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List:       fink-users
Subject:    [Fink-users] qmake broken (Was Re: link issue for qtpfsgui-mac on
From:       Martin Costabel <costabel () wanadoo ! fr>
Date:       2010-03-06 2:08:08
Message-ID: 4B91B908.4050409 () wanadoo ! fr
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Martin Costabel wrote:
> Pascal Lamboley wrote:
>> Hi all,
>>
>> Compiling qtpfsgui-mac on my PPC machines, I get :
>> g++-4.0 -headerpad_max_install_names -arch ppc -o qtpfsgui.app/ 
> []
>> qrc_icons.o   -F/sw/lib/qt4-mac/lib -L/sw/lib/qt4-mac/lib -lexiv2 - 
>> lIlmImf -lImath -lHalf -lIex -lfftw3f -lm -ltiff -lIlmThread -L/sw/ 
>> lib -ljpeg -lexpat -framework QtGui -L/sw/lib/system-openssl/lib -L/ 
>> sw/lib/freetype219/lib -L/sw/lib/fontconfig2/lib -L/usr/X11R6/lib -L/ 
>> sw/lib/qt4-mac/lib -F/sw/lib/qt4-mac/lib -Wl,-framework,QtCore - 
>> framework QtCore -liconv
>> /usr/libexec/gcc/powerpc-apple-darwin8/4.0.1/ld: Undefined symbols:
>> _compress
>> _uncompress
> 
> There is a "-lz" missing. This is probably a bug in the new qt4-mac 
> package. With qt4-mac-4.5.2-2 installed, there is no such problem, -lz 
> shows up on the linker line (and some other additional necessary libs 
> like -lpng, too).

I can confirm this now: With the new qt4-mac installed, qmake produces a 
defective Makefile with missing libraries. When I replace the file

/sw/lib/qt4-mac/lib/QtGui.framework/QtGui.prl

in qt4-mac-4.6.2-2 by the one from an older qt4-mac-4.5.2-2, then the 
above error does not happen, and qtpfsgui-mac builds OK.

I suspect that this is not a problem with the new qt4 version, but a 
result of Fink's *.la-file cleaning policy. I think qmake uses 
dependency_libs fields from some *.la files to construct the 
QMAKE_PRL_LIBS variable, which it then puts into the Makefile.

If my suspicion is right, then putting the right libraries back into 
that variable will require a major coding effort.

-- 
Martin

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