clarification needed about libgd and imagejpg()

[Giovanni Gherdovich]

Hello,

I had no success in making libgd working with
PHP (I run a linux system). It seems that my
libgd cannot handle jpg files.

When I run on my webserver the script

<?php
var_dump(gd_inf o());
?>

I get this output:

array(11) {
["GD Version"]= string(27) "bundled (2.0.34
compatible)"
["FreeType Support"]= bool(false)
["T1Lib Support"]= bool(false)
["GIF Read Support"]= bool(true)
["GIF Create Support"]= bool(true)
["JPG Support"]= bool(false)
["PNG Support"]= bool(true)
["WBMP Support"]= bool(true)
["XPM Support"]= bool(false)
["XBM Support"]= bool(true)
["JIS-mapped Japanese Font Support"]= bool(false) }

from wich is quite clear that I cannot handle jpg files;
but why? Do I need an extra library?

If I run some scripts, I get the error
"Call to undefined function imagejpeg() in ..."

Thankyou in advance.

Best regards,
Giovanni Gherdovich

[Guillaume]

Re: clarification needed about libgd and imagejpg()

Giovanni Gherdovich a écrit :

from wich is quite clear that I cannot handle jpg files;
but why? Do I need an extra library?

libjpeg.

http://www.ijg.org/

Apache configuration --with-jpeg-dir=****

Regards,
--
Guillaume

[Giovanni Gherdovich]

Re: clarification needed about libgd and imagejpg()

Thankyou Guillame for the reply.

libjpeg.
http://www.ijg.org/

Mmmh.. I already had libjpeg in my system.

I tried to locate my libjpeg files and I got

/usr/lib/libjpeg.a
/usr/lib/libjpeg.la
/usr/lib/libjpeg.so
/usr/lib/libjpeg.so.62
/usr/lib/libjpeg.so.62.0 .0

so I recompiled PHP adding --with-jpeg-dir=/usr/lib

and the output from configure was

[...]
checking for GD support... yes
checking for the location of libjpeg... /usr/lib
checking for the location of libpng... no
[...]

(before it was "checking for the location of libjpeg... no")

But I still don't have jpeg support with GD...
(the output from gd_info() is the same as above,
and it doesn't find imagejpg())

It's strange that PHP doesn't find libpng while
configuring, but from gd_info() it seems I have
png support.

Apache configuration --with-jpeg-dir=****

Do you mean that I must recompile Apache,
instead of PHP?

Here

http://marc.info/?l=php-install&m=99976860421801&w=2

I've read that also the gd library itself must be
compiled with jpeg support...

I don't have the whole picture very clear.
Any hint?

Regards,
GGhh

[Guillaume]

Re: clarification needed about libgd and imagejpg()

Giovanni Gherdovich a écrit :

>Apache configuration --with-jpeg-dir=****

>
Do you mean that I must recompile Apache,
instead of PHP?

My bad, I was thinking PHP ^^

Still I have no other clue regarding the problem... It perfectly worked
for me. Plus I should say that I'm not compiling PHP every day :p

Regards,
--
Guillaume

[Rik Wasmus]

Re: clarification needed about libgd and imagejpg()

On Wed, 19 Mar 2008 18:39:16 +0100, Guillaume <ggrason@gmail. comwrote:

Giovanni Gherdovich a écrit :

>>Apache configuration --with-jpeg-dir=****

> Do you mean that I must recompile Apache,
>instead of PHP?

My bad, I was thinking PHP ^^
>
Still I have no other clue regarding the problem... It perfectly worked
for me. Plus I should say that I'm not compiling PHP every day :p

I'd say this:
"When buliding the jpeg-v6b library (prior to building PHP) you must use
the --enable-shared option in the configure step. If you do not, you will
receive an error saying libjpeg.(a|so) not found when you get to the
configure step of building PHP."

The wonders of installation instructions: <http://nl2.php.net/gd>
--
Rik Wasmus