QT minimum build to start developing

[lyuts]

I'm sure everybody understands "minimum build" in his own way. Here is how i do my minimum build (e.g. Qt 4.5.2).

./configure -prefix /usr/local/qt-4.5.2 -nomake demos -nomake examples -no-qt3support 
-no-accessibility -no-phonon -no-phonon-backend -no-webkit

./configure -prefix /usr/local/qt-4.5.2 -nomake demos -nomake examples -no-qt3support 
-no-accessibility -no-phonon -no-phonon-backend -no-webkit

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But it may differ from your needs, because i don't know what kind of application you want to develop.

[lurky]

I'm sure everybody understands "minimum build" in his own way. Here is how i do my minimum build (e.g. Qt 4.5.2).

./configure -prefix /usr/local/qt-4.5.2 -nomake demos -nomake examples -no-qt3support 
-no-accessibility -no-phonon -no-phonon-backend -no-webkit

./configure -prefix /usr/local/qt-4.5.2 -nomake demos -nomake examples -no-qt3support 
-no-accessibility -no-phonon -no-phonon-backend -no-webkit

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But it may differ from your needs, because i don't know what kind of application you want to develop.

I'm building in Windows targetting to VS2005, and -prefix is not listed in configure help: what is it for?

Anyway my meaning for "minimum" is the smallest set of files needed to develop an application (with all the possible libraries) using the VS2005 integration.
So I think I would:
- need folders 'include', 'lib', 'plugins' and 'bin'
- not need folders 'src', 'examples', 'tutorials', 'demos'
- don't know about remaining files and folders

Am I correct?

[wysota]

Of course I did NOT changed the libraries code but just played with makefiles.

Makefiiles get regenerated when you run configure.

But for safety reasons I reinstalled the SDK.

Pure waste of time, especially that the SDK is built for MinGW.

Now, how can I just build WebKit?

Giving information that you encountered some error isn't really helpful. I could only reply you needed to do something to make them go away.

I'm building in Windows targetting to VS2005, and -prefix is not listed in configure help: what is it for?

It's for installing the binaries outside the source tree. But it's unavailable on Windows.

Anyway my meaning for "minimum" is the smallest set of files needed to develop an application (with all the possible libraries) using the VS2005 integration.

You need to build the sub-src, sub-tools and possibly the plugins targets then.

[lurky]

Pure waste of time, especially that the SDK is built for MinGW.

But I need all the SDK to have designer, linguist and other tools. Correct?

Giving information that you encountered some error isn't really helpful. I could only reply you needed to do something to make them go away.

You're absolutely right, unfortunately I did not take a note of the exact error but if there's a way to build just WebKit I can make a fast try.

You need to build the sub-src, sub-tools and possibly the plugins targets then.

How can I achieve this?
What about my assumption about minimum set of required files/folders?

Thank you for you answers.

[wysota]

But I need all the SDK to have designer, linguist and other tools. Correct?

Incorrect.

You're absolutely right, unfortunately I did not take a note of the exact error but if there's a way to build just WebKit I can make a fast try.

Configure with WebKit, cd into appropriate directory and run nmake. Note that Qt libraries need to be compiled first.

How can I achieve this?

Call nmake with appropriate target names (such as sub-src).

What about my assumption about minimum set of required files/folders?

What about it?

[lurky]

Update.
Uninstalled the SDK, downloaded the
qt-win-opensource-src-4.5.2.zip
package, made configure and then nmake.
Building was completed with no errors.
Finally I got a fully working installation of QT with VS2005 integration on the machine I used to build...

but

...I then took the whole 'qt' folder to a different machine (let's say %BUILD_PATH% is were libraries were built and %NEW_PATH% is were they are located on the other machine), configured there the %QTDIR% = %NEW_PATH%, added %QTDIR%\bin to the %path%, and I'm able to open/create QT projects with the suitable 'qt designer'; the only problem is that if I try to open the help I got the error
"The binary '%BUILD_PATH%\bin\assistant.exe' does not exist."

How can I fix this?

The question in my previous post would mean: once I got the full built libraries which are the files needed to develop QT applications? (I think I should not need folders 'src', 'examples', 'tutorials', 'demos'.....)

Thanks.

[wysota]

You can't move an existing installation to a different path without recompilation (or patching the binaries).

[SABROG]

You can't move an existing installation to a different path without recompilation (or patching the binaries).

You can, just need create qt.conf file with new path.

[wysota]

As far as I know qt.conf doesn't apply to qmake. Or does it?

[SABROG]

As far as I know qt.conf doesn't apply to qmake. Or does it?

Does it. Try for yourself. Rename %QTDIR% root directory to other name, next go to new %QTDIR%/bin and create inside - file qt.conf with this content:

[Paths]
Prefix=full_path_name_to_new_root_Qt_directory

[Paths]
Prefix=full_path_name_to_new_root_Qt_directory

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Then open terminal, compiling any Qt project.

[wysota]

It doesn't work. It still points to the original path.

export QTDIR=/tmp
mkdir /tmp/bin
echo "[Paths]" > /tmp/bin/qt.conf
echo "Prefix=/opt/" >> /tmp/bin/qt.conf
mkdir /tmp/testbed
cd /tmp/testbed
touch main.cpp
qmake -project
qmake
make

export QTDIR=/tmp
mkdir /tmp/bin
echo "[Paths]" > /tmp/bin/qt.conf
echo "Prefix=/opt/" >> /tmp/bin/qt.conf
mkdir /tmp/testbed
cd /tmp/testbed
touch main.cpp
qmake -project
qmake
make

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Result:

g++ -c -pipe -O2 -g -pipe -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -fomit-frame-pointer -march=i586 -mtune=generic -fasynchronous-unwind-tables -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/lib/qt4/mkspecs/linux-g++ -I. -I/usr/lib/qt4/include/QtCore -I/usr/lib/qt4/include/QtGui -I/usr/lib/qt4/include -I. -I. -o main.o main.cpp
g++ -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro -Wl,-O1 -o testbed main.o -L/usr/lib -lQtGui -L/usr/lib -pthread -lpng -lfreetype -lgobject-2.0 -lSM -lICE -pthread -pthread -lXrender -lfontconfig -lXext -lX11 -lQtCore -lz -lm -pthread -lgthread-2.0 -lrt -lglib-2.0 -ldl -lpthread

As for me if it worked, it should have complained about missing specs but it's still seeing my installation at /usr/lib/qt4.

Even after linking qmake to /tmp/bin/qmake:
$ ./qmake -v
QMake version 2.01a
Using Qt version 4.5.2 in /usr/lib

and:
$ env|grep QTDIR
QTDIR=/tmp

Am I doing something wrong?

I think that if it was that simple, Qt installation script wouldn't be patching qmake binaries.

[SABROG]

It doesn't work. It still points to the original path.

echo "Prefix=/opt/" >> /tmp/bin/qt.conf

echo "Prefix=/opt/" >> /tmp/bin/qt.conf

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You must write

echo "Prefix=/tmp" >> /tmp/bin/qt.conf

echo "Prefix=/tmp" >> /tmp/bin/qt.conf

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Not "/opt/"

I don't try this on non windows machine. I think on your OS you also need modify PATH variable for founding correct qmake. It from my batch script on windows:

set QTDIR=D:\Work\qt-all-opensource-src-4.5.2_gcc440
set PATH=%QTDIR%/bin

set QTDIR=D:\Work\qt-all-opensource-src-4.5.2_gcc440
set PATH=%QTDIR%/bin

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So, i know what qmake has been called from QTDIR/bin path.