Installation errors on X-library

[guanglongxu]

       I am helping my friend to install the FEAP 7.4 (old one) on a CentOS 5.8 system, but the latest compilers of gfortran and gcc.
       It reported errors on relative to the X-library. There is no lib files in the X11R6 folder.

      Could you pls do me a favor to tell me how to edit the
           FOPTIONS =    &     COPTIONS =   (i.e. 'options to be used by the loader')   in the makefile.in file correctly?

[FEAP_Admin]

You need to first make sure that the X11 development libraries are install on the machine.
I have a CentOS machine and they are located in /usr/X11R6/lib so I would expect that they would in the same location but you never know.

If they are not install you either have to install them.  Or you can build the program without plotting capabilities.  To do so, use the
pplotf.f in the main directory (this is a dummy routine).