Re: automake's Per-Object Flags Emulation --- CFLAGS override or just prepend ?

[Michele Martone]

On address@hidden:43, Michele Martone wrote:
> Hi,
> 
> I'm using the "Per-Object Flags Emulation" functionality of automake
> to build a single library (.a) file from two .a files, each made of .o
> files compiled with different flags.
> 
> In order to apply the example of
>  
> http://www.gnu.org/software/automake/manual/automake.html#Per_002dObject-Flags
>  
> in my Makefile.am, I declare something similar to
>   libfoo_a_CFLAGS = -some -other -flags
> expecting that libfoo.a will be compiled with -some -other -flags 
> rather than CFLAGS.
> 
> However in the resulting Makefile I see that something like the
> following:
>  libfoo_a-foo.o: foo.c
>          $(CC) ... $(libfoo_a_CFLAGS) $(CFLAGS) ...
> is being generated instead.
> In other words, CFLAGS is not being replaced by libfoo_a_CFLAGS: only
> prepended: this does not seem neither what the documentation says nor
> what I need.
> 
> Am I doing something wrong ? 
I attach an example to illustrate the point; see the contained README file.

automake-per-object-flags-emulation-misbehaviour.tgz
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