On 11/6/2015 10:05 AM, Leandro wrote:
Im learning about c/c++ , so far every thing works great.
The problem begins when I try to install a new library or a third
party api.
For example now I need to install the jsoncpp implementation in my
centos box but I have no idea how to do it.
I realized that my knolowge about those things is very poor.
I would like to ask you for some documentation about libraries
directories layout regarding c/c++ programing.
Im not interested in the languaje it self but how to prepare my server
to succesfully compile c/c++ programas.
DO not put anything you've built in any of the system libraries
(/usr/lib, etc) unless you package your code as RPM for deployment.
Libraries you compile for your own use would normally be put in a lib
directory somewhere under your own home directory, perhaps under your
project directory, and they should be referenced in your make file.
.a, .o libraries that are in, say, $HOME/lib, can be referenced by
-L$HOME/lib ... if these are .so libraries, if you specify the path to
your /lib/ directory in the --rpath option to ld (the gnu linker) or
-Wl,--rpath= when you use gcc++ to link for you, then at runtime it will
look for the .so files in that path.
if the programs you're compiling will be installed under /usr/local for
system-wide use, then the required shared libraries should also be
installed under /usr/local/something and that path should be passed to
--rpath
--
john r pierce, recycling bits in santa cruz
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