Makefile

# Host system detection
HOST_OS := $(shell uname -s)
TARGET_OS ?= native

# Cross-compilation settings for Windows target
MINGW_PREFIX = x86_64-w64-mingw32-
WINE ?= wine

# Compiler and flags setup
ifeq ($(TARGET_OS),windows)
    CC = $(MINGW_PREFIX)gcc
    TARGET = rlite.exe
    PLATFORM_FLAGS = -D_WIN32 -D_WIN -DWIN32_LEAN_AND_MEAN
    RM = rm -f
    
    # Windows specific flags - order is important!
    CFLAGS += -pthread $(PLATFORM_FLAGS)
    LDFLAGS = -static
    LIBS = -lmingw32 -lpthread -lwinpthread -static-libgcc -static-libstdc++ -lmsvcrt
else
    CC = gcc
    TARGET = rlite.bin
    PLATFORM_FLAGS = -D_UNIX
    RM = rm -f
    CFLAGS += -pthread $(PLATFORM_FLAGS)
    LIBS = -pthread
endif

# Common compiler flags
CFLAGS += -O3 -s

# Source files
SRC = main.c \
      advFile/advFile.c \
      advFile/fhandle.c \
      threading/yarn.c \
      qsort_mt.c \
      roaring.c \
      msort.c

# Header files
HEADERS = xxhash.h

# Object files
OBJ = $(SRC:.c=.o)

# Default target
all: platform_info $(TARGET)

# Display platform information
platform_info:
	@echo "Host OS: $(HOST_OS)"
	@echo "Target OS: $(TARGET_OS)"
	@echo "Using compiler: $(CC)"
	@echo "Using flags: $(CFLAGS)"
	@echo "Using libs: $(LIBS)"

# Linking - note the order here is important
$(TARGET): $(OBJ)
	$(CC) $(LDFLAGS) -o $@ $(OBJ) $(LIBS)

# Compiling
%.o: %.c $(HEADERS)
	$(CC) $(CFLAGS) -c $< -o $@

# Clean build files
clean:
	$(RM) $(TARGET) $(OBJ)

# Clean and rebuild
rebuild: clean all

# Cross-compile for Windows
windows:
	$(MAKE) TARGET_OS=windows

# Test Windows binary using Wine
test-windows: windows
	$(WINE) ./$(TARGET)

# Phony targets
.PHONY: all clean rebuild platform_info windows test-windows