Qt-interest Archive, August 2007
Bug in qmake 4.3?
Message 1 in thread
Hi there,
I think there is a bug in qmake in Qt 4.3. I try to compile Qt 4.3 from
the command line with VC++ 2005 Express. If I use:
configure -debug
everything is ok. But if I add the option "-dont-process":
configure -dont-process -debug
and then manually call qmake before nmake:
bin\qmake
qmake generates incorrect makefiles for nmake. Open the root Makefile in
%QTDIR%:
src\winmain\\$(MAKEFILE):
@$(CHK_DIR_EXISTS) e:\Qt\src\winmain\ $(MKDIR) e:\Qt\src\winmain\
cd e:\Qt\src\winmain\ && $(QMAKE) winmain.pro -win32 -o
src\winmain\$(MAKEFILE)
If you call nmake, you will get the following error:
cd e:\Qt\src\winmain\ && e:\Qt\bin\qmake winmain.pro -win32 -o
src\winmain\Makefile
Failure to open file: E:/Qt/src/winmain//src/winmain/Makefile.Debug
Unable to generate makefile for: winmain.pro
NMAKE : fatal error U1077: 'cd' : return code '0x5'
Stop.
qmake generates an incorrect path when the "-o" option is specified.
Instead of generating the path
"e:/Qt/src/winmain/Makefile.Debug"
it generates:
"e:/Qt/src/winmain//src/winmain/Makefile.Debug"
as you can see, the string "/src/winmain" is present twice.
*I think* the problem is in MakefileGenerator
(qmake\generators\makefile.cpp). I found 2 ways to fix it:
In MakefileGenerator::writeSubTargets, line 2339:
-QString out = out_directory + subtarget->makefile,
+QString out = subtarget->makefile
or in MakefileGenerator::openOutput, line 2940:
if(!file.fileName().isEmpty()) {
if(QDir::isRelativePath(file.fileName()))
file.setFileName(Option::output_dir + "/" + file.fileName());
//pwd when qmake was run
I think the error is here, since both Option::output_dir and
file.fileName() contain "src/winmain/". Remove the call to
file.setFileName() to fix the problem.
In fact I decided not to modify existing source code, so I overrided
openOutput() in NmakeMakefileGenerator
(qmake\generators\win32\msvc_nmake.cpp) this way:
bool
NmakeMakefileGenerator::openOutput(QFile &file, const QString &build) const
{
file.setFileName("");
return MakefileGenerator::openOutput(file, build);
}
wich is equivalent to remove the option "-o" (I think), so I can compile
Qt with the "-dont-process" option :-)
Cheers,
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