[Interest] How do I use qextserialport as a library?

[1+1=2]

Hi Robert,

Seems that the shared library you used is an old version of QextSerialPort.
Maybe it is generated by the QextSerialPort which you download form
code.google.com/p/qextsrialport before March 2012. Or maybe it
generated by a old qextserialport.tar.gz.

If you did not change following files
qextserialport.pri/common.pri/buildlib.pro, the shared library of
qextserialport-1.2beta1 will be libqextserialport-1.2.so(.1.*), and
add it will be located in
the subdirectory of qextserialport's toplevel directory.

|- qextserialport.pro
|- common.pro
|- buildlib/buildlib.pro
|- src/qextserialport.pri
|-
|- lib/libqextserialport-1.2.so

Hope this is useful for you.

Regards,

Debao

On Mon, Mar 19, 2012 at 3:24 AM, Robert Wood
<robert.wood at apostrophe.co.uk> wrote:
> Hi Debao,
>
> Many thanks, that's very good of you.
>
> I am obviously missing something fundamental here as having knocked up a
> very simple test program and modding my .pro as follows:
>
> QEXTSERIALPORT_LIBDIR = /usr/lib/
> QEXTSERIALPORT_INCDIR =/usr/include/
>
>
> QT       += core gui
>
> TARGET = SharedSerial
> TEMPLATE = app
>
>
> SOURCES += main.cpp\
>         mainwindow.cpp \
>     uart.cpp
>
> HEADERS  += mainwindow.h \
>     uart.h \
>     defines.h
>
> FORMS    += mainwindow.ui
>
> QEXTSERIALPORT_LIBNAME = $$qtLibraryTarget(qextserialport-1.2)
>
> INCLUDEPATH += QEXTSERIALPORT_INCDIR
> LIBS += -L$$QEXTSERIALPORT_LIBDIR -l$$QEXTSERIALPORT_LIBNAME
> DEFINES += QEXTSERIALPORT_USING_SHARED
>
>
> I get the error:
>
> :-1: error: cannot find -lqextserialport-1.2
>
> I am guessing that these double dollar signs have to be changed. My
> /usr/lib directory has:
>
> /usr/lib/libqextserialport.so
> /usr/lib/libqextserialport.so.1
> /usr/lib/libqextserialport.so.1.2
> /usr/lib/libqextserialport.so.1.2.0
>
> If that's of any help.
>
> I'm guessing I'm doing something very naive or stupid! I'm an embedded
> hardware and software engineer dealing in bits and bytes most of the
> time and really struggle with this stuff!
>
> Thanks again.
>
>
>
> On 18/03/12 23:17, 1+1=2 wrote:
>> Hi Robert,
>>
>> I have updated the wiki page:
>> http://code.google.com/p/qextserialport/wiki/QextSerialPort_1_2_Beta1
>>
>> "How to use (3)" discusses how to use QextSerialPort as shared library
>> without adding "include(*****/qextserialport.pri)" to .pro file.
>> And of course, in a cross platform way.
>>
>> Hope this can help you.
>>
>> If this is still refuse to work,feel free to report bugs.
>>
>> Regards,
>>
>> Debao
>>
>> On Sun, Mar 18, 2012 at 9:52 AM, Robert Wood
>> <robert.wood at apostrophe.co.uk>  wrote:
>>> \Folks,
>>>
>>> I've used qextserialport many times, but always included the source code
>>> in the my project. However, the it says it's better to use it as a
>>> library and it would be nice not to include all those source files each
>>> time.
>>>
>>> However, I can't work out how to do this.
>>>
>>> I've downloaded the source, gone into the buildlib directory, done qmake
>>> and make (as root) after uncommenting QEXTSERIALPORT_LIBRARY = yes.
>>>
>>> I get thie following in /usr/lib
>>>
>>> -rwxr-xr-x 1 root root 456104 Oct  9 21:19 libqextserialport.so*
>>> -rwxr-xr-x 1 root root 456104 Oct  9 21:19 libqextserialport.so.1*
>>> -rwxr-xr-x 1 root root 456104 Oct  9 21:19 libqextserialport.so.1.2*
>>> -rwxr-xr-x 1 root root 456104 Oct  9 21:19 libqextserialport.so.1.2.0*
>>>
>>> I've put this in the .pro file:
>>>
>>> LIBS  += /usr/lib/libqextserialport.so
>>>
>>> Tried all sorts with #include and to be on the safe side:
>>>
>>> #include "/home/robertw/Software/qextserialport/src/qextserialport.h"
>>> where the include file definitely is.
>>>
>>>
>>> When I try to compile I get:
>>>
>>> /home/robertw/Software/Qt4/ltc1760-build-desktop/../ltc1760/ltc1760.cpp:66:
>>> error: undefined reference to `QextSerialPort::QextSerialPort(QString
>>> const&, QextSerialPort::QueryMode, QObject*)'
>>>
>>>
>>> For this line:
>>>
>>>          vcp = new QextSerialPort(s);
>>>
>>> This is exactly how I open a port when I include the source, so this
>>> line is not wrong (s is a string of its name).
>>>
>>> Would someone be able to advise what I'm doing wrong please?
>>>
>>> Thanks! :~)
>>> _______________________________________________
>>> Interest mailing list
>>> Interest at qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
>>
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