Re: Info sources for Programming

[cjw44@cam.ac.uk (Colin Watson)]

cliff@neosoft.com (Cliff Rice) wrote:
>I'm fairly new to the Linux scene and have found a nifty program
>on the net I'd like to build called "GRASS".  I'm running potato
>with a kernel of 2.2.12 and have what I think is all of the
>programming libraries and such.  However when I did a build on
>GRASS 4.3 , I got the following at link time. I have programmed
>GIS programs before and would like to start using this one.
>
>OBJ.i386/main.o: In function `main':
>OBJ.i386/main.o(.text+0x246): undefined reference to `clear_input'
>OBJ.i386/gis_pars.o: In function `yyparse':
>OBJ.i386/gis_pars.o(.text+0x1cd): undefined reference to `yylex'
>collect2: ld returned 1 exit status
>make[1]: *** [/mnt/grass4.3/i386/etc/r.combine] Error 1
>make[1]: Leaving directory `/mnt/grass4.3/src/raster/r.combine/cmd'
>make: *** [all] Error 1
>GISGEN failure at STEP: src/raster/r.combine
>
>OK, I did a man and info on yylex and clear_input and got nothing.
>Is there a reference somewhere that I can find out what these
>are so I can 1. download the appropriate libraries, or 2, 
>edit the source and use newer function calls if they are
>obsolete.  (Hope this is a proper query for this board)

I don't know what clear_input() is, but yylex() is a lexical analysis
function which should have been generated for that particular program by
some derivative of the program 'lex', normally 'flex'. Install the flex
package and see if that helps.

-- 
Colin Watson                                           [cjw44@cam.ac.uk]