 at 10:38:06PM +0200, Magnus Damm wrote:
> At present it is not possible to alter 'CFLAGS', 'LDFLAGS' and 'LIBS'
> when building QEMU without modifiying all the Makefiles.
>
> I'd suggest the following:
> The lines that explicitally set 'CFLAGS', 'LDFLAGS', 'LIBS' (and
> others?) are removed from all Makefiles.

If you want to override those variables for a make you can specify them 
on the command line

make CFLAGS="-O2 -mcpu=athlon-xp" CC=/opt/gcc-3.4.2/bin/gcc

I have been doing to to compile with different CFLAGS and different 
versions of gcc.

This will override the default CFLAGS settings from the Makefile. Saves 
having to edit anything. You can use this to override other variables 
set in the Makefile. CC CXX CFLAGS LDFLAGS prefix DESTDIR ROOT. Maybe 
not DESTDIR and ROOT with qemu but they are 2 other things that do get 
set this way with other projects.

--
   James