libgcc_s_dw2-1.dll?

[christophe]

how to pass that option to Qt's build system?

You can pass that option with QMAKE_LFLAGS.

With the command line:

qmake QMAKE_LFLAGS+=-static-libgcc -config release

Or adding QMAKE_LFLAGS+=-static-libgcc in your .pro file.

[schnitzel]

You can pass that option with QMAKE_LFLAGS.

With the command line:

qmake QMAKE_LFLAGS+=-static-libgcc -config release

Or adding QMAKE_LFLAGS+=-static-libgcc in your .pro file.

I am seeing this now too all of a sudden after installing the latest Windows Qt SDK 2010.01. Qt configured to dynamic linking, i.e. no change since installation.

I tried the suggested QMAKE_LFLAGS but that was a nogo.

Does this mean I have to add this dll to my installer? If so, then shouldn't this be mentioned in the Application Dependencies on this page:
http://doc.qt.nokia.com/4.6/deployment-windows.html

[schnitzel]

found this:
http://marc.info/?l=mingw-users&w=2&..._dw2-1.dll&q=b
look under 'General Notes' in the first post of that thread.

Deployed apps work after adding this dll, but is it ok for me to distribute it??????

[schnitzel]

this dependency doesn't seem to exist in Qt 4.5.3, so I'm going back to that.

[squidge]

It's part of GCC, not Qt, and yes, it's OK for you to distribute it under the terms of the LGPL. You can also use the linker option "-static-libgcc" to remove the need for the library.

Or, you can use an older version of MinGW. There's no need to use an older version of Qt.

[schnitzel]

It's part of GCC, not Qt, and yes, it's OK for you to distribute it under the terms of the LGPL. You can also use the linker option "-static-libgcc" to remove the need for the library.

Or, you can use an older version of MinGW. There's no need to use an older version of Qt.

My app uses qextserialport, so I rebuilt that with the linker flag. Also I rebuilt my app with the linker flag. Unfortunately, it still complains about the libgcc_s_dw2-1.dll.
When I run depends, the missing dll shows up inside the tree for QtGUI.dll and QtCore4.dll. Does this mean I have to reconfigure Qt with the new linker flag?

[schnitzel]

It's part of GCC, not Qt, and yes, it's OK for you to distribute it under the terms of the LGPL.

according to the discussion in this link it might not be ok:
http://old.nabble.com/distributing-L...d25342619.html

You can also use the linker option "-static-libgcc" to remove the need for the library.

Still haven't made any progress on this, I tried several times no luck.

[squidge]

Yes, you would need to rebuild Qt too for this to work, as that also uses the library.