Mini2440, UBUNTU, ARM-LINUX-GCC: ld: cannot find -lqtopia2

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Hello everybody!
I'm a new user of UBUNTU, FORUM, and Mini2440 Platform.

I known all 2 mounth ago and I must develop with this.

I have a problem: I can't start beacause I never compile example project
"Hello".

I have done a virtual machine with Virtual Box on Windows7 64bit and I have
install and upgrade UBUNTU 11.10.

With terminal I try to compile the "Hello" example from CD and I read so:

ubuntu@ubuntu-VirtualBox:~$ cd
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/hello
ubuntu@ubuntu-VirtualBox:~/opt/FriendlyARM/mini2440/arm-qtopia/hello$ ls
build description-pak hello.cpp hello.h hello.pro.user Makefile
copia hello_base.ui hello.desktop hello.pro main.cpp
ubuntu@ubuntu-VirtualBox:~/opt/FriendlyARM/mini2440/arm-qtopia/hello$
./build
rm -f .obj/release-shared/moc_hello_base.o
rm -f .moc/release-shared/moc_hello_base.cpp
rm -f .ui/release-shared/hello_base.cpp .ui/release-shared/hello_base.h
rm -f .obj/release-shared/hello.o .obj/release-shared/main.o
.obj/release-shared/hello_base.o
rm -f *~ core *.core
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qt2/bi
n/uic
hello_base.ui -o .ui/release-shared/hello_base.h
/home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++ -c -pipe
-DQWS -fno-exceptions -fno-rtti -Wall -W -Os -DQT_NO_QWS_VFB
-DQTOPIA_DATA_LINKING -DQCONFIG="qconfig-qpe.h" -DQTOPIA_TARGET="hello"
-DQTOPIA_TRTARGET="hello" -DQT_NO_DEBUG
-I/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtop
ia/mkspecs/qws/linux-arm-g++
-I. -I../qtopia-2.2.0-FriendlyARM/qtopia/include
-I../qtopia-2.2.0-FriendlyARM/qt2/include -I.ui/release-shared/
-I.moc/release-shared/ -o .obj/release-shared/hello.o hello.cpp
/home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++ -c -pipe
-DQWS -fno-exceptions -fno-rtti -Wall -W -Os -DQT_NO_QWS_VFB
-DQTOPIA_DATA_LINKING -DQCONFIG="qconfig-qpe.h" -DQTOPIA_TARGET="hello"
-DQTOPIA_TRTARGET="hello" -DQT_NO_DEBUG
-I/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtop
ia/mkspecs/qws/linux-arm-g++
-I. -I../qtopia-2.2.0-FriendlyARM/qtopia/include
-I../qtopia-2.2.0-FriendlyARM/qt2/include -I.ui/release-shared/
-I.moc/release-shared/ -o .obj/release-shared/main.o main.cpp
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qt2/bi
n/uic
hello_base.ui -i hello_base.h -o .ui/release-shared/hello_base.cpp
/home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++ -c -pipe
-DQWS -fno-exceptions -fno-rtti -Wall -W -Os -DQT_NO_QWS_VFB
-DQTOPIA_DATA_LINKING -DQCONFIG="qconfig-qpe.h" -DQTOPIA_TARGET="hello"
-DQTOPIA_TRTARGET="hello" -DQT_NO_DEBUG
-I/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtop
ia/mkspecs/qws/linux-arm-g++
-I. -I../qtopia-2.2.0-FriendlyARM/qtopia/include
-I../qtopia-2.2.0-FriendlyARM/qt2/include -I.ui/release-shared/
-I.moc/release-shared/ -o .obj/release-shared/hello_base.o
.ui/release-shared/hello_base.cpp
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qt2/bi
n/moc
.ui/release-shared/hello_base.h -o .moc/release-shared/moc_hello_base.cpp
/home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++ -c -pipe
-DQWS -fno-exceptions -fno-rtti -Wall -W -Os -DQT_NO_QWS_VFB
-DQTOPIA_DATA_LINKING -DQCONFIG="qconfig-qpe.h" -DQTOPIA_TARGET="hello"
-DQTOPIA_TRTARGET="hello" -DQT_NO_DEBUG
-I/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtop
ia/mkspecs/qws/linux-arm-g++
-I. -I../qtopia-2.2.0-FriendlyARM/qtopia/include
-I../qtopia-2.2.0-FriendlyARM/qt2/include -I.ui/release-shared/
-I.moc/release-shared/ -o .obj/release-shared/moc_hello_base.o
.moc/release-shared/moc_hello_base.cpp
/home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++ -o hello
.obj/release-shared/hello.o .obj/release-shared/main.o
.obj/release-shared/hello_base.o .obj/release-shared/moc_hello_base.o
-luuid -lqtopia2 -lqtopia -lqpe
-L/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtop
ia/lib
-L/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qt2/
lib
-lqte
/home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/../lib/gcc/arm-none-linux-gnue
abi/4.4.3/../../../../arm-none-linux-gnueabi/bin/ld:
cannot find -lqtopia2
collect2: ld returned 1 exit status
make: *** [hello] Errore 1

There is somebody to help me?
Thank you so much!
Fede.

msx_br

You must have the qtopia libs in one of the folders listed by (type in your ubuntu terminal):

@echo $LD_LIBRARY_PATH@

You can find where the qtopia is installed by typing:

@
sudo updatedb
locate libqtopia
@

? Offline

Hi!
First of all, thank you very much for your reply!

Now I try your code from terminal and I have this:
@
ubuntu@ubuntu-VirtualBox:~$ echo $LD_LIBRARY_PATH

ubuntu@ubuntu-VirtualBox:~$ sudo updatedb
ubuntu@ubuntu-VirtualBox:~$ locate libqtopia
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtopia/lib/libqtopia.prl
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtopia/lib/libqtopia2.prl
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtopia/lib/libqtopiacalc.prl
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia.so
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia.so.1
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia.so.1.6
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia.so.1.6.3
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia2.so
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia2.so.2
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia2.so.2.1
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopia2.so.2.1.0
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopiacalc.so
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopiacalc.so.2
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopiacalc.so.2.2
/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/libqtopiacalc.so.2.2.0
@

Now what can I do?

If can help, this is "qmake.conf" file:
---PATH:
/home/ubuntu/opt/FriendlyARM/mini2440/arm-qtopia/qtopia-2.2.0-FriendlyARM/qtopia/mkspecs/qws/linux-arm-g++/qmake.conf
---CONTENT:
@

$Id$

qmake configuration for linux-g++ using the arm-linux-g++ crosscompiler

MAKEFILE_GENERATOR = UNIX
TEMPLATE = app
CONFIG += qt link_prl

QMAKE_CC = /home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-gcc
QMAKE_LEX = flex
QMAKE_LEXFLAGS =
QMAKE_YACC = yacc
QMAKE_YACCFLAGS = -d
QMAKE_CFLAGS = -pipe
QMAKE_CFLAGS_WARN_ON = -Wall -W
QMAKE_CFLAGS_WARN_OFF =
QMAKE_CFLAGS_RELEASE = -Os
QMAKE_CFLAGS_DEBUG = -g
QMAKE_CFLAGS_SHLIB = -fPIC
QMAKE_CFLAGS_YACC = -Wno-unused -Wno-parentheses
QMAKE_CFLAGS_THREAD = -D_REENTRANT

QMAKE_CXX = /home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++
QMAKE_CXXFLAGS = $$QMAKE_CFLAGS -DQWS -fno-exceptions -fno-rtti
QMAKE_CXXFLAGS_WARN_ON = $$QMAKE_CFLAGS_WARN_ON
QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE
QMAKE_CXXFLAGS_DEBUG = $$QMAKE_CFLAGS_DEBUG
QMAKE_CXXFLAGS_SHLIB = $$QMAKE_CFLAGS_SHLIB
QMAKE_CXXFLAGS_YACC = $$QMAKE_CFLAGS_YACC
QMAKE_CXXFLAGS_THREAD = $$QMAKE_CFLAGS_THREAD

QMAKE_INCDIR =
QMAKE_LIBDIR =
QMAKE_INCDIR_X11 =
QMAKE_LIBDIR_X11 =
QMAKE_INCDIR_QT = $(QTDIR)/include
QMAKE_LIBDIR_QT = $(QTDIR)/lib
QMAKE_INCDIR_OPENGL = /usr/X11R6/include
QMAKE_LIBDIR_OPENGL = /usr/X11R6/lib
QMAKE_INCDIR_QTOPIA = $(QPEDIR)/include
QMAKE_LIBDIR_QTOPIA = $(QPEDIR)/lib

QMAKE_LINK = /home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++
QMAKE_LINK_SHLIB = /home/ubuntu/opt/FriendlyARM/toolschain/4.4.3/bin/arm-linux-g++
QMAKE_LFLAGS =
QMAKE_LFLAGS_RELEASE =
QMAKE_LFLAGS_DEBUG =
QMAKE_LFLAGS_SHLIB = -shared
QMAKE_LFLAGS_PLUGIN = $$QMAKE_LFLAGS_SHLIB
QMAKE_LFLAGS_SONAME = -Wl,-soname,
QMAKE_LFLAGS_THREAD =
QMAKE_RPATH = -Wl,-rpath,

QMAKE_LIBS =
QMAKE_LIBS_DYNLOAD = -ldl
QMAKE_LIBS_X11 =
QMAKE_LIBS_X11SM =
QMAKE_LIBS_QT = -lqte
QMAKE_LIBS_QT_THREAD = -lqte-mt
QMAKE_LIBS_QT_OPENGL = -lqgl
QMAKE_LIBS_QTOPIA = -lqtopia -lqpe
QMAKE_LIBS_THREAD = -lpthread

QMAKE_MOC = $(QTDIR)/bin/moc
QMAKE_UIC = $(QTDIR)/bin/uic

QMAKE_AR = ar cqs
QMAKE_RANLIB =

QMAKE_TAR = tar -cf
QMAKE_GZIP = gzip -9f

QMAKE_COPY = cp -f
QMAKE_MOVE = mv -f
QMAKE_DEL_FILE = rm -f
QMAKE_DEL_DIR = rmdir
QMAKE_STRIP = arm-linux-strip
QMAKE_STRIPFLAGS_LIB = --strip-unneeded -R .note -R .comment
QMAKE_CHK_DIR_EXISTS = test -d
QMAKE_MKDIR = mkdir -p

QMAKE_ARCH = arm

exists($$(QPEDIR)/src/config.pri):include($$(QPEDIR)/src/config.pri)
@

msx_br

Your problem is linking, the compiler (linux-arm-g++) can't find the libqtopia2.so.

The "echo $LD_LIBRARY_PATH" show the current "dynamic libraries available for linking", as you can see in your post (May 2, 2012) the echo $LD_LIBRARY_PATH command reports nothing.

Try to type ih the ubuntu terminal:

@
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/ubuntu/opt/FriendlyARM/mini2440/rootfs_qtopia_qt4/opt/Qtopia/lib/

sudo ldconfig
@

In your post (may 1, 2012) the compiler can't find libqtopia: "cannot find -lqtopia2"
With the above "export", the compiler will be able to link your program with libqtopia.

Useful links:

"qmake manual":http://doc.trolltech.com/4.6/qt-embedded-linux.html
"Cross compiling Qt for embedded":http://doc.trolltech.com/4.6/qt-embedded-crosscompiling.html
"Qt Embedded for Linux":http://doc.trolltech.com/4.6/qt-embedded-linux.html

? Offline

Hi Fedeponte, if you want to develop a program for mini2440, you can reference here: http://mini2440vietnam.blogspot.com/2011/05/programming-application-for-mini2440-by.html
good luck