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

[Karel Kulhavý <clock@twibright.com>]

On Sat, Aug 21, 2004 at 12:57:23AM +1000, Hamish Moffatt wrote:
> On Fri, Aug 20, 2004 at 08:23:45AM +0000, Karel Kulhavý wrote:
> > I got numerous problems with missing -lz, -lm in addition to -lpng during compilation
> > of gerbv-0.16
> 
> > configure:3716: gcc -o conftest -O2 -march=athlon-xp -fomit-frame-pointer -fstrength-reduce -fschedule-insns -I/home/clock/usr/include   conftest.c -lpng   >&5
> > /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.2.3/../../../libpng.so: undefined reference to `deflate'
> 
> That means your libpng is built wrong. It should link against libz
> itself if it needs it, rather then depending on user applications to
> provide that link.

I have built it according to libpng's own installation instructions :-|

Cl<
> 
> > /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.2.3/../../../libpng.so: undefined reference to `deflateReset'
> 
> You only changed configure. You would need to change the makefiles also.
> 
> > I think the ./configure and make mechanism of gerbv must be broken somehow.
> 
> No, your libpng is broken.
> 
> Hamish
> -- 
> Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>