[gpm] alps error

[Andrea Dieni]

Added dummy functions and now the error is in those functions.
I'm sure I followed your instructions step by step. 

mice.o(.text+0x1c9d): In function `M_alps_ps2':
/tmp/gpm-1.20.1/src/mice.c:1214: undefined reference to `alps_process_ps2=
_data'
mice.o(.text+0x30c6): In function `I_alps2':
/tmp/gpm-1.20.1/src/mice.c:1966: undefined reference to `alps_ps2_init'
collect2: ld returned 1 exit status
make[1]: *** [prog/mouse-test] Error 1
rm prog/hltest.o prog/mev.o prog/mouse-test.o
make[1]: Leaving directory `/tmp/gpm-1.20.1/src'
make: *** [do-all] Error 1