[kde-freebsd] A bug in QtCore.pc or qglobal.h?

[Jeremy Messenger]

On Sun, 22 Jun 2008 03:34:04 -0500, Max Brazhnikov <makc at issp.ac.ru> wrote:

> On Sun, 22 Jun 2008 01:18:13 -0500, Jeremy Messenger wrote:
>> On Sat, 21 Jun 2008 14:04:08 -0500, Max Brazhnikov <makc at issp.ac.ru>  
>> wrote:
>> > On Sat, 21 Jun 2008 11:20:38 -0500, Jeremy Messenger wrote:
>> >> Hello folks,
>> >>
>> >> I am wondering if there is a bug in QtCore.pc for not have
>> >> -I/usr/local/include or qglobal.h for should be '#include
>> >> <QtCore/qconfig.h>' -> '#include <qconfig.h>'? A simple test.cc  
>> failed
>> >> to
>> >> compile unless I add -I/usr/local/include.
>> >>
>> >> -------------------------------------
>> >> # cat test.cc
>> >> #include <cstdio>
>> >> #include <QtGlobal>
>> >> extern "C" int main(void)
>> >> {
>> >>    printf("found version %s", QT_VERSION_STR);
>> >> #if QT_VERSION >= 0x040200
>> >>    printf(", OK.\n");
>> >>    return 0;
>> >>    printf(", expected version 4.2.0 or higher\n");
>> >>    return 1;
>> >> #endif
>> >> }
>> >> -------------------------------------
>> >>
>> >> -------------------------------------
>> >> # c++ -O -Wall -o test test.cc `pkg-config QtCore --cflags --libs`
>> >> In file included from /usr/local/include/QtCore/QtGlobal:1,
>> >>                   from test.cc:2:
>> >> /usr/local/include/QtCore/qglobal.h:62:28: error: QtCore/qconfig.h:  
>> No
>> >> such file or directory
>> >> /usr/local/include/QtCore/qglobal.h:942:31: error:  
>> QtCore/qfeatures.h:
>> >> No
>> >> such file or directory
>> >> /usr/local/include/QtCore/qglobal.h:1139:4: error: #error "Qt not
>> >> configured correctly, please run configure"
>> >> /usr/local/include/QtCore/qglobal.h:2036:6: error: #error "Qt not
>> >> configured correctly, please run configure"
>> >> -------------------------------------
>> >>
>> >> The solution is to add -I/usr/local/include.
>> >>
>> >> -------------------------------------
>> >> # c++ -O -Wall -o test test.cc `pkg-config QtCore --cflags --libs`
>> >> -I/usr/local/include
>> >> # ./test
>> >> found version 4.3.4, OK.
>> >> -------------------------------------
>> >>
>> >> -------------------------------------
>> >> # pkg-config QtCore --cflags --libs
>> >> -DQT_SHARED -I/usr/local/include/QtCore  -pthread -L/usr/local/lib
>> >> -lQtCore -lz -lm -lgthread-2.0 -lglib-2.0 -liconv
>> >> -------------------------------------
>> >>
>> >> BTW: Please add me in CC.
>> >>
>> >> Cheers,
>> >> Mezz
>> >
>> > /usr/local/include was removed (incorrectly) from Qt*.pc. The problem  
>> is
>> > that
>> > qt3 installs headers (one of them is qconfig.h) to /usr/local/include
>> > and
>> > this sometimes confuses qt4 ports.
>>
>> I have both qt3 and qt4 installed, and I don't have any problem. I think
>> it's matter of order. Does qt4 still has problem even if it has
>> /usr/local/include in the last order? Like this:
>>
>> -I/usr/local/include/QtCore -I/usr/local/include
> This might break some qt4-dependent ports, if their include path will be  
> like
> -I/usr/local/include/QtCore -I/usr/local/include  
> -I/usr/local/include/QtGui

Good point, I see that. I am surpised about that QT developers don't fix  
this problem. I wouldn't put '#include <QtCore/*.h>' in many headers if  
they are living in include/QtCore/ already and have *.pc point to  
/usr/local/include/QtCore will cover it.

>> I believe that it needs to be fix in *.pc files. The qt3 doesn't has
>> QtCore, so I think it should be no problem.
> the fix is needed indeed, moving qt3 headers out from /usr/local/include  
> will help

Sounds good.

Cheers,
Mezz


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FreeBSD GNOME Team
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