Re: cache-file

[Steven G. Johnson]

Thomas Dickey wrote:
> > It's about the cache-file. I'm using autoconf 2.53 and in the 'configure'
> > script I always get 'cache_file=/dev/null'. I know I could use a cache
> > passing the '-C' option to 'configure', but I would prefer to have it
> > automatically set to 'config.cache' by autoconf. 
>
> you can (until some kludger "improves" things again) assign to the cache_file
> shell variable in your configure.in

Before you do that, however, you should understand that the cache file 
was removed by default for a *reason*: users experienced continual 
problems by inadvertently using stale cache files (archetypically 
because they upgraded their system to satisfy some unsatisfied 
dependency that configure itself had complained about).  (There was a 
recent thread about this on this list.)

If you want to use config.cache on your own machine, for your own use, a 
better solution is to modify the config.site file (search for 
"config.site" in the autoconf manual) to set the cache_file variable.

Steven