Plugins for glpsol or lp_solve

[Francisco J. Graña Betancourt <francisco ciget camaguey cu>]

Because the program asks me to select the algorithm to use, then show me like this:

Dialog box
Gnumeric is unable to locate the program glpsol needed for the GNU Linear
Programming Kit solver.
For more information see http://www.gnu.org/software/glpk/.

Would you like to locate it yourself?
Si           No

Dialog box
Gnumeric is unable to locate the program lp_solve needed for the LP Solve solver.
For more information see http://sourceforge.net/projects/lpsolve/.

Would you like to locate it yourself?
Si           No


I don't know where to locate them

Thank you