[Qt-interest] Installing 4.5 SDK on Linux

[Judy Duncan]

Thanks so much Donal!  
 
That gets me closer.  Now when I try to compile the simplest "Hello World"
project, I get the output below.
The ld linker is complaining that it cannot find a library called freetype,
which is a font rendering engine.  When I use the Synaptic Package Manager
on my system I see a libfreetype6 and libfreetype6-dev.  The libfreetype6
shows as already being installed.
 
There is a libfreetype.so.6.3.18 in /usr/lib.  I tried adding this to my
path but I still get the same results.  Any suggestions?  (Sorry to take
your time with such trivial stuff)
 
Thanks... Judy
 
--- output from make ----
g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB
-DQT_CORE_LIB -DQT_SHARED -I../../qtsdk-2009.01/qt/mkspecs/linux-g++ -I.
-I../../qtsdk-2009.01/qt/include/QtCore
-I../../qtsdk-2009.01/qt/include/QtGui -I../../qtsdk-2009.01/qt/include -I.
-I. -I. -o main.o main.cpp
 
g++ -Wl,-O1 -Wl,-rpath,/home/judy/qtsdk-2009.01/qt/lib -o chap1-1 main.o
-L/home/judy/qtsdk-2009.01/qt/lib -lQtGui -L/home/judy/qtsdk-2009.01/qt/lib
-L/usr/X11R6/lib -pthread -lfreetype -lgobject-2.0 -lSM -lICE -pthread
-pthread -lXrender -lfontconfig -lXext -lX11 -lQtCore -lm -pthread
-lgthread-2.0 -lrt -lglib-2.0 -ldl -lpthread
/usr/bin/ld: cannot find -lfreetype
collect2: ld returned 1 exit status
make: *** [chap1-1] Error 1
----------------------------------------------------
 
--- content of project file created by qmake ---
TEMPLATE = app
TARGET = 
DEPENDPATH += .
INCLUDEPATH += .

# Input
SOURCES += main.cpp
-------------------------------------
 
 

  _____  

From: Donal O'Connor [mailto:donaloconnor at gmail.com] 
Sent: Thursday, April 02, 2009 5:15 PM
To: Judy Duncan
Cc: qt-interest at trolltech.com
Subject: Re: [Qt-interest] Installing 4.5 SDK on Linux


Try 

$ sudo apt-get install build-essential

You need g++ in your PATH environmental variable

export PATH=$PATH:/path/to/g++ (it should usually be in /usr/bin/g++)


On Fri, Apr 3, 2009 at 1:16 AM, Judy Duncan <jduncan at duncanimaging.com>
wrote:


The new 4.5 SDK is a great starting point for someone new like myself, but
it's confusing because the books and installation documentation were written
before the SDK packaging.  Installing under Ubuntu 8.1, I downloaded the SDK
bin file, made it executable, and ran it.  Qt Creator comes up fine, but the
make files refer to g++ for CXX entry and when I try to do any of the
examples from bash, the environment isn't correct.
 
Do I do all of the steps from the earlier install instructions... i.e. run
the Configure script, build libraries??
On this platform, gcc is recognized - but not g++.  How can I change this?
 
Thanks in advance,
Judy

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