Hi, In Debian/Ubuntu, we received some bug reports ([1], [2], [3]) stating that compiling QtWebKit apps fails with ld errors like this one:
/usr/bin/ld: cannot find -lgstapp-0.10
/usr/bin/ld: cannot find -lgstinterfaces-0.10
...
After digging the problem, we found out that the reason is .prl files,
especially libQt5WebKitWidgets.prl which has this line (see [4]):
QMAKE_PRL_LIBS = -lX11 -lxslt -lgio-2.0 -lgstapp-0.10 -lgstinterfaces-0.10
[...]
I think it is wrong because none of QtWebKit public headers refers to
xslt or gstreamer.
Is it a bug in qmake, and if yes, can it be fixed or should we change our .prl
files downstream?
A similar issue is in libQt5Multimedia{,Widgets}.prl files, which have "-lpulse"
flag.
Also, some files have multiple occurences of the same flag, i.e.
libQt5WebKit.prl has "-lpthread" flag 6 times.
[1]: http://bugs.debian.org/711307
[2]: https://bugs.launchpad.net/bugs/1134745
[3]: https://bugs.launchpad.net/bugs/1165250
[4]: http://paste.debian.net/27129/
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