makefiles and qt programming

tcaptain · 07-04-2003, 01:38 PM

Hi, I'm getting used to making and using makefiles on my own with programming and I've run into a snag when following a QT tutorial, I wonder if anyone can help...

Here's the makefile:

Code:

INCL= -I$(QTDIR)/include -I$(KDEDIR)/include
CFLAGS= -pipe -O2 -fno-strength-reduce
LFLAGS= -L$(QTDIR)/lib -L$(KDEDIR)/lib -L/usr/X11R6/lib
LIBS= -lqt -lX11 -lXext
CC=g++

qtfortune: qtfortune.o
	$(CC) $(LFLAGS) -o qtfortune qtfortune.o $(LIBS)

qtfortune.o: qtfortune.cpp

clean: 
	rm -f qtfortune
	rm -f qtfortune.o

.SUFFIXES: .cpp

.cpp.o:
	$(CC) -c $(CFLAGS) $(INCL) -o $@ $<

I get the following output (error):

/usr/bin/ld: cannot find -lqt
collect: ld returned 1 exit status
make: *** [qtfortune] Error 1

I checked ld.so.conf and it has the qt3 directory (/usr/lib/qt3/lib) already...

The text says something that the LIBS variable is a list of library names the program will need and gives the example that -lqt will be changed into libqt.so...

I've looked everywhere and I can't find libqt.so anywhere...the closest thing I can see is libqt-mt.so.3 or something in the lib directory...

Can anyone point me in the right direction?

tcaptain · 07-04-2003, 01:44 PM

Nevermind...I found it.

Google didn't help a whole lot, but a bit of determined digging found this problem in the QT-interest archives at trolltech, so I figure I'd post it in case someone else runs into this.

It seems to be a problem between older qt versions and qt3 (from what I understood anyway) and changing:

-lqt

to:

-lqt-mt

in the makefile fixes the problem and I can compile