PHP standard depends on other extensions

Hi Piotr,

I'm trying to compile the latest PHP without compiled-in extensions so I
could loaded them later from php.ini. Unfortunately I've found that
standard depends on spl (spl_ce_Countable) and date. At least the second is
very small library, but the first depends on libxml and other extensions,
so I wouldn't like to compile it statically.

If I got it right ext/date is just separated from standard since ext/standard
is quite big and this gives a bit more structure but be always on.

A build with spl statically compiled in is for me just a few k bigger than a
build without spl. But building spl shared wouldn't work well for two
reasons: It deals with quite engine-near stuff (like overriding the [] syntax
or __autoload()) and other extensions behave different depending on wether it
was compiled in or not (for example MySQLi's MysqliException is extended from
SPL's RuntimeException if available at compile time)

btw. I don't see a reason for building basic extensions as shared...

Another thing. I can't compile readline as dynamic library. It is
unfortunate, because libedit makes that terminal can't be detached so it
would be very nice to have CLI tool with readline for inteactive work and
without readline for background work. See
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=286356 for details about
problems with readline.

I can't reproduce this on my readline-powered box and your link states "We
believe that the bug you reported is fixed in the latest version of libedit"
if not please report to the libedit guys or use readline. ;-)

johannes