Re: [automake] Dependency question with _LDADD

[Peter Johansson]

Hello Michel,

Michel Briand wrote:
> Hi all,
>
> I implemented a new idea for program's version.
>
> In src/bin/Makefile.am:
>
> internal_version.c: ${top_srcdir}/PROGRAM_VERSION
>         ${top_srcdir}/vtempl.pl $(component) $(VERSION) < $(templ) > $@
>
> training_SOURCES = training.c internal_version.c
>
> The vtempl.pl Perl program takes a template as input and filter it to
> produce the internal_version.c source file.
>
> Each time the PROGRAM_VERSION file will be changed, the new source file
> will be regenerated, then the build system will recompile it, and
> relink the program.
>   
The source file will be regenerated only if PROGRAM_VERSION is changed, 
though. I would add the template file, the perl script `vtempl.pl', and 
`Maskefile' in the list of dependencies.

I don't know what your perl script looks like or what it achieves, but I 
could imagine you could achieve something similar with a simple sed 
call. See chapter 4.8.2 in autoconf manual for an example 
http://www.gnu.org/software/autoconf/manual/autoconf.html#Installation-Directory-Variables
Thereby you could avoid the requirement that users need perl to build 
your package.

Also, what is the reason you don't want to use config.h?

Cheers,
Peter
> Comments are welcome.
>
> Best regards,
>
> Michel
>
>
>
>