Hello
How to compile a program (src) is as portable ?
Like vlc, kaffein, gimp...

???

You need to use portable libraries and language constructs present in your compiler(s) of choice for all platforms. Ideally use standard C/C++, ideally C89 if it's "C" (i.e. ANSI "C"), though C99 appears to be well supported well.

Try not to use system-specific system calls and primitives, use stuff like "Boost" (C++) library to have these system-specific stuff abstracted away.

vlc in linux this is a compilation
./configure
make
make install

How do I compile with c99 as portable

thanks for answer

Can you be a little more specific in what you mean by portable?
In your example, building vlc like that will succeed if you have the prerequisite libraries and headers installed... try compiling it on a bare bones, text-console only debian box and you'll see what I mean.

put a handle on it?
maybe wheels if it's heavy.

The "portable" word has a number of meanings.

One of them is portability across operating systems, another - (typically used in Windows world) independence from system libraries, the ability to run from any directory, no need of installation.

That second meaning is well reflected by "self contained".

So, what meaning do you have in mind ?

The second is to explain your
When compiled the program is installed in the root
and Program can not move, but I want to be installed anywhere and relocatable

thanks

From your example above, what happens during the build of the executable is controlled by the MakeFile.

A simple compilation... gcc example.c -o example will output the executable in the current directory.

Some builds allow you to run as root or a limited user... in the latter case, they will install somewhere like /home/user/bin

You need to be a lot more detailed in what you are asking here. Provide examples and such. Sadly there are very few of us who transcend genius to godhood and as such have to rely upon standard methods of communication rather than psychic abilities.