Add example Makefile.legacy with gcc flags for historical projects

Author: aaaronic

Makefile.legacy

@@ -0,0 +1,86 @@
+PRODUCT_NAME       = my_project
+
+# You probably won't need to touch anything below here!!!
+# The one exception is the cleanup stuff.
+
+SOURCES            = $(wildcard *.c)
+ASMSOURCES         = $(wildcard *.asm)
+AUDIOSOURCES       = $(wildcard *.wav)
+DKPATH             = /opt/devkitpro
+FIND               = find
+COPY               = cp -r
+
+# --- File Names
+ELF_NAME           = $(PRODUCT_NAME).elf
+ROM_NAME           = $(PRODUCT_NAME).gba
+BIN_NAME           = $(PRODUCT_NAME)
+
+#MODEL              = -mthumb-interwork -mthumb
+MODEL              = -mthumb-interwork -marm -mlong-calls #This makes interrupts work
+SPECS              = -specs=gba.specs
+
+# --- Archiver
+AS                 = $(DKPATH)/devkitARM/bin/arm-none-eabi-as
+ASFLAGS            = -mthumb-interwork
+
+# --- Compiler
+CC                 = $(DKPATH)/devkitARM/bin/arm-none-eabi-gcc
+CFLAGS             = $(MODEL) -O2 -Wall -pedantic -Wextra -std=c99 -fpermissive -fcommon -save-temps -D_ROM=$(ROM_NAME)
+
+# --- Linker
+LD                 = $(DKPATH)/devkitARM/bin/arm-none-eabi-gcc
+LDFLAGS            = $(SPECS) $(MODEL) -lm
+
+# --- Object/Executable Packager
+OBJCOPY            = $(DKPATH)/devkitARM/bin/arm-none-eabi-objcopy
+OBJCOPYFLAGS       = -O binary
+
+# --- ROM Fixer
+GBAFIX             = $(DKPATH)/tools/bin/gbafix
+
+# --- Delete
+RM                 = rm -f
+
+ASMOBJECTS = $(ASMSOURCES:.asm=.o)
+AUDIOOBJECTS = $(AUDIOSOURCES:.wav=.c)
+AUDIOHEADERS = $(AUDIOSOURCES:.wav=.h)
+COBJECTS = $(SOURCES:.c=.o) $(AUDIOSOURCES:.wav=.o)
+OBJECTS = $(COBJECTS) $(ASMOBJECTS)
+
+
+# --- Main build target
+
+all : audio build
+
+build : $(ROM_NAME)
+
+# --- Build .elf file into .gba ROM file
+$(ROM_NAME) : $(ELF_NAME)
+	$(OBJCOPY) $(OBJCOPYFLAGS) $(ELF_NAME) $(ROM_NAME)
+	$(GBAFIX) $(ROM_NAME)
+
+# --- Build .o files into .elf file
+$(ELF_NAME) : $(OBJECTS)
+	$(LD) $^ $(LDFLAGS) -o $@
+
+# -- Build .asm files into .o files
+$(ASMOBJECTS) : %.o : %.asm
+	$(AS) $(ASFLAGS) $< -o $@
+
+# -- Build .c files into .o files
+$(COBJECTS) : %.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# -- Build .wav files into .c and .h files
+$(AUDIOOBJECTS) : %.c : %.wav
+	wav2c $< $@ $*
+
+$(AUDIOHEADERS) : %.h : %.c
+
+
+clean:
+	$(RM) $(ROM_NAME) $(ELF_NAME) $(BIN_NAME)
+	$(RM) $(AUDIOOBJECTS) $(AUDIOHEADERS)
+	$(RM) *.o *.i *.s *.sav
+
+audio: $(AUDIOOBJECTS)