Replaced whole bunch for Makefiles with a single generic Makefile.

- No complex shell logic.
- "Source file shadowing" for all targets via vpath.
- Dependency handling.
- True incremental build.
- Don't write into source directories.
- Easy cleanup by just removing 'wrk'.

libsrc/supervision/Makefile

@@ -1,47 +0,0 @@
-#
-# cc65 makefile for the supervision specific modules
-#
-
-.SUFFIXES: .o .s .c
-
-#--------------------------------------------------------------------------
-# Programs and flags
-
-SYS	= supervision
-
-AS	= ../../src/ca65/ca65
-CC	= ../../src/cc65/cc65
-LD	= ../../src/ld65/ld65
-
-AFLAGS	= -t $(SYS) --forget-inc-paths -I../../asminc
-CFLAGS	= -Osir -g -T -t $(SYS) --forget-inc-paths -I . -I ../../include
-
-#--------------------------------------------------------------------------
-# Rules
-
-%.o:	%.c
-	@$(CC) $(CFLAGS) $<
-	@$(AS) -o $@ $(AFLAGS) $(*).s
-
-%.o:	%.s
-	@$(AS) -g -o $@ $(AFLAGS) $<
-
-#--------------------------------------------------------------------------
-# Object files
-
-C_OBJS=
-
-S_OBJS= crt0.o          \
-        ctype.o
-
-#--------------------------------------------------------------------------
-# Targets
-
-.PHONY:	all clean zap
-
-all:	$(C_OBJS) $(S_OBJS)
-
-clean:
-	@$(RM) $(C_OBJS:.c=.s) $(C_OBJS) $(S_OBJS)
-
-zap:	clean