[xine-user] Problem installing: configure does not recognize my libpng

[Jonas R. <j.r...@st...>]

Hi guys, 

I have been trying to get xine-ui-0.9.13 installed, after a seemingly
flawless installation of xine-lib-0.9.13. I am a real newby to Linux, so
I spent a week trying to figure out what stupid mistake I was making,
but I still can't figure it out. I've read all the documentation I could
find and the related postings on the mailing list, but to no avail.
First off: I am running Red Hat 8.0 kernel 2.4.18-17 on a Sony Vaio
F807K with Pentium III (Coppermine) 650Mhz, with an ATI Rage Mobility
P/M videocard with ati.2 drivers courtesy of the Gatos project.
When I run ./configure for xine-ui after a while it stops with the
following message:
    
    checking for png_read_info in -lpng... no
    configure: error: *** libpng is needed (PNG library not found) - try
    to use --with-png-prefix option ***

The first time I saw this I started looking for libpng on my system.
Some tests and their results:

    [root@localhost xine-ui-0.9.13]# rpm -q libpng
    libpng-1.2.2-6
    
    ldconfig -p | grep libpng
            libpng12.so.0 (libc6) => /usr/lib/libpng12.so.0
            libpng.so.3.1.2.2 (libc6) => /usr/lib/libpng.so.3.1.2.2
            libpng.so.3 (libc6) => /usr/lib/libpng.so.3
            libpng.so.2 (libc6) => /usr/lib/libpng.so.2
    
As far as I interpret this this means libpng is on my system. So I tried
    ./configure --with-png-prefix=/usr/lib 
    
but same problem remains. So I turn to you for help. By the way this is
some of the output from the env command:

    LD_LIBRARY_PATH=/sbin
    PATH=/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/usr/java/j2sdk1.4.1_01/bin:/home/Jopz/bin:/usr/java/j2sdk1.4.1_01/bin:/sbin:/usr/java/j2sdk1.4.1_01/bin:/sbin

I set the LD_LIBRARY_PATH to /sbin because that is where ldconfig
resides on my system. Is this correct? Also when I look at my PATH I see
the java path and /sbin repeated a few times, I think this is because I
stuck those in a script in /etc/profile.d/ and used su to become root
(so those scripts must have run twice I guess) but I don't think such
repetition in the PATH variable should cause any problems?

Thanks a lot for any help guys, I really want to see Xine running...

Greetings, Jonas