1 files changed, 5 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 4b4860a..21d3629 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,11 @@
 LUA_VER=5.3
 CC = cc
 LD = ld
-CFLAGS = -std=c99 -Wall -O2 -fPIC -I/usr/include/lua$(LUA_VER)
+MORE_CFLAGS=
+ifeq ($(LUA_VER),5.1)
+	MORE_CFLAGS=-DLUA_5_1
+endif
+CFLAGS = $(MORE_CFLAGS) -std=c99 -Wall -O2 -fPIC -I/usr/include/lua$(LUA_VER)
 LFLAGS = -shared -llmdb
 
 lmdb.so: lmdb.o