+C_SRCS = \ +»······main.c \
- DxDiagCOM.c \
- System.c \
...
This won't work properly, you need to use tabs in Makefiles.
Minor point: in this case, tabs are not necessary. Tabs are only necessary in Makefile rules, as in: foo: bar compile bar <-- this needs a tab
But mixing tabs and spaces is poor style and best avoided. --Juan