コンパイラフラグの整理

example/8cc/Makefile

@@ -5,6 +5,10 @@ WATERMARK := 77
 CC := clang
 
 CFLAGS := \
+	-DBUILD_DIR="\"$$PWD/8cc\"" \
+	-O2
+
+8CCFLAGS := \
 	-DBUILD_DIR="\"$$PWD/8cc\""
 
 LDFLAGS := \
@@ -51,15 +55,15 @@ ${BIN_DIR}/stage3-wm/8cc.out: ${SRCS:8cc/%.c=${OBJ_DIR}/stage3-wm/%.o}
 # Normal 8cc.
 ${OBJ_DIR}/stage1/%.o: 8cc/%.c
 	@mkdir -p ${@D}
-	${CC} ${CFLAGS} -O2 -o $@ -c $<
+	${CC} ${CFLAGS} -o $@ -c $<
 
 ${OBJ_DIR}/stage2/%.o: 8cc/%.c ${BIN_DIR}/stage1/8cc.out
 	@mkdir -p ${@D}
-	${BIN_DIR}/stage1/8cc.out -w ${CFLAGS} -o $@ -c $<
+	${BIN_DIR}/stage1/8cc.out -w ${8CCFLAGS} -o $@ -c $<
 
 ${OBJ_DIR}/stage3/%.o: 8cc/%.c ${BIN_DIR}/stage2/8cc.out
 	@mkdir -p ${@D}
-	${BIN_DIR}/stage2/8cc.out -w ${CFLAGS} -o $@ -c $<
+	${BIN_DIR}/stage2/8cc.out -w ${8CCFLAGS} -o $@ -c $<
 
 # Watermarked 8cc
 ${OBJ_DIR}/stage1-wm/%.o: ${OBJ_DIR}/stage1-wm/%-wm.ll
@@ -68,16 +72,16 @@ ${OBJ_DIR}/stage1-wm/%.o: ${OBJ_DIR}/stage1-wm/%-wm.ll
 
 ${OBJ_DIR}/stage1-wm/%-wm.ll: 8cc/%.c
 	@mkdir -p ${@D}
-	clang ${CFLAGS} -O2 -S -emit-llvm -o ${@:%-wm.ll=%.ll} $<
+	clang ${CFLAGS} -S -emit-llvm -o ${@:%-wm.ll=%.ll} $<
 	opt -load=${ROOT}/bin/src/nykk.so -block-wm -watermark=${WATERMARK} -S -o $@ ${@:%-wm.ll=%.ll} 2> ${@:%-wm.ll=%-log.txt}
 
 ${OBJ_DIR}/stage2-wm/%.o: 8cc/%.c ${BIN_DIR}/stage1-wm/8cc.out
 	@mkdir -p ${@D}
-	${BIN_DIR}/stage1-wm/8cc.out -w ${CFLAGS} -o $@ -c $<
+	${BIN_DIR}/stage1-wm/8cc.out -w ${8CCFLAGS} -o $@ -c $<
 
 ${OBJ_DIR}/stage3-wm/%.o: 8cc/%.c ${BIN_DIR}/stage2-wm/8cc.out
 	@mkdir -p ${@D}
-	${BIN_DIR}/stage2-wm/8cc.out -w ${CFLAGS} -o $@ -c $<
+	${BIN_DIR}/stage2-wm/8cc.out -w ${8CCFLAGS} -o $@ -c $<
 
 %.out:
 	@mkdir -p ${@D}

example/zlib/Makefile

@@ -6,7 +6,8 @@ CC := clang
 
 CFLAGS := \
 	-D_LARGEFILE64_SOURCE=1 \
-	-DHAVE_HIDDEN
+	-DHAVE_HIDDEN \
+	-O2
 
 SRCS := \
 	zlib/adler32.c \