Compile errors originating from libKF5XsltKde.a

[Kevin Funk]

Hey,

I get the following compile errors when compiling anything that depends on 
libKF5XsltKde.a from kdoctools:

When compiling kio:

[ 53%] Built target kio_file
/home/krf/bin/ld: error: /home/krf/devel/install/kf5/lib/x86_64-linux-
gnu/libKF5XsltKde.a(xslt.cpp.o): requires dynamic R_X86_64_PC32 reloc against 
'_ZN7QStringpLE5QChar' which may overflow at runtime; recompile with -fPIC
/home/krf/bin/ld: error: /home/krf/devel/install/kf5/lib/x86_64-linux-
gnu/libKF5XsltKde.a(xslt.cpp.o): requires dynamic R_X86_64_32 reloc which may 
overflow at runtime; recompile with -fPIC
/home/krf/bin/ld: error: /home/krf/devel/install/kf5/lib/x86_64-linux-
gnu/libKF5XsltKde.a(xslt.cpp.o): requires dynamic R_X86_64_PC32 reloc against 
'_ZN5QChar7unicodeEv' which may overflow at runtime; recompile with -fPIC

Obviously, the reason is that -fPIC is missing for the static library target 
libKF5XsltKde.a.

I thought that's added implicitly when doing
target_link_libraries(KF5XsltKde Qt5::Core KF5::Archive)?
That pulls in the link flags from Qt5Core, no?

Ideas?

Important note: My Qt5 here is configured with -no-reduce-relocations (that 
might be the issue?), adding -fPIC fixes the build for me.

Greets

-- 
Kevin Funk