Re: Doubt about plotting on MAC OS X Catalina

[Dr . Jürgen Sauermann]

Hi, there is a very nice description of how to install GNU APL on Macintosh written by Peter Teeson. You can find in in the HOWTOs directory. I don't know if Macintosh uses OSX, but Peters document is anyhow worthwhile reading. BTW I have updated the ⎕PLOT error message to be more specific as to which library is missing. Best Rgeards, Jürgen Sauermann On 11/27/19 12:32 PM, Antonio Juan wrote: Thanks; I need to completely read the GNU-APL DOC, sorry about that You are right the problem is with the libxcb. ⎕plot 1 2 3 4 5 SYNTAX ERROR+       ⎕PLOT 1 2 3 4 5       ^       )MORE ⎕PLOT is not available because either no libxcb library was found on this system when GNU APL was compiled, or because it was disabled in ./configure. Exist a tutorials for building gnu-apl in OSX Thanks for your time Toni  El 26 nov 2019, a las 17:27, Dr. Jürgen Sauermann <m...@xn--jrgen-sauermann-zvb.de> escribió: Hi Toni, the + character after SYNTAX ERROR (or any other APL error) indicates that there is more information available regarding that error. The additional information can be displayed with command )MORE. I suspect that in this particular case libraries needed for plotting (essentially libX11.so, libxcb.so, and libX11-xcb.so) were missing on the platform where GNU APL was compiled (i.e. your own machine if you compiled from source or the build machine of a package if you installed a binary package). For ⎕PLOT to work, you may need to compile the interpreter from source with the required X libraries installed beforehand. Best Regards, Jürgen Sauermann On 11/26/19 2:27 PM, Antonio Juan wrote: Thanks for this awesome software. I have installed gnu plot 1.8 from brew package. It works well, and good integration with emacs. So it is a good environment for learning APL. The only think is that when I try to plot I always get the following error: ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3 SYNTAX ERROR+ ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3 ^ I do not see anywhere, if is needed to load a workspace, or the needed for some environment configuration during installation. So really I do not know how to proceed. Thanks for your time Toni