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Bug #47757 JPG vs JPEG
Submitted: 2009-03-24 09:35 UTC Modified: 2009-03-24 09:46 UTC
From: frank at scriptzone dot nl Assigned: pajoye (profile)
Status: Closed Package: GD related
PHP Version: 5.2.9 OS: Any
Private report: No CVE-ID: None
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From: frank at scriptzone dot nl
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 [2009-03-24 09:35 UTC] frank at scriptzone dot nl 
Description:
------------
I think inconsistent naming is quite annoying.

To compile GD with JPEG support you have to do something like ./configure --with-gd --with-jpeg-dir. However in phpinfo pages JPEG support is displayed as "JPG Support enabled".

So basicly, when I actually successfully compiled GD with JPEG-support: I thought it failed because I was looking for "JPEG" in phpinfo, and not "JPG".

Not quite an essential bug, but perhaps worth fixing in the future.

Reproduce code:
---------------
'./configure' '--prefix=/usr' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--with-apxs2=/usr/sbin/apxs' '--with-ldap=/usr' '--with-kerberos=/usr' '--enable-cli' '--with-zlib-dir=/usr' '--enable-exif' '--enable-ftp' '--enable-mbstring' '--enable-mbregex' '--enable-sockets' '--with-iodbc=/usr' '--with-curl=/usr' '--with-config-file-path=/etc' '--sysconfdir=/private/etc' '--with-mysql-sock=/var/mysql' '--with-mysqli=/usr/local/mysql/bin/mysql_config' '--with-mysql=/usr/local/mysql' '--with-openssl' '--with-xmlrpc' '--with-xsl=/usr' '--without-pear' --with-jpeg-dir=/usr/local/lib/ --with-gd

Expected result:
----------------
JPEG support

Actual result:
--------------
JPG support

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 [2009-03-24 09:46 UTC] pajoye@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 [2011-03-08 22:37 UTC] test at test dot com 
So unfortunately this fix had a side effect of breaking various scripts that checked for JPEG image format support in GD by calling gd_info() and looking for the key 'JPG Support' .

I'm surprised that the source of this breakage was just this complaint about compiler flag labeling.

Support for existing runtime behavior and avoiding breaking currently working scripts should easily trump worries about compiler flag consistency, it would be cool to take that more into account in the future.
 
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