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Thread: QT + QCA + OpenSSL Plugin + Windows 7

  1. #1
    Join Date
    May 2010
    Posts
    8
    Qt products
    Qt4
    Platforms
    Windows

    Default QT + QCA + OpenSSL Plugin + Windows 7

    Hello,
    I really need your help.
    I have a windows 7 (32 bit) system and use qt 4.6.2 with eclipse CDT Release 3.5.2 and MinGW 5.1.6.

    Now I want to add the QCA crypto libs.
    For that I downloaded:
    - vcredist_x86.exe
    - Win32OpenSSL-0_9_8n.exe
    - qca-2.0.1-mingw.zip
    - qca-ossl-2.0.0-beta3.tar.bz2

    First I installed the Visual C++ 2008 Redistributable Package (vcredist_x86.exe) to install OpenSSL.
    Second I installed OpenSSL to C:\OpenSSL.
    Third I unpacked the qca-2.0.1-mingw.zip to C:\qca-2.0.1-mingw. Then I fixed the crypto.prf.in from this:
    ...
    INCLUDEPATH += $$QCA_INCDIR/QtCrypto
    LIBS += -L$$QCA_LIBDIR
    LINKAGE = -lqca
    CONFIG(debug, debug|release) {
    windows:LINKAGE = -lqcad
    mac:LINKAGE = -lqca_debug
    }
    ...

    to this:
    ...
    INCLUDEPATH += $$QCA_INCDIR/QtCrypto
    LIBS += -L$$QCA_LIBDIR
    LINKAGE = -lqca2
    CONFIG(debug, debug|release) {
    windows:LINKAGE = -lqcad2
    mac:LINKAGE = -lqca_debug
    }
    ...
    because the new qca libs called qca2 and not qca.
    After that I ran the installwin.bat.

    Fourth I unpacked the qca-ossl-2.0.0-beta3.tar.bz2 to C:\qca-ossl-2.0.0-beta3.
    I fixed the qca-ossl.cpp file by adding the line:
    #undef OBJ_whirpool
    Then I ran the configwin.bat like this: configwin rd
    After that I ran qmake and then make.
    At the end I added the directory crypto to the plugins folder of my QT path (C:\Qt\4.6.2\plugins\crypto) and copied the qca-ossl2.dll and qca-ossld2.dll from the qca-ossl-2.0.0-beta3\lib folder to the plugin\crypto folder.

    Everything worked with here. But now I want to use the QCA - libs in my application.
    I wrote a little helloWorld Gui like this:
    Qt Code:
    1. #include "helloworldtestqt.h"
    2. #include <QtGui>
    3. #include <QApplication>
    4. #include <QtCrypto>
    5.  
    6. int main(int argc, char *argv[])
    7. {
    8. QApplication a(argc, argv);
    9. HelloWorldTestQt w;
    10. w.show();
    11. return a.exec();
    12. }
    To copy to clipboard, switch view to plain text mode 
    and created the following pro file:
    TEMPLATE = app
    TARGET = HelloWorldTestQt
    QT += core gui
    HEADERS += helloworldtestqt.h
    SOURCES += main.cpp \
    helloworldtestqt.cpp
    FORMS += helloworldtestqt.ui
    RESOURCES +=
    DEFINES += QT_NO_CAST_FROM_ASCII

    CONFIG += crypto

    but when I compile my application now with eclipse I get the following output (see attachment for more details):
    .......
    ../../Qt/qca-2.0.1-mingw/include/QtCrypto/qca_core.h:882: note: QCA::Provider::Context::Context(QCA::Provider*, const QString&)
    mingw32-make[1]: *** [debug/main.o] Error 1
    mingw32-make[1]: Leaving directory `C:/workspace/HelloWorldTestQt'
    mingw32-make: *** [debug] Error 2

    What did I wrong? Did I forget anything (setting pahtes, variables, ....)?

    Thank you for your help.

    Jenny
    Attached Files Attached Files

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