Re: Why CFLAGS works but not name_CFLAGS sometimes?

[Sander Niemeijer <niemeijer at science-and-technology dot nl>]

On dinsdag, mei 6, 2003, at 07:24 Europe/Amsterdam, <cs@gnumatica.com> 
wrote:

> Is there a reason sometimes name_CFLAGS
> does not work and you must just do CFLAGS because
> just CFLAGS by itself works???

This could be the case if you want to overrule an option in name_CFLAGS 
that is also in CFLAGS (for instance change the optimization setting).
Because automake compiles with '$(CC) ... $(name_CFLAGS) $(CFLAGS) ...' 
an option in name_CFLAGS will be overruled by the option in CFLAGS. At 
least for gcc (but AFAIK this is the same for any compiler/linker) the 
last option has the highest precedence. The same holds for CPPFLAGS and 
LDFLAGS.
However, there is one exception, which is the '-I' and '-L' options (in 
that case the first occurance has higher precedence).

Is this what you meant? Otherwise sent an example of what went wrong 
exactly.

Regards,
Sander