Re: [CentOS] c++ Development question

2015-11-06 Thread m . roth
Leandro wrote:
> Hello Centos user.
> 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.
>
Read the manpage on yum to start.

Do you have gcc++ installed? If not, yum install "Development tools"
(assuming you're running CentOS 7; if you're on 6, it's yum groupinstall

I suppose, if you really, *really* need a 2GB text editor, you could
install eclipse.

Then, understand that any package *should* install in the correct place.
For some oddities, you might have to set the environment variable
LD_LIBRARY_PATH.

Finally, to see what libraries or compiler tools are available, yum list
lib\*, etc.

Also, check to see if you have rpmfusion and epel repos enabled.

  mark

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Re: [CentOS] c++ Development question

2015-11-06 Thread John R Pierce

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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[CentOS] c++ Development question

2015-11-06 Thread Leandro

Hello Centos user.
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.


I hope someone can help my on this.
Regards,
Leo.

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