Re: [PATCH] gnu: kde: Add kdelibs.

[Andreas Enge <andreas@enge.fr>]

On Thu, Nov 06, 2014 at 12:46:21PM +0100, Ludovic Courtès wrote:
> Apologies if this was already mentioned, but why don’t
> -DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE and
> -DCMAKE_INSTALL_RPATH=$out/lib (in cmake-build-system.scm) lead to
> binaries with a RUNPATH?  As Eric said, this should produce binaries
> with an appropriate RUNPATH, no?  Or does it only take care of setting
> the RUNPATH to $out/lib?

From what I understood, the first variable should have solved the problem.
I set -DCMAKE_VERBOSE_MAKEFILE=ON and compiled ktouch. When running it, it
stops with
ktouch: error while loading shared libraries: libkdeclarative.so.5: cannot open shared object file: No such file or directory

And indeed:
$ ldd ~/.guix-profile/bin/ktouch 
        linux-vdso.so.1 (0x00007fff961ff000)
        libkdeclarative.so.5 => not found
        ...
(lots of other "not found").

$ objdump -x ~/.guix-profile/bin/ktouch
...
Dynamic Section:
  NEEDED               libkdeclarative.so.5
  NEEDED               libplasma.so.3
  NEEDED               libkio.so.5
  NEEDED               libkcmutils.so.4
  NEEDED               libQtCore.so.4
  NEEDED               libpthread.so.0
  NEEDED               libQtOpenGL.so.4
  NEEDED               libQtScript.so.4
  NEEDED               libQtDeclarative.so.4
  NEEDED               libQtXmlPatterns.so.4
  NEEDED               libQtSql.so.4
  NEEDED               libQtNetwork.so.4
  NEEDED               libQtXml.so.4
  NEEDED               libkdeui.so.5
  NEEDED               libQtSvg.so.4
  NEEDED               libkdecore.so.5
  NEEDED               libQtDBus.so.4
  NEEDED               libQtGui.so.4
  NEEDED               libstdc++.so.6
  NEEDED               libm.so.6
  NEEDED               libgcc_s.so.1
  NEEDED               libc.so.6
  RUNPATH              /gnu/store/7c30kyzagk84inhnb2nbxcmnh76xgh6c-ktouch-4.14.2/lib:/gnu/store/4k20pkxgvfc22wpcvh6xr26ma4b619ad-glibc-2.20/lib:/gnu/store/k7w7wdpvaqlkwq0ijz9149pqn3lq8a5n-gcc-4.8.3-lib/lib64:/gnu/store/k7w7wdpvaqlkwq0ijz9149pqn3lq8a5n-gcc-4.8.3-lib/lib:/gnu/store/k7w7wdpvaqlkwq0ijz9149pqn3lq8a5n-gcc-4.8.3-lib/lib/gcc/x86_64-unknown-linux-gnu/4.8.3/../../..

(Thanks to Ludovic for the suggestion to use objdump!)

The linker line looks like this:
Linking CXX executable ktouch
cd /tmp/nix-build-ktouch-4.14.2.drv-0/build/src && /gnu/store/sr9lv3vhviy151zv315zdgi2rvq97a9r-cmake-2.8.12/bin/cmake -E cmake_link_script CMakeFiles/ktouch.dir/link.txt --verbose=1
/gnu/store/13ahaqlmniysmbls5d1fcmzy59yd5xk5-gcc-4.8.3/bin/c++    -Wnon-virtual-dtor -Wno-long-long -Wundef -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wformat-security -fno-exceptions -DQT_NO_EXCEPTIONS -fno-check-new -fno-common -Woverloaded-virtual -fno-threadsafe-statics -fvisibility=hidden -Werror=return-type -fvisibility-inlines-hidden -O2 -g -DNDEBUG -DQT_NO_DEBUG  -Wl,--enable-new-dtags   CMakeFiles/ktouch.dir/ktouch_automoc.o CMakeFiles/ktouch.dir/main.o CMakeFiles/ktouch.dir/application.o CMakeFiles/ktouch.dir/mainwindow.o CMakeFiles/ktouch.dir/bindings/utils.o CMakeFiles/ktouch.dir/bindings/stringformatter.o CMakeFiles/ktouch.dir/declarativeitems/applicationbackground.o CMakeFiles/ktouch.dir/declarativeitems/cursorshapearea.o CMakeFiles/ktouch.dir/declarativeitems/griditem.o CMakeFiles/ktouch.dir/declarativeitems/lessonpainter.o CMakeFiles/ktouch.dir/declarativeitems/preferencesproxy.o CMakeFiles/ktouch.dir/declarativeitems/scalebackgrounditem.o CMakeFiles/ktouch.dir/declarativeitems/
traininglinecore.o CMakeFiles/ktouch.dir/core/resource.o CMakeFiles/ktouch.dir/core/keyboardlayoutbase.o CMakeFiles/ktouch.dir/core/keyboardlayout.o CMakeFiles/ktouch.dir/core/abstractkey.o CMakeFiles/ktouch.dir/core/key.o CMakeFiles/ktouch.dir/core/keychar.o CMakeFiles/ktouch.dir/core/specialkey.o CMakeFiles/ktouch.dir/core/coursebase.o CMakeFiles/ktouch.dir/core/course.o CMakeFiles/ktouch.dir/core/lesson.o CMakeFiles/ktouch.dir/core/trainingstats.o CMakeFiles/ktouch.dir/core/profile.o CMakeFiles/ktouch.dir/core/dataindex.o CMakeFiles/ktouch.dir/core/dataaccess.o CMakeFiles/ktouch.dir/core/dbaccess.o CMakeFiles/ktouch.dir/core/profiledataaccess.o CMakeFiles/ktouch.dir/core/resourcedataaccess.o CMakeFiles/ktouch.dir/core/userdataaccess.o CMakeFiles/ktouch.dir/undocommands/coursecommands.o CMakeFiles/ktouch.dir/undocommands/keyboardlayoutcommands.o CMakeFiles/ktouch.dir/models/resourcemodel.o CMakeFiles/ktouch.dir/models/lessonmodel.o CMakeFiles/ktouch.dir/models/charactersmodel.o CMakeFiles/ktouch.dir/models/
categorizedresourcesortfilterproxymodel.o CMakeFiles/ktouch.dir/models/errorsmodel.o CMakeFiles/ktouch.dir/models/learningprogressmodel.o CMakeFiles/ktouch.dir/editor/resourceeditor.o CMakeFiles/ktouch.dir/editor/resourceeditorwidget.o CMakeFiles/ktouch.dir/editor/newresourceassistant.o CMakeFiles/ktouch.dir/editor/resourcetypeswidget.o CMakeFiles/ktouch.dir/editor/newcoursewidget.o CMakeFiles/ktouch.dir/editor/newkeyboardlayoutwidget.o CMakeFiles/ktouch.dir/editor/resourcetemplatewidget.o CMakeFiles/ktouch.dir/editor/abstracteditor.o CMakeFiles/ktouch.dir/editor/courseeditor.o CMakeFiles/ktouch.dir/editor/keyboardlayoutcombobox.o CMakeFiles/ktouch.dir/editor/lessontexteditor.o CMakeFiles/ktouch.dir/editor/lessontexthighlighter.o CMakeFiles/ktouch.dir/editor/keyboardlayouteditor.o CMakeFiles/ktouch.dir/editor/keyboardlayouteditorview.o CMakeFiles/ktouch.dir/editor/keyboardlayoutpropertieswidget.o CMakeFiles/ktouch.dir/editor/charactersviewdelegate.o CMakeFiles/ktouch.dir/trainingconfigwidget.o CMakeFiles/
ktouch.dir/colorsconfigwidget.o CMakeFiles/ktouch.dir/customlessoneditorwidget.o CMakeFiles/ktouch.dir/keyboardlayoutmenu.o CMakeFiles/ktouch.dir/preferences.o  -o ktouch -rdynamic /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/lib/libkdeclarative.so.5.14.2 /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/lib/libplasma.so.3.0.0 /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/lib/libkio.so.5.14.2 /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/lib/libkcmutils.so.4.14.2 /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtCore.so -lpthread /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtOpenGL.so /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtScript.so /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtDeclarative.so /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtXmlPatterns.so /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtSql.so /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/
lib/libkcmutils.so.4.14.2 /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/lib/libkio.so.5.14.2 /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtNetwork.so /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtXml.so /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/lib/libkdeui.so.5.14.2 /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtSvg.so /gnu/store/mipmjv4mpsf3rrsk1mbhpqzlw939v6ny-kdelibs-4.14.2/lib/libkdecore.so.5.14.2 /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtCore.so -lpthread /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtDBus.so /gnu/store/ay41dmszxgl57mxsfrp0misnz159csw1-qt-4.8.6/lib/libQtGui.so -Wl,-rpath,::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 

You see lots of "...so" and no "-l...", which is apparently the cmake way of
doing things. But no "-Wl,-rpath" despite
   -DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE
Does this mean that this option only honours paths coming from "-l", while
at the same time using "-l" is unusual with cmake?

Andreas