Re: gEDA: Problems compiling gerbv: -lz, -lm

[Stefan Petersen <spe@stacken.kth.se>]

On Sat, 21 Aug 2004, Karel Kulhavý wrote:

> Can you point to a section of libpng specification saying that the user
> program may rely on the fact that -lm and -lz will be linked by libpng
> itself?

What does "libpng-config --libs" return?


> Have you written the program according to the libpng interface specification?

The _program code_ is OF COURSE written according to the libpng interface
specification. Your problem is configuration/building.

I have now changed the configuration of gerbv to use libpng-config
instead. In CVS and will come in next release.

If you want goto http://sourceforge.net/project/showfiles.php?group_id=5624,
download libpng-1.2.6-config.tar.gz, run "./configure ; make ; make install".

I have downloaded above mentioned tar ball, compiled it and run
"ldd .libs/libpng12.so.0.0.0" which gave the following output:

        libz.so.1 => /usr/lib/libz.so.1 (0x40033000)
        libm.so.6 => /lib/libm.so.6 (0x40044000)
        libc.so.6 => /lib/libc.so.6 (0x40067000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x80000000)

In the output from ldd you see that libpng is dynamically linked to libm
and libz.

What are you running on? Linux/*BSD/.., gcc version etc etc?

/spe