when linking errors occur while loading plugins, the errors are not displayed correctly

[bradley.kite@…]

dlerror() is called twice if loading a libmythplugin.so fails - the first call clears the error so the actual error displayed doesnt contain the reason.

Patch attached.

[Joe Ripley <vitaminjoe@…>]

I think you forgot to attach the patch file...

-- Joe Ripley vitaminjoe@…

[bradley.kite@…]

display dlerror() correctly

[bradley.kite@…]

Indeed - trac created the ticket before I attached the file - I thought it would only create the ticket once I had attached it...

[Anduin Withers]

(In [15322]) Closes #4422

Stop erasing dlerror() by calling it twice. Missing symbols in plugins will now be displayed.

Patch courtesy of Bradley Kite.

[Simon Kenyon <simon@…>]

methinks this broke the build (well it does on windows) here is the error message:

mythplugin.cpp: In member function `int MythPlugin::init(const char*)':

mythplugin.cpp:39: error: call of overloaded `QString(DWORD)' is ambiguous

C:/MSys/1.0/qt-3.3.x-p8/include/qstring.h:409: note: candidates are:

QString::QString(const std::string&) <near match>

C:/MSys/1.0/qt-3.3.x-p8/include/qstring.h:406: note:

QString::QString(const char*) <near match>

C:/MSys/1.0/qt-3.3.x-p8/include/qstring.h:403: note:

QString::QString(const QByteArray&)

C:/MSys/1.0/qt-3.3.x-p8/include/qstring.h:402: note:

QString::QString(const QString&) <near match>

C:/MSys/1.0/qt-3.3.x-p8/include/qstring.h:401: note:

QString::QString(QChar)

[Nigel]

Working MinGW dlerror() ?

[David Bussenschutt (aka buzz) <davidbuzz@…>]

dlerr.win.patch tested with both SVN 15336 and 15340(HEAD):

./mpegts.o: In function `dlerror': c:/mythtv/mythtv/libs/libavformat/../libmyth/compat.h:205: undefined reference to `sprintf_is_forbidden_due_to_security_issues_use_snprintf' collect2: ld returned 1 exit status

[Nigel]

Use snprintf, include stdio.h

[Nigel]

Verified by Jay Modi. Applied in [15356]

[jaymode@…]

New patch to fix multiple definition errors

[jaymode@…]

Attached patch to fix a multiple definition error of dlerror

[Nigel]

(In [15365]) MinGW C compiler doesn't allow inline functions in C, so disable inline dlerror() there and replace with harmless(?) string. Slightly modified version of patch by Jay Mode. Closes #4422 (again :-)