[Qemu-devel] Re: [PATCH 30/42] Rename CPPFLAGS to CFLAGS

[Paolo Bonzini]

Just wanted to point out that this is wrong.  -I and -D *are* CPPFLAGS.

However, the real issue is that CFLAGS should be reserved for the user 
at make time (defaulting to something *constant* like -O2 -g or whatever 
else).  Actually so should CPPFLAGS, but at least it is much less likely 
to be used, while "make CFLAGS=-g" is common during development and 
supported by almost every package I know of.

You can also call it QEMU_CPPFLAGS or QEMU_CFLAGS and we can be happy.
You then have to add both $(QEMU_CPPFLAGS) and $(CFLAGS) to compilation 
commands in both configure and Make.

Paolo