--- v1/makefile	2023-06-27 00:30:55.000000000 +0800
+++ v2/makefile	2024-06-09 20:05:00.118926980 +0800
@@ -1,7 +1,7 @@
 LIBNAME = lpeg
 LUADIR = ./lua/
 
-COPT = -O2 -DNDEBUG
+#COPT = -O2 -DNDEBUG
 # COPT = -O0 -DLPEG_DEBUG -g
 
 CWARNS = -Wall -Wextra -pedantic \
@@ -25,29 +25,29 @@
 # -Wunreachable-code \
 
 
-CFLAGS = $(CWARNS) $(COPT) -std=c99 -I$(LUADIR) -fPIC
+CFLAGS += $(CWARNS) $(COPT) -std=c99 -I$(LUADIR) -fPIC
 CC = gcc
 
 FILES = lpvm.o lpcap.o lptree.o lpcode.o lpprint.o lpcset.o
 
 # For Linux
 linux:
-	$(MAKE) lpeg.so "DLLFLAGS = -shared -fPIC"
+	$(MAKE) liblpeg.so "DLLFLAGS = -shared -fPIC"
 
 # For Mac OS
 macosx:
-	$(MAKE) lpeg.so "DLLFLAGS = -bundle -undefined dynamic_lookup"
+	$(MAKE) liblpeg.so "DLLFLAGS = -bundle -undefined dynamic_lookup"
 
-lpeg.so: $(FILES)
-	env $(CC) $(DLLFLAGS) $(FILES) -o lpeg.so
+liblpeg.so: $(FILES)
+	env $(CC) $(DLLFLAGS) -Wl,-soname,liblpeg-$(LUAVER).so $(FILES) -o liblpeg.so
 
 $(FILES): makefile
 
-test: test.lua re.lua lpeg.so
+test: test.lua re.lua liblpeg.so
 	./test.lua
 
 clean:
-	rm -f $(FILES) lpeg.so
+	rm -f $(FILES) liblpeg.so
 
 
 lpcap.o: lpcap.c lpcap.h lptypes.h