Errors when compiling included Example C programs

[MilesAndyThatch]

C:\Users\DevStationPrimary\Documents\LeapSDK\samples>gcc CallbackSample.c
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x294): undefined reference to `LeapGetPointMappingSize'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x2f0): undefined reference to `LeapGetPointMapping'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x43c): undefined reference to `ConnectionCallbacks'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x446): undefined reference to `ConnectionCallbacks'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x450): undefined reference to `ConnectionCallbacks'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x45a): undefined reference to `ConnectionCallbacks'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x464): undefined reference to `ConnectionCallbacks'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x46e): more undefined references to `ConnectionCallbacks' follow
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x481): undefined reference to `OpenConnection'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x4b5): undefined reference to `LeapSetAllocator'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x4e4): undefined reference to `LeapSetPolicyFlags'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x4fa): undefined reference to `CloseConnection'
c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: C:\Users\DEVSTA~1\AppData\Local\Temp\ccEPfwTM.o:CallbackSample.c:(.text+0x4ff): undefined reference to `DestroyConnection'
collect2.exe: error: ld returned 1 exit status