Problem with PHP4 & LIBPNG (Linux)

[Anon]

Hi All.

Does anybody know how to run support for PNG files in PHP4. I thing I have tried almost everything and it still does not work.

1. I have installed libpng-1.2.0 in /usr/local/libpng (libpng.a and so are in /usr/local/lib and in /usr/local/libpng).
2. I have installed zlib in /usr/local/zlib (as above libz.a and so are in /usr/local/lib and /usr/local/zlib).
3. I have installed gd-1.8.4 in /usr/local/gd and libgd.a is in /usr/local/lib and in /usr/local/gd .
4. All include files for all libs are in its install directories and in /usr/local/include .
5. I have also proved that after compilation all gd projects example files like gdtopng or pngtogd works perfectly. And they definetly use function 'gdImageCreateFromPng'

Now I have configured php with following options (not everything is here but this options are inetresting for PNG):
--with-apxs --with-gd=/usr/local/gd --with-png-dir=/usr/local/libpng --with-zlib=/usr/local/zlib
--enable-trans-sid
I have compiled it and only JPEG support works. No PNG support in my libphp4.so.

Also what I have realized, is that during config sript I have got following messages:

checking whether to include GD support... yes
checking whether to enable truetype string function in gd... no
checking for the location of libjpeg... yes
checking for jpeg_read_header in -ljpeg... (cached) yes
checking for the location of libpng... yes
checking for png_info_init in -lpng... (cached) yes

(SO IT CAN FING GD, LIBJPEG and LIBPNG !!)
But later:

checking for gdImageString16 in -lgd... (cached) yes
checking for gdImagePaletteCopy in -lgd... (cached) yes
checking for gdImageCreateFromPng in -lgd... (cached) no
checking for gdImageCreateFromGif in -lgd... (cached) no
checking for gdImageWBMP in -lgd... (cached) yes
checking for gdImageCreateFromJpeg in -lgd... (cached) yes

Strange is that this function (gdImageCreateFromPng) is in libgd.a! I have checked it! So why PHP configure can not find it?? Does anybody has any sugestion how to configure it propelly.

With best regards

Marcin Gryszczuk

[Anon]

I see it says (cached) next to it - try make distclean and manually remove config.cache is it still exists.

Try building it again.

-m.

[Anon]

Hi all..

yes, but this does not work either.
Anyway I have found it out - you haev tio include in config following flags:

--with-png (without any parameter) together with --with-png-dir

--with-zlib (without any parameter) together with --with-zlib-dir

And then it works...

Regards

Marcin Gryszczuk