> > 3) "gcc -lX11 -lforms -lm xhello.c -o xhello" gets a message from ld that
> > it can't open -lX11. This is the program from the LJ article.
>
> On my system (rather messed up slackware) I had to include
>
> -L/usr/X11/lib -lXext -lforms -lm
>
> don't ask me why, I know next to nothing about X.
It's not an X thing, it's an installation thing.
Normally, the X libraries live in /usr/lib, which the loader driver
knows about. gnu loader driver steps also know about /usr/local/lib.
They don't generally know about anything else. So, if your libraries
live somewhere non-standard (like /usr/X11/lib) then you have to tll
them where.
BTW, Unix loaders are pretty dumb and search in the order of
appearance on the command line, so
gcc -lX11 -lforms -lm xhello.c -o xhello
is likely to result in unresolved external references. You should
probably call the loader with
gcc -lforms -lX11 -lm xhello.c -o xhello
since libforms.a calls X11 functions.
spl
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