Makefile Additions

I've had a poke around but can't seem to find an answer to this one.

I've made an array of changes, and they all compile merrily in VC++ but not in GCC3. I have added the following to the targets.torque.mk:


SOURCE.GA=\
ga/AIGA.cpp \
ga/GA1DArrayGenome.C \ # Yes, these are capitals in the file too.
ga/GA1DBinStrGenome.C \
ga/GA2DArrayGenome.C \
ga/GA2DBinStrGenome.C \
ga/GA3DArrayGenome.C \
...

SOURCE.ENGINE =\
$(SOURCE.GA) \
...


However, when compiling I get:

make: *** No rule to make target 'out.GCC3.DEBUG/ga/GA1DArrayGenome.obj', needed by 'out.GCC3.DEBUG/torqueDemo_DEBUG.bin'. Stop.

Do I need to add more to the makefile to get it to compile, or have I made an obvious error somewhere?

Cheers