Now it's clear to me. Thank you very much.

2012/7/22 Dan Fandrich <dan_at_coneharvesters.com>

> On Sat, Jul 21, 2012 at 11:24:01PM +0300, Slav wrote:
> > Hmm, that's really so. I was ascerting that new (1.26) curl is
> successfully
> > installed by removing all curl.so files from filesystem and after
> installation
> > new curl.so appeared and compilation command is `g++ ./main.cpp
> -L/usr/local/
> > lib -lcurl -o test`.
> > Why does system builds against some *.so.4 files?
>
> What the system builds your curl against and what it runs it against are
> two completely different things. One has to do with the gcc
> configuration and the other with the run-time linker configuration. You
> can deliberately choose to run a curl with a different library version at
> run-time, which is essentially what the system is doing on your behalf.
> If you want to run your curl against a specific libcurl at run-time, you
> can either configure the run-time linker to do that at run-time
> (LD_LIBRARY_PATH or /etc/ld.so.conf), configure the run-time linker at
> compile time (-rpath), put the libcurl.so.4 file where the run-time
> linker will use it by default (e.g. into /usr/lib), or statically link
> it.
>
> >>> Dan
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Received on 2012-07-22