Thread: Qt

I'm compiling a QT app the first 1 in the tutorial, I keep getting linker errors (different every time. QT was installed from RPM with my distro and all the include files are in usr/include/qt so the install should be OK.

the command Im typing is:
> g++ hiworld.cpp -o world

do I need to add anything to the command? some object files or something?

What else could be the problem?

There are almost certainly library files
that you have to link in on the compile command line. By default, only the standard C library is included. So, to include a specific extra library, the compile command needs -l (lowercase "L" not the digit) and a few letters to tell the name of the library. For example, -lm means include the math library. Check your docs for the reference to the library for QuickTime -- I bet it's -lqt or something like that. You may need other libraries too, such as -lm -lz. Check the QT docs.....

The way you know what the -l switches are is the name of the library minus "lib" at the beginning and the suffixes. F'r instance, the math library is libm.so.whatever so you use -lm; if you want libjpeg6a.so.blabla you would use the switch -ljpeg6a and so on.