Re: [Mingw-w64-public] cross compiling with static Qt libraries

[xunxun <xun...@gm...>]

于 2012/7/4 17:41, jan van katwijk 写道:
> Dear list
>
> I have an SDR application with Qt developed under Linux 
> (Fedora/ubuntu). It does run under windows (vista/w7) using mingw/Qt.
> I am preparing a windows distribution with - as much as possible - 
> statically bound libraries
> I installed Fedora 17 and the - excellent - cross compilation tools 
> for mingw64. It was surprisingly simple to
> generate an executable using dynamically bound libs, however, when 
> trying to create an executable with static binding
> for the most important (i.e. QtGui etc) libs, there are linking 
> problems: apparently the references from the Qt libs to some windows libs
> cannot be resolved.
> It seems I have to specify some additional libs to be used in the 
> linking process, but I am completely lost.
> This is the result of the linkage step:
>
> x86_64-w64-mingw32-g++ -static -Wl,-s -Wl,-subsystem,console -mthreads 
> -o release/spectrum-viewer.exe object_script.spectrum-viewer.Release 
> -L'/usr/x86_64-w64-mingw32/sys-root/mingw/lib' 
> /home/jan/cross-compiling/dll_64/libfftw3-3.lib 
> /home/jan/cross-compiling/qwt-5.2.2/lib/libqwt.a -lole32 -lwinmm 
> -lstdc++ -lusb-1.0 -lQtGui4 -lQtCore4
> /usr/x86_64-w64-mingw32/sys-root/mingw/lib/libQtGui4.a(qapplication.o):(.text+0x1824): 
> undefined reference to `__imp_CoCreateGuid'
> /usr/x86_64-w64-mingw32/sys-root/mingw/lib/libQtGui4.a(qapplication.o):(.text+0x1849): 
> undefined reference to `__imp_StringFromGUID2'\
You should add -lole32
> /usr/lib64/gcc/x86_64-w64-mingw32/4.7.0/../../../../x86_64-w64-mingw32/bin/ld: 
> /usr/x86_64-w64-mingw32/sys-root/mingw/lib/libQtGui4.a(qapplication.o): bad 
> reloc address 0x0 in section `.data'
> /usr/lib64/gcc/x86_64-w64-mingw32/4.7.0/../../../../x86_64-w64-mingw32/bin/ld: 
> final link failed: Invalid operation
> collect2: error: ld returned 1 exit status
> make[1]: *** [release/spectrum-viewer.exe] Error 1
>
> When I add in the makefile -lole32 at the end of the link command 
> line, these specific references disappear and some new ones do appear:
>
> make -f Makefile.Release
> make[1]: Entering directory 
> `/home/jan/cross-compiling/jsdr-3.04/spectrum-viewer'
> x86_64-w64-mingw32-g++ -static -Wl,-s -Wl,-subsystem,console -mthreads 
> -o release/spectrum-viewer.exe object_script.spectrum-viewer.Release 
> -L'/usr/x86_64-w64-mingw32/sys-root/mingw/lib' 
> /home/jan/cross-compiling/dll_64/libfftw3-3.lib 
> /home/jan/cross-compiling/qwt-5.2.2/lib/libqwt.a -lole32 -lwinmm 
> -lstdc++ -lusb-1.0 -lQtGui4 -lQtCore4 -lole32
> /usr/x86_64-w64-mingw32/sys-root/mingw/lib/libQtGui4.a(qfont.o):(.text+0xc1b): 
> undefined reference to `__imp_GetDeviceCaps'
> /usr/x86_64-w64-mingw32/sys-root/mingw/lib/libQtGui4.a(qfont.o):(.text+0xc5b): 
> undefined reference to `__imp_GetDeviceCaps'
You should add -lgdi32
> /usr/lib64/gcc/x86_64-w64-mingw32/4.7.0/../../../../x86_64-w64-mingw32/bin/ld: 
> /usr/x86_64-w64-mingw32/sys-root/mingw/lib/libQtGui4.a(qfont.o): bad 
> reloc address 0x0 in section `.data'
> /usr/lib64/gcc/x86_64-w64-mingw32/4.7.0/../../../../x86_64-w64-mingw32/bin/ld: 
> final link failed: Invalid operation
> collect2: error: ld returned 1 exit status
> make[1]: *** [release/spectrum-viewer.exe] Error 1
> make[1]: Leaving directory 
> `/home/jan/cross-compiling/jsdr-3.04/spectrum-viewer'
> make: *** [release] Error 2
>
> No idea where to find GetDeviceCaps, and no idea how to specify the 
> ".pro"  file for Qt such that it includes the libraries needed in the 
> right order
Try

LIBS += -lole32 -lgdi32

> any help is greatly appreciated
>
> best
>
> -- 
> Jan van Katwijk
>
>
> +31 (0)15 3698980
> +31 (0) 628260355
>
>


-- 
Best Regards,
xunxun