mingw64-kdevplatform4 from windows:mingw:win64 project
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Add repository and install manually
For openSUSE Leap 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/windows:mingw:win64/openSUSE_Leap_15.5/windows:mingw:win64.repo zypper refresh zypper install mingw64-kdevplatform4