Re: debug builds with NO optimizations

[Andre Caldas]

> Well, yes, Autoconf had to go the compromise and detect *these* flags
> also when they were in the environment.  But it only does so for a few
> common variables.  You have to declare a variable as `precious' if you,
> the developer, want another variable recorded; see
>   info Autoconf 'Setting Output Variables'

By the way, if you use AC_CONFIG_SUBDIRS, you may end up with a 
"parent configure" script that does not treat CFLAGS as a precious 
variable. But the "child configure" may need it.

If you type:
./config.status --version
you will not see any 'CFLAGS'. But if you:
./child/config.status --version
then you will.

Andre Caldas.