Re: Autom4te.cache

[Akim Demaille]

| Hi all,
| So, I generated a configure file, kept the autom4te.cache directory
| around, made a minor change to the configure.in file and this is the
| resulting times I got:
| 
| [dangermouse hdf5_current] time autoconf
| configure.in:233: warning: AC_CONFIG_SUBDIRS: you should use literals
| 
| real  0m30.977s
| user  0m26.480s
| sys   0m0.320s
| [dangermouse hdf5_current] time autoconf
| configure.in:233: warning: AC_CONFIG_SUBDIRS: you should use literals
| 
| real  0m31.118s
| user  0m26.430s
| sys   0m0.300s
| 
| So, why doesn't this give me a better time to autoconf the configure.in
| if things are cached?

You said yourself you changed configure.ac, what did you expect???

If you _need_ figures, then take these ones for instance:

~/src/fileutils-4.1.5 % time ( rm -rf autom4te.cache; autoconf; rm -rf 
autom4te.cache; autoheader )           
autoheader: `config.hin' is unchanged
( rm -rf autom4te.cache; autoconf; rm -rf autom4te.cache; autoheader )  72,61s 
user 1,05s system 97% cpu 1:15,44 total
~/src/fileutils-4.1.5 % time ( rm -rf autom4te.cache; autoconf; autoheader )   
autoheader: `config.hin' is unchanged                           
( rm -rf autom4te.cache; autoconf; autoheader )  38,10s user 0,51s system 97% 
cpu 39,470 total