How to fetch ./configure parameters used at last time?

Question

I am upgrading LAMP stack on customer's server and need to ./configure mysql and apache with exact last settings they were compiled with last time. Where do I get these? PHP configure string can be got by php -i. What about others?

Solution 1

Was the decompressed source directory kept around? If so, the configure flags would typically be in config.status or config.log.

This differs slightly depending on the software and whether or not autoconf was used.

Solution 2

config.status has a --config flag to print out the last configuration. I found it by running ./config.status --help

--config     print configuration, then exit

So just run ./config.status --config, and it will print out all the configure parameters.

Comments

[Vladislav Rastrusny]

This is not evangelical, this is just how that works ;) Unfortunately, RPM versions don't satisfy that case.

[Ophidian]

This is the usual "I'm running CentOS but I need more recent versions of everything" case?

[William Pursell]

+1: Also (assuming configure was generated by autoconf), you can reconfigure using the same flags by running $ config.status --recheck.

[Vladislav Rastrusny]

No. Different reasons. CentOS version of Apache does not support worker mpm for example. Being torrent tracker, server needed worker mpm. etc.

[Ophidian]

I suppose you could rebuild the source rpm with support turned on... A patch on the spec might be easier to maintain. You probably need to have your own, higher epoch set up so that system updates to httpd don't override yours.