[SOLVED] Cmake error

~sHyLoCk~ · 12-07-2009, 08:28 AM

Hi. I'm using a fresh install of slackware64 with vbatts 4.3.1 kde packages on stable. While building a kde plugin with cmake I get this error:

Code:

# cmake ../ -DCMAKE_INSTALL_PREFIX=`kde4-config --prefix`                                                                                                                      
-- Found Qt-Version 4.5.1 (using /usr/bin/qmake)                                                                             
-- Found X11: /usr/lib64/libX11.so                                                                                           
-- Phonon Version: 4.3.0                                                                                                     
CMake Error at /usr/share/apps/cmake/modules/FindKDE4Internal.cmake:1098 (message):                                          
  Qt compiled without support for -fvisibility=hidden.  This will break                                                      
  plugins and linking of some applications.  Please fix your Qt installation.                                                
Call Stack (most recent call first):                                                                                         
  /usr/share/cmake-2.6/Modules/FindKDE4.cmake:81 (FIND_PACKAGE)                                                              
  CMakeLists.txt:4 (find_package)       
-- Configuring incomplete, errors occurred!

i am fully updated with the stable patches/upgrades. Do I need to install anything else?

JokerBoy · 12-07-2009, 08:53 AM

have you tried with qt and phonon from -current?

~sHyLoCk~ · 12-07-2009, 09:27 AM

No I haven't. i am downloading them now. Thanks or the clue.

~sHyLoCk~ · 12-07-2009, 10:04 AM

Nope still the same error. Any other packages I need to install?

ponce · 12-07-2009, 10:10 AM

found this.

~sHyLoCk~ · 12-07-2009, 11:01 AM

Thanks poncez.
How can I ad the -fvisibility=hidden flag?
I tried adding: -fvisibility-hidden \ in Slackbuild but doesn't work.
Or shall I just use:
./qt.Slackbuild -fvisibility=hidden, will that work?

ponce · 12-07-2009, 11:05 AM

I think you have to add it to SLKCFLAGS variable inside qt.SlackBuild: on stock slackbuild for x86_64 is

Code:

SLKCFLAGS="-O2 -fPIC"

but, I think, it has to become

Code:

SLKCFLAGS="-O2 -fPIC -fvisibility=hidden"

not sure if this will fix your issue (let you compile plugins) but it's worth a try.

just notice that that error happens also if you try to build the plugin on a filesystem with the noexec flag set.

~sHyLoCk~ · 12-07-2009, 11:12 AM

Hi, thanks for the reply.I am getting:

Code:

Creating qmake. Please wait...
g++ -c -o project.o -m64 -pipe -DQMAKE_OPENSOURCE_EDITION -I. -Igenerators -Igenerators/unix -Igenerators/win32 -Igenerators/mac -I/tmp/qt-4.5.3_063bded/include -I/tmp/qt-4.5.3_063bded/include/QtCore -I/tmp/qt-4.5.3_063bded/src/corelib/global -I/tmp/qt-4.5.3_063bded/src/script -DQT_NO_PCRE -DQT_BUILD_QMAKE -DQT_BOOTSTRAPPED -DQT_NO_TEXTCODEC -DQT_NO_UNICODETABLES -DQT_NO_COMPONENT -DQT_NO_STL -DQT_NO_COMPRESS -I/tmp/qt-4.5.3_063bded/mkspecs/linux-g++-64 -DHAVE_QCONFIG_CPP -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VARIANT -O2 -fPIC -fvisibility-hidden project.cpp
cc1plus: error: unrecognized command line option "-fvisibility-hidden"
gmake: *** [project.o] Error 1
make: *** No targets specified and no makefile found.  Stop.
make: *** No targets specified and no makefile found.  Stop.

ponce · 12-07-2009, 11:15 AM

sorry, i edited above, it's -fvisibility=hidden, but check also about the noexec attribute (read above) for the filesystem where you are building the plugin (should be in /etc/fstab).

~sHyLoCk~ · 12-07-2009, 11:20 AM

Hi, yeah I realised that and it's compiling now after making the edit.

Anyway, I'm building it on /home , I just have a single partition for slack here ,besides swap.

Code:

/dev/hda3        /                ext4        defaults         1   1

EDIT: It still shows the same error. I'm guessing cmake is messed up?

EDIT2: Things are done. I had to delete ~/.kde and reboot.

ponce · 12-07-2009, 01:00 PM

happy you solved it

maybe you needed only to remove the file in .kde with qt settings (don't remember now the exact name and position) and restart X but this way everything is cleaner