Qwt-6.0.0-rc1

[mariposa]

Please check SVN trunk if everything compiles and installs ( headers should be installed inside the framework only ) without any manual interfering. If successful please try to use "CONFIG += qwt" and check if this is working too.

I really would like to report something better, but there are some issues left:

1.) On the mac, there is still only the debug library being built by default. For testing purposes I changed that, of course.

2.) The designer plugin links fine, but this does not apply to the examples. I had to change the "-L" option in line 20 of examples.pri to the "-F" option to make it work. After that everything compiled and installed fine.

3.) Unfortunately, now there aren't any header files installed at all. Only one header file is present in the framework directory. I have a screenshot of all contents of "/usr/local/qwt-6.0.0-svn/":

folder.png

Therefore I didn't test compiling my application against the library, because (as far as I know) this won't work without header files.

[Uwe]

I really would like to report something better, but there are some issues left:

Writing project files for a system I don't have is somehow cumbersome - anyway some day we will have a solution.

1.) On the mac, there is still only the debug library being built by default.

In SVN debug is always enabled, but the script, that builds packages from SVN branches modifies the pri files. This was buggy for rc1, but in this situation it is o.k.

2.) The designer plugin links fine, but this does not apply to the examples. I had to change the "-L" option in line 20 of examples.pri to the "-F" option to make it work.

Indeed I forgot to fix the project file of the designer + made several other mistakes.

3.) Unfortunately, now there aren't any header files installed at all. Only one header file is present in the framework directory. I have a screenshot of all contents of "/usr/local/qwt-6.0.0-svn/":.

Of course the one header is also false ...

Concerning the missing headers in the framework directory I guess when removing headers from INSTALL the behaviour of lib_bundle is affected. I hope explicitely setting QMAKE_BUNDLE_DATA will solve this problem ( the code that had no effect in your test before ).

Please check the updated SVN trunk.

Uwe

[mariposa]

In SVN debug is always enabled, but the script, that builds packages from SVN branches modifies the pri files. This was buggy for rc1, but in this situation it is o.k.

Ah, okay

Please check the updated SVN trunk.

I checked, and it worked. It compiled at once, and all header files are at the right place. No errors during the compilation of the examples and designer plugin.

I wanted to compile my application using "CONFIG += qwt", but I always got errors about missing headers, so obviously the qwt.prf file was not found by qmake. I checked the link that you posted some time ago (on how to make qmake know where the .prf file is), but setting "QMAKEFEATURES = /usr/local/qwt-6.0.0-svn/features" in my project file did not help. I therefore just loaded the file using "load(/usr/local/qwt-6.0.0-svn/features/qwt.prf)" and omitted the "CONFIG += qwt" line. This worked.

[Uwe]

I checked, and it worked. It compiled at once, and all header files are at the right place. No errors during the compilation of the examples and designer plugin.

Please one more check: is everything okay, when you build Qwt for debug and release ?

CONFIG           += debug_and_release
CONFIG           += build_all

CONFIG           += debug_and_release
CONFIG           += build_all

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I wanted to compile my application using "CONFIG += qwt", but I always got errors about missing headers, so obviously the qwt.prf file was not found by qmake. I checked the link that you posted some time ago (on how to make qmake know where the .prf file is), but setting "QMAKEFEATURES = /usr/local/qwt-6.0.0-svn/features" in my project file did not help.

This is a environment variable, so do "export QMAKEFEATURES = /usr/local/qwt-6.0.0-svn/features" in the shell ( assuming it is a bash ), where you execute qmake.

Or if you want to have it permanently you can set it as qmake property: "qmake -set QMAKEFEATURES /usr/local/qwt-6.0.0-svn/features".

Uwe

[mariposa]

Please one more check: is everything okay, when you build Qwt for debug and release ?

I checked, everything works fine.

This is a environment variable, so do "export QMAKEFEATURES = /usr/local/qwt-6.0.0-svn/features" in the shell ( assuming it is a bash ), where you execute qmake.

Or if you want to have it permanently you can set it as qmake property: "qmake -set QMAKEFEATURES /usr/local/qwt-6.0.0-svn/features".

Ah, many thanks, now it works using the "CONFIG += qwt" option

[msr]

Hello,

I installed qwt library and all the examples are built without problems.
However when I create a project I can't use Qwt.

I tried:
export QMAKEFEATURES = /usr/local/qwt-6.0.0/features
qmake -set QMAKEFEATURES /usr/local/qwt-6.0.0/features

The qwt.prf file is in the specified directory.

But when Im building the project I still get the error:

/home/mribeiro/Qt_Projects/QwtTest/qwttest: error while loading shared libraries: libqwt.so.6: cannot open shared object file: No such file or directory
/home/mribeiro/Qt_Projects/QwtTest/qwttest exited with code 127

The contens of .pro file are:

TARGET = qwttest
 
SOURCES += main.cpp \
    mainwindow.cpp \
    plot.cpp \
    curvedata.cpp \
    signaldata.cpp
HEADERS += mainwindow.h \
    plot.h \
    curvedata.h \
    signaldata.h
 
CONFIG += qwt

TARGET = qwttest

SOURCES += main.cpp \
    mainwindow.cpp \
    plot.cpp \
    curvedata.cpp \
    signaldata.cpp
HEADERS += mainwindow.h \
    plot.h \
    curvedata.h \
    signaldata.h

CONFIG += qwt

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What am I doing wrong?

[Im using Ubuntu 10.04]

[Uwe]

But when Im building the project I still get the error: ...

No you already have built your application successfully - these are error messages of the loader !

See LD_LIBRARY_PATH, ldd, ldconfig and friends.

Uwe

[msr]

Thanks for your response.

I tried the following:

export LD_LIBRARY_PATH=/usr/local/qwt-6.0.0/lib/
Edit file /etc/ld.so.conf and include "/usr/local/qwt-6.0.0/lib/"
Run ldconfig
Run ldconfig -n "/usr/local/qwt-6.0.0/lib"

None of them worked.

Any suggestions?

Im also reading http://tldp.org/HOWTO/Program-Librar...libraries.html and I think Im doing the right thing but it still doesn't work...

mribeiro@mribeiro-linux:/usr/local/lib/qwt-6.0.0/lib$ ls
libqwtmathml.so    libqwtmathml.so.6.0    libqwt.so    libqwt.so.6.0
libqwtmathml.so.6  libqwtmathml.so.6.0.0  libqwt.so.6  libqwt.so.6.0.0

mribeiro@mribeiro-linux:/usr/local/lib/qwt-6.0.0/lib$ ls
libqwtmathml.so    libqwtmathml.so.6.0    libqwt.so    libqwt.so.6.0
libqwtmathml.so.6  libqwtmathml.so.6.0.0  libqwt.so.6  libqwt.so.6.0.0

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Edit1:
Well, I copy-pasted libqwt.so.6 to /usr/lib and now it works. However I wonder how can I configure loader to search libraries in other directories. Any help is greatly appreciated!

Edit2: Done! For further reference: create a file "*.conf" (f.e., qwt.conf) in "/etc/ld.so.conf.d/" and add path "/usr/local/qwt-6.0.0/lib"