what means is defined in DSO /lib64/libz.so.1

[Sérgio Basto]

yeah ,I think,  I install zlib-devel and fix the problem , because
detect zlib. 
Thanks


On Tue, 2012-03-06 at 18:21 +0100, Fabian Deutsch wrote: 
> Am Dienstag, den 06.03.2012, 17:10 +0000 schrieb Sérgio Basto:
> > Hi , I found this error 
> > 
> > /usr/bin/ld: /usr/lib/gcc/x86_64-redhat-linux/4.7.0/../../../../lib64/libgpac_static.a(base_encoding.o): undefined reference to symbol 'deflate'                                                              
> > /usr/bin/ld: note: 'deflate' is defined in DSO /lib64/libz.so.1 so try
> > adding it to the linker command
> > line                                                                                                   
> > /lib64/libz.so.1: could not read symbols: Invalid
> > operation                                            
> > collect2: error: ld returned 1 exit status
> 
> DSO is something like an auto-symbol-resolver (so linking in libraries
> that are used by other directly-linked libraries, google for with with
> fedora).
> DSO is deactivated on fedora, therefor you need to pass each library
> required to the linker.
> In the above case you need to additionally pass -lz to the linked (e.g.
> using LDLAGS=-lz), as suggested by gcc (which says: is defined in)
> 
> Greetings
> fabian
> 
> 
> > 
> > Could someone help me , to understand what happens ? 
> > 
> > Thanks in advance, 
> > -- 
> > Sérgio M. B.
> > 
> > 
> 
> 

-- 
Sérgio M. B.