setup project files

Added (most) of the project files to the working tree.
Some work still needs to be done to make the rust/C communication better
before we can fully move on to starting to write the actual applicaiton.

makefile

@@ -0,0 +1,99 @@
+# dependencies:
+#  - make
+#  - clang
+#  - rustc
+#  - bear (debug)
+#  - git bash (windows)
+NAME  := mcaselector-lite
+VER   := 0.0.1
+
+RUSTC   := rustc
+
+# C compiler options
+CC      := clang
+CLANG   := c
+CSTD    := c17
+CFLAGS  := -Wall -Wextra -Wpedantic -Wno-pointer-arith
+LDFLAGS :=
+DEBUG   ?= 0
+ARCH    ?= 0
+
+ifeq ($(DEBUG),1)
+CFLAGS += -DDEBUG -g -Og
+PROF   := dbg
+else
+CFLAGS += -O2
+PROF   := rel
+endif
+
+ifneq ($(MAKECMDGOALS),clean)
+ifeq      ($(ARCH),linux-x86_64)
+CFLAGS += -target x86_64-pc-linux-gnu
+else ifeq ($(ARCH),win-x86_64)
+CFLAGS += -target x86_64-pc-windows-gnu
+EXT    := .exe
+else
+$(error you must set the ARCH environment variable to one of these: 'linux-x86_64' 'win-x86_64')
+endif
+endif
+
+ifneq ($(ARCH),0)
+C_SRC  := $(wildcard src/*.c) $(wildcard src/**/*.c) $(wildcard src/**/**/*.c) $(wildcard src/**/**/**/*.c) $(wildcard src/**/**/**/**/*.c)
+C_OBJ  := $(patsubst src/%,obj/$(ARCH)/$(PROF)/%,$(C_SRC:.c=.o))
+C_DEP  := $(C_OBJ:.o=.d)
+RS_SRC := $(wildcard src/*.rs) $(wildcard src/**/*.rs) $(wildcard src/**/**/*.rs) $(wildcard src/**/**/**/*.rs) $(wildcard src/**/**/**/**/*.rs)
+RS_OBJ := $(patsubst src/%,obj/$(ARCH)/$(PROF)/%,$(RS_SRC:.rs=.o))
+
+DIR       := bin/$(ARCH)/$(PROF) $(sort obj/$(ARCH)/$(PROF) $(dir $(C_SRC))  $(dir $(RS_SRC)))
+DIR_BUILD := bin/$(ARCH)/$(PROF)
+TARGET    := $(DIR_BUILD)/$(NAME)$(EXT)
+endif
+
+define wr_colour
+	@echo -e "\033[$(2)m$(1)\033[0m"
+endef
+
+# compiles and executes the produced binary
+run: compile
+	./$(TARGET)
+compile: compile_commands.json $(DIR) $(TARGET)
+clean:
+	rm -rf bin/ obj/ compile_commands.json
+
+# create the binary (linking step)
+$(TARGET): $(C_OBJ) $(RS_OBJ)
+	@$(call wr_colour,"RUSTC: '$(RUSTC)'",94)
+	@$(call wr_colour,"CC: '$(CC)'",94)
+	@$(call wr_colour,"CFLAGS: '$(CFLAGS)'",94)
+	@$(call wr_colour,"LDFLAGS: '$(LDFLAGS)'",94)
+	@$(call wr_colour,"linking to: '$@'",92)
+
+	@$(CC) $(LDFLAGS) $(C_OBJ) $(RS_OBJ) -o $(TARGET)
+	@$(call wr_colour,"current profile: '$(PROF)'",93)
+
+# create .o and .d files for C sources
+$(C_OBJ): $(C_SRC)
+	$(call wr_colour,"compiling $(notdir $@) from $(notdir $<)",92)
+	@$(CC) $(CFLAGS) -c -MD -MP -std=$(CSTD) -x $(CLANG) -o $@ $<
+
+# create .o files for RUST sources
+$(RS_OBJ): $(RS_SRC)
+	$(call wr_colour,"compiling $(notdir $@) from $(notdir $<)",92)
+	$(RUSTC) --crate-type=staticlib --emit=obj -C debuginfo=2 -C panic=abort -o $@ $<
+
+# create directories
+$(DIR):
+	mkdir -p $@
+
+# update compile commands if the makefile has been updated (for linting)
+ifeq ($(DEBUG),1)
+compile_commands.json: makefile
+	$(MAKE) clean
+	@touch compile_commands.json
+	bear -- make compile
+else
+compile_commands.json:
+endif
+
+# include the dependencies
+-include $(C_DEP)