ilib_include_flag Return a formatted includes related string to pass to system compiler

## Call Sequence

    compiler_flag = ilib_include_flag(path_strings)

## Arguments

path_strings

  Vector of relative or absolute path as string.

compiler_flag

  Compiler flag as string

## Description

This function is an utility function provided to handle several includes path. The result can be passed to tbx_build_gateway.

## Examples

        includes_path = ["../src/includes";"/usr/include/somelib/includes";"."];
        includes_src_c = ilib_include_flag(includes_path);

        ilib_build('somelib',['myfun',sci_myfun'],['myfile.c'],[],[],includes_src_c);

## See also

- tbx_build_gateway ilib_build