[Techtalk] Can't get there from here

[Terri Oda]

At 11:36 PM 28/03/02 -0500, Davis, Jennifer wrote:
>I am quickly getting the hang of this coding thing, but I feel really dopey
>when trying to get a simple KDE program to compile.  There it is below, and
>below it is the output from the compiler.  I just can't figure out what I'm
>doing, let alone figuring out what I'm doing wrong.  I guess there is more
>to compiling QT/KDE than a simple command line.  Could anyone offer me a
>push in the right direction to help me compile my first gui program?

I'd say you're almost certainly missing a library (that's what undefined 
references are -- you've referred to things, but it doesn't know where to 
find the actual code that goes with them)

I haven't compiled a QT program in ages, so I can't tell you which 
library/libraries might be missing, but I'd guess it's probably named 
something like libqt, so you'd fix this by adding the library to your 
compile line something like this:

g++ -o test.exe test.cpp -lqt

where -lqt tells it to link in the library libqt.so, assuming it can find 
it.  Your qt libraries probably aren't anywhere too weird, so trying this 
should just work.

If that's not the right library, you can usually figure out which one 
*will* be the right library by looking up the man page for one of the 
functions you're using.

Incidentally, 'test' tends to be a bad name for first programs on linux 
systems because there's already a program called test and I've seen people 
confused for ages as to why their program didn't seem to be working when, 
in fact, they were running the 'test' program already provided and not 
their new program! (your 'test.exe' should be fine, though, I was just 
reminded when I was cutting and pasting the line.)