kcrash when started from terminal

[Andreas Cord-Landwehr]

Hey, so do I understand it right that for all applications we have to check 
for two things:

1. the application must link against KF5::Crash
2. there must be a call to some (dummy) function in KCrash like 
"KCrash::setCrashHandler(KCrash::defaultCrashHandler);"
to ensure that the linker actually links against KCrash when, when "--as-
needed" is passed?

Cheers,
Andreas

On Friday, September 25, 2015 5:35:52 AM CET Sune Vuorela wrote:
> On 2015-09-24, Harald Sitter <sitter at kde.org> wrote:
> > Uh, ah, but, CMake is too smart :P
> > If you add a target_link_library that isn't actually used it won't be
> > linked. So what every application would have to do is add the target
> 
> It is not cmake that is too smart, but the linker when passed
> --as-needed (which many distributions does)
> 
> $ cat foo.cpp
> int main(int, char**) { };
> 
> $ g++ -lQt5Core foo.cpp
> $ objdump -x a.out | grep Qt5Core
>   NEEDED               libQt5Core.so.5
> 
> $ g++ -Wl,--as-needed -lQt5Core foo.cpp
> $ objdump -x a.out | grep Qt5Core
> 
> 
> But bottom line, just adding some extra linkage doesn't get kept for
> many compiled versions.