Compiling under openSUSE Tumbleweed

[David Rosca]

Hi,

On Thu, Jun 13, 2019 at 7:17 AM Theo <alpha0x89 at yahoo.de> wrote:
>
> I compiled Falkon 3.1.99 (dfb3d235) from source because I couldn't find
> a package for openSUSE Tumbleweed with Python plugin support (and to
> benefit from the latest improvements). I'll describe the steps to my
> success and ask some questions about possible bugs (or about what I'm
> doing wrong).
>
> Prerequisites that where missing on my system:
>
> * kcrash-devel, purpose-devel (for optional KDE Frameworks Integration
> plugin)
> * python3-pyside2, python3-pyside2-devel (for optional Python plugins)
> * clang-devel, clang7-devel (clang-devel is also version 7, I installed
> both just in case) CMake didn't complain about this one missing. Is this
> a bug? I installed these packages after 'make' gave this error:
>
> qt.shiboken: (pyfalkon) Unable to locate Clang's built-in include
> directory (neither by checking the environment variables
> LLVM_INSTALL_DIR, CLANG_INSTALL_DIR  nor running llvm-config). This may
> lead to parse errors.
> /usr/lib64/gcc/x86_64-suse-linux/9/../../../../include/c++/9/cstddef:50:10:
> fatal error: 'stddef.h' file not found

I don't know about this error (probably something shiboken related),
but you shouldn't need clang to build, gcc is enough.

>
> Steps:
>
> $ git clone git://anongit.kde.org/falkon.git
> $ cd falkon
> $ mkdir build && cd build
> $ cmake -DCMAKE_INSTALL_PREFIX=/opt/falkon -DCMAKE_BUILD_TYPE=None ..
>
> Without '-DCMAKE_BUILD_TYPE=None', I get this error from CMake:
>
> CMake Error at
> /usr/lib64/cmake/Shiboken2-5.12.3/shiboken_helpers.cmake:160
> (shiboken_get_library_for_current_config):
>   shiboken_get_library_for_current_config Function invoked with incorrect
>   arguments for function named: shiboken_get_library_for_current_config
> Call Stack (most recent call first):
>
> /usr/lib64/cmake/Shiboken2-5.12.3/Shiboken2Config.cpython-37m-x86_64-linux-gnu.cmake:48
> (shiboken_compute_python_libraries)
>   /usr/lib64/cmake/Shiboken2-5.12.3/Shiboken2Config.cmake:5 (include)
>   CMakeLists.txt:117 (find_package)
>
> Is this related to https://bugs.kde.org/show_bug.cgi?id=405833 ?

Yes, that's Qt bug.

>
> $ make
> $ sudo make install
> $ mkdir /usr/local/lib64/plugins
> $ ln -s /opt/falkon/lib64/plugins/falkon /usr/local/lib64/plugins/falkon
> $ export XDG_DATA_DIRS="/opt/falkon/share:$XDG_DATA_DIRS"
> $ /opt/falkon/bin/falkon
>
> Falkon looks for plug-ins only under /usr/local/lib64/plugins/falkon,
> despite '-DCMAKE_INSTALL_PREFIX=/opt/falkon'. Is this a bug? I also tried

No, it looks in /opt/falkon, check all paths in Help -> Configuration
Information.
Most likely the issue is that the falkon binary loads the system
libFalkonPrivate instead of the one in /opt/falkon (due to /opt/falkon
not being in ld.so paths).
Why do you install to /opt/falkon anyway?

>
> $ export QT_PLUGIN_PATH="/opt/falkon/lib64/plugins:$QT_PLUGIN_PATH"
>
> without success.

That would be FALKON_PLUGIN_PATH, but still it wouldn't help you
there, see above.

David