[Solved] QFtp and qt5 linking problem

[grastvei]

I'm porting a program from qt 4.8 to qt 5.1 and it uses QFtp.

[JKSH]

I see.

Try subscribing to the "Interest mailing list":http://lists.qt-project.org/mailman/listinfo/interest and asking your question there -- Qt's engineers are active on that list and they'll have better inside knowledge about these compatibility modules.

[grastvei]

the shared library QtFtp created a prl file. I added this file:
@CONFIG -= create_prl@
And now it works as expected.

[darbor]

Hello
In my case i not seeing

#include <QtFtp> or <QFtp>

but only

#include <QtFtp/QtFtpDepends>

[grastvei]

I compiled qftp into a shared library and linked the main application to the library.

this is the .pro file for qftp
@load(qt_build_config)
Template = lib
TARGET = QtFtp
CONFIG += shared
CONFIG -= create_prl
QT = core network
CONFIG += no_install_prl
MODULE_PRI = ../../modules/qt_ftp.pri
MODULE = ftp

load(qt_module)

Input

HEADERS += qftp.h qurlinfo.h
SOURCES += qftp.cpp qurlinfo.cpp
@

[darbor]

I have install QT 5.1.1
download from git https://qt.gitorious.org/qt/qtftp

extract to:
C:\Qt\5.1.1\5.1.1\Src\qt-qtftp

edit qftp.pro
@
load(qt_build_config)
Template = lib
TARGET = QtFtp
CONFIG += shared
CONFIG -= create_prl
QT = core network
CONFIG += no_install_prl
MODULE_PRI = ../../modules/qt_ftp.pri
MODULE = ftp

load(qt_module)

Input

HEADERS += qftp.h qurlinfo.h
SOURCES += qftp.cpp qurlinfo.cpp"@

go to VC console.

cd c:\Qt\5.1.1\5.1.1\Src\qt-qtftp\src\qftp
qmake qftp.pro
nmake
nmake install

after when I run examples from git qtftp i have this error

C:\Qt\5.1.1\5.1.1\msvc2010_opengl\examples\network\qftp\ftpwindow.cpp:43: błąd:C1083: Cannot open include file: 'QtFtp': No such file or directory

[grastvei]

I included qftp.h from library I build.

[darbor]

Could you point me step by step how to do this.
I am a beginner programmer QT.

I copy qftp.h and qurlinfo.h to ftp example project,
and
add to qftp.pro
line HEADERS += qftp.h qurlinfo.h

but when i run project i have many errors like:

C:\Qt\5.1.1\5.1.1\msvc2010_opengl\examples\network\build-qftp-Desktop_Qt_5_1_1_MSVC2010_32bit_OpenGL-Debug\debug\moc_qftp.cpp:125: błąd:C2027: use of undefined type
'QFtpPrivate'
c:\qt\5.1.1\5.1.1\msvc2010_opengl\examples\network\qftp\qftp.h:51: see declaration of 'QFtpPrivate'
...

first error go to
case 9: _t->d->_q_startNextCommand(); break;

[grastvei]

I can write more details about how to do this after work.

[darbor]

Hello
It's work

1. build source qt-qtftp
   qmake /Src/qt-qtftp/src/src.pro
   nmake
   nmake install

after
change in qt-qtftp/src/qftp/qftp.pro

@ CONFIG -= static
CONFIG += shared@

and compile again

in lib a have now
c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftp.dll
c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.dll
c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftp.lib
c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.lib
c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.pdb
c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftp.prl
c:\Qt\5.1.1\5.1.1\msvc2010_opengl\lib\Qt5Ftpd.prl

2. create file in directory
   c:\Qt\5.1.1\5.1.1\msvc2010_opengl\include\QtNetwork
   QFtp
   and inside add
   @#include "qftp.h"@

3. copy from source two file
   qftp.h and qurlinfo.h to includes\QtNetwork\

4. in my project add
   @LIBS += Qt5Ftp.lib@
   and
   @QT += ftp@

and project finaly build and run:) jupiiii

[JKSH]

Thank you for sharing your solution!

[cygnus2k]

Hello, I'm on Linux and I have the same problem. Compile the module as shared and static and in no way I can compile the examples. When you modified the .pro filedo not miss you put a -L parameter?

[Dacown]

hi,
doesn't fit 100% to the theme, but I have tried it according to the instructions, but with the Creator.
The compilation works so far. However I have 3 problems:

cd qftp\ && C:\Qt\5.14.0\mingw73_32\bin\qmake.exe -o Makefile C:\Qt\qt-everywhere-src-5.14.0\qtbase\src\qtftp\examples\qftp\qftp.pro -spec win32-g++ "CONFIG+=qtquickcompiler"
Project ERROR: C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/qtftp/examples/qftp/qftp.pro installs target to unexpected location.
mingw32-make[1]: *** [Makefile:43: sub-qftp-qmake_all] Error 3
mingw32-make[1]: Leaving directory 'C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/build-qtftp-Desktop_Qt_5_14_0_MinGW_32_bit-Release/examples'
mingw32-make: *** [C:/Qt/qt-everywhere-src-5.14.0/qtbase/src/build-qtftp-Desktop_Qt_5_14_0_MinGW_32_bit-Release/Makefile:71: sub-examples-qmake_all] Error 2

i simply removed module_qtftp_examples
I don't know if this is OK but now the compilation is running. And since they are only examples I think I should not have any problems.

Cannot read C:/../../tests/auto/other/headersclean/headersclean.pri: No such file or directory

i have no solution for this, but i don't know if my mistakes result from this.

after compiling I only have the following files
libQt5Ftp.a
Qt5Ftp.dll
Qt5Ftp.dll.debug

but I still need
libQt5Ftpd.a
Qt5Ftpd.dll
but they're not made, so can anyone help me?

[mrjj]

@Dacown
Hi
The names with d in the end - is normally the debug versions and
you are building in release mode so why you think you also need them ?
For debugging ?
Try build in debug mode and see.

[Dacown]

Hi,
yes i think i need it for debugging, is that wrong ?
OK i will try it.

[Dacown]

OK,
i just tried it:

C:/Qt/Tools/mingw730_32/bin/../lib/gcc/i686-w64-mingw32/7.3.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lQt5Ftpd
collect2.exe: error: ld returned 1 exit status

[mrjj]

@Dacown
Hi
Did you build both things in Debug then ?

[Dacown]

@mrjj
I have compiled the QFtp once in release mode and once in debug mode.
I only got the files in each case:
libQt5Ftp.a
Qt5Ftp.dll

C:/Qt/Tools/mingw730_32/bin/../lib/gcc/i686-w64-mingw32/7.3.0/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lQt5Ftpd
collect2.exe: error: ld returned 1 exit status

the error i get now is from a project that was running with QFtp before. i have now installed the latest QT version and wanted to include QFTP there again so i can continue using the project.
I have tried to compile this project in debug modus

[mrjj]

@Dacown

You get this error when you try to use the Qt5Ftp from your app right ?

[Dacown]

@mrjj
yes if i try to compile it.

I have tried now to compile QFTP on a other system.
There it works i get the 4 files.

Now i have test to compile my project on this machine, i have the same error.