es exist)
            * enabling functions for redirecting formatted image stream
              I/O to memory (on Linux only)
        After running ./configure: make; make install.  There's also
        a 'make check' for testing.

    (3) Using cmake (supported by Egor Pugin).
        The build must always be in a different directory from the root
        of the source (here).  It is common to build in a subdirectory
        of the root.  From the root directory, do this:
            mkdir build
          