MinGW can't link qminimald.dll (MSYS2 with fontconfig)

g++ -shared -Wl,-subsystem,windows -Wl,--out-implib,C:\Qt\5.13.2-mingw-build\qtbase\plugins\platforms\libqminimald.a -o ..\..\..\..\plugins\platforms\qminimald.dll .obj/debug/main.o .obj/debug/qminimalintegration.o .obj/debug/qminimalbackingstore.o C:\Qt\5.13.2-mingw-build\qtbase\lib\libQt5EventDispatcherSupportd.a C:\Qt\5.13.2-mingw-build\qtbase\lib\libQt5FontDatabaseSupportd.a -lole32 -lgdi32 -luser32 -ladvapi32 -luuid C:\msys64\mingw64\lib\libfreetype.dll.a C:\msys64\mingw64\lib\libz.dll.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libdwrite.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libd2d1.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libglu32.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libopengl32.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libgdi32.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libuser32.a C:\Qt\5.13.2-mingw-build\qtbase\lib\libQt5Guid.a C:\Qt\5.13.2-mingw-build\qtbase\lib\libQt5Cored.a .obj\debug\qminimald_resource_res.o C:\msys64\mingw64\lib\libfreetype.dll.a C:\msys64\mingw64\lib\libz.dll.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libglu32.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libopengl32.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libgdi32.a C:\msys64\mingw64\x86_64-w64-mingw32\lib\libuser32.a
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: .obj/debug/qminimalintegration.o:qminimalintegration.cpp:(.rdata$.refptr._ZTV19QFontconfigDatabase[.refptr._ZTV19QFontconfigDatabase]+0x0): undefined reference to `vtable for QFontconfigDatabase'
collect2.exe: error: ld returned 1 exit status