[SM-Discuss] ./configure cache?
BearPerson at gmx.net
Wed Feb 9 13:26:52 EST 2005
Seth Woolley wrote:
> Maybe put config.cache in where the depends info is, then a cast -r can
> clear it. Store it with a hash of the dependency info and CFLAGS, etc.,;
> if it changes, it has to run configure again? If config.cache use
> fails, just have it run configure without it, as you say.
> Although config cache is mostly useful if you are doing debugging and
> rebuilding the same version all the time with minor code tweaks.
Ah, I must've been a little unclear.
The config.cache is not a spell-specific thing.
Multiple spells can use the same cache, this way e.g compiling kde gets
sped up quite a bit. If anything is missing in the cache file they add it,
if it's already there they use it.
However, config.cache use will NOT fail if system contents have changed,
e.g a specific header added or removed. They will silently assume that
header is still in the state it was when that cache entry was generated,
not double-checking since that would be against the purpose of a cache.
(the purpose of a cache is to be right, wasn't that what we said once ;-)
Therefore, it does not only have to get cleared by a -r.
Any spells that do anything with libraries can potentially disrupt the
cache. I would suggest those would be all with "\.h$" matching anywhere
in their install log. Unfortunately, I guess the cache would simply
have to be deleted after a cast of one of them. I would not advise us
to delete the cache based on the install log though. This should be
set intelligently by the spell writers... (if they can manage)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 189 bytes
Desc: not available
Url : http://lists.ibiblio.org/pipermail/sm-discuss/attachments/20050209/58ced84a/attachment.bin
More information about the SM-Discuss