problem in final linking

[KagaKyouichirou]

[100%] Linking CXX executable ../bin/ygopro

/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.data.rel.ro._ZTCN3irr3gui15CGUIImageButtonE0_NS0_10CGUIButtonE[_ZTVN3irr3gui15CGUIImageButtonE]+0x18): undefined reference to `typeinfo for irr::gui::CGUIButton'

/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.data.rel.ro._ZTCN3irr3gui15CGUIImageButtonE0_NS0_10CGUIButtonE[_ZTVN3irr3gui15CGUIImageButtonE]+0x1f0): undefined reference to `typeinfo for irr::gui::CGUIButton'

/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.data.rel.ro._ZTCN3irr3gui15CGUIImageButtonE0_NS0_10CGUIButtonE[_ZTVN3irr3gui15CGUIImageButtonE]+0x228): undefined reference to `typeinfo for irr::gui::CGUIButton'

/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.data.rel.ro._ZTIN3irr3gui15CGUIImageButtonE[_ZTIN3irr3gui15CGUIImageButtonE]+0x10): undefined reference to `typeinfo for irr::gui::CGUIButton'

[kevinlul]

What version of irrlicht are you using?

[KagaKyouichirou]

What version of irrlicht are you using?

irrlicht-1.8.4-2 on Archlinux system

[LisandraBrave]

Reproducible on Fedora 31 with irrlicht-1.8.4-10

/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.rodata._ZTCN3irr3gui15CGUIImageButtonE0_NS0_10CGUIButtonE[_ZTVN3irr3gui15CGUIImageButtonE]+0x18): undefined reference to `typeinfo for irr::gui::CGUIButton'
/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.rodata._ZTCN3irr3gui15CGUIImageButtonE0_NS0_10CGUIButtonE[_ZTVN3irr3gui15CGUIImageButtonE]+0x1f0): undefined reference to `typeinfo for irr::gui::CGUIButton'
/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.rodata._ZTCN3irr3gui15CGUIImageButtonE0_NS0_10CGUIButtonE[_ZTVN3irr3gui15CGUIImageButtonE]+0x228): undefined reference to `typeinfo for irr::gui::CGUIButton'
/usr/bin/ld: CMakeFiles/ygopro.dir/CGUIImageButton.cpp.o:(.rodata._ZTIN3irr3gui15CGUIImageButtonE[_ZTIN3irr3gui15CGUIImageButtonE]+0x10): undefined reference to `typeinfo for irr::gui::CGUIButton'```

[purerosefallen]

CMake is not fully configured in this fork...
@LisandraBrave You may have to use the Irrlicht in this fork instead: https://github.com/DailyShana/irrlicht

[Reisen1969]

I have sample error on archlinux .
what should i do to fix error?

update:
I have I solved the problem.
The way:-fno-rtti