[issue44] pinentry: compiling pinentry-qt fails with multiple qt installations

New submission from Bernhard Herzog <[email protected]>:

Compiling pinentry-qt fails for me with a linker error because it linking picks
up the wrong library.

There are at least two qt installations on the system. One in a directory
searched by default by ld and another in a non-standard directory.  The one in
the non-standard directory is the one I need to link against.

The problem lies in configure.  Configure correctly identifies the location and
flags for my non-standard installation:

checking for Qt... libraries /usr/local/aegypten//lib, headers
/usr/local/aegypten//include using -mt


It then checks whether qt can be used without flags:

checking if Qt compiles without flags... yes


This test is successful because there's a qt installation in a standard place,
but of course it's not the one I need to link against.

When linking pinentry-qt it doesn't include the right -L flag and I get linker
errors. E.g.:

g++ -DQT_THREAD_SUPPORT  -I/usr/X11R6/include -D_REENTRANT -g -O2   -o
pinentry-qt -L/usr/X11R6/lib secqstring.o secqinternal.o secqlineedit.o
pinentrydialog.o main.o secqlineedit.moc.o pinentrydialog.moc.o -lqt-mt  -lSM
-lICE -lXext -lX11  -lpthread ../pinentry/libpinentry-curses.a -lncurses 
../pinentry/libpinentry.a ../assuan/libassuan.a ../secmem/libsecmem.a  
secqlineedit.o: In function `SecQLineEditPrivate::~SecQLineEditPrivate(void)':
/local-vol1/projects/kde3.2-aegypten/qt-x11-free-3.2.3/include/qvaluevector.h(.text+0x11b):
undefined reference to `QTextLayout::QTextLayout(void)'


I was able to work around this problem by hacking configure so that the test
whether qt needs flags fails.

----------
assignedto: werner
messages: 148
nosy: bh, werner
priority: bug
status: unread
title: pinentry: compiling pinentry-qt fails with multiple qt installations
topic: pinentry
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