Description:
------------
So I just did a pear upgrade pecl/oci8
and got:
 1. Please provide the path to the ORACLE_HOME directory. Use
'instantclient,/path/to/instant/client/lib' if you're compiling with
Oracle Instant Client : autodetect

I tried to just hit enter and have it "autodetect" and I got an error
message:
checking OCI8 libraries dir... lib
checking Oracle version... configure: error: Oracle client libraries not
found

However if I select '1' and enter 'instantclient' and then hit enter
then everything works. 

Reproduce code:
---------------
1. pear upgrade pecl/oci8
2. Hit enter at the prompt.

Expected result:
----------------
Compiles and works. 

Actual result:
--------------
checking OCI8 libraries dir... lib
checking Oracle version... configure: error: Oracle client libraries not
found

You can have both instant and "old" client installed, so you have to
choose which version OCI8 configure should be looking for.
No bug here.

I don't have a problem with the old client being installed. I'd rather
see configure automatically look for instant client if old client is not
there instead of throwing an error message to the screen.

We do accept patches for features you want to see in future releases.
Still no bug here.

Ok. I just whipped up a quick patch. Re-opening as a feature request.

Sorry for the spam, but it seems that I can't add attachment(s) here.

Here is the link to the patch: http://pastebin.com/f50771791

This bug has been fixed in CVS.

In case this was a documentation problem, the fix will show up at the
end of next Sunday (CET) on pecl.php.net.

In case this was a pecl.php.net website problem, the change will show
up on the website in short time.
 
Thank you for the report, and for helping us make PECL better.

Fixed in PHP 5.3 and 6.  Will also be in the (future) PECL OCI8 1.3.5.

This enhancement also benefits full PHP builds.  If ./configure
--with-oci8 or --with-oci8=shared is specified but the ORACLE_HOME
environment variable is not actually set, the install will warn and look
for the Instant Client RPM.

Patched file (which was also refactored) is at
http://cvs.php.net/viewvc.cgi/pecl/oci8/config.m4?r1=1.55.2.3.2.11.2.6&r
2=1.55.2.3.2.11.2.7