diff --git a/t/sanity.t b/t/sanity.t
index ef39aeb..a5063f9 100644
--- a/t/sanity.t
+++ b/t/sanity.t
@@ -64,6 +64,7 @@ __DATA__
   --with-lua51=PATH                  specify the external installation of Lua 5.1 by PATH
   --with-luajit                      enable and build LuaJIT 2.0
   --with-luajit=PATH                 use the external LuaJIT 2.0 installation specified by PATH
+  --with-luajit-xcflags=FLAGS        Specify extra C compiler flags for LuaJIT 2.0
   --with-libdrizzle=DIR              specify the libdrizzle 1.0 (or drizzle) installation prefix
   --with-libpq=DIR                   specify the libpq (or postgresql) installation prefix
   --with-pg_config=PATH              specify the path of the pg_config utility
@@ -769,6 +770,7 @@ clean:
   --with-lua51=PATH                  specify the external installation of Lua 5.1 by PATH
   --with-luajit                      enable and build LuaJIT 2.0
   --with-luajit=PATH                 use the external LuaJIT 2.0 installation specified by PATH
+  --with-luajit-xcflags=FLAGS        Specify extra C compiler flags for LuaJIT 2.0
   --with-libdrizzle=DIR              specify the libdrizzle 1.0 (or drizzle) installation prefix
   --with-libpq=DIR                   specify the libpq (or postgresql) installation prefix
   --with-pg_config=PATH              specify the path of the pg_config utility
@@ -1765,8 +1767,8 @@ platform: freebsd (freebsd)
 cp -rp bundle/ build
 cd build
 cd LuaJIT-2.0.0-beta10
-gmake TARGET_STRIP=@: CFLAGS=-I.. PREFIX=/usr/local/openresty/luajit
-gmake install TARGET_STRIP=@: CFLAGS=-I.. PREFIX=/usr/local/openresty/luajit DESTDIR=$OPENRESTY_BUILD_DIR/luajit-root
+gmake TARGET_STRIP=@: PREFIX=/usr/local/openresty/luajit
+gmake install TARGET_STRIP=@: PREFIX=/usr/local/openresty/luajit DESTDIR=$OPENRESTY_BUILD_DIR/luajit-root
 export LUAJIT_LIB='$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/lib'
 export LUAJIT_INC='$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/include/luajit-2.0'
 cd ..
@@ -1801,14 +1803,14 @@ Type the following commands to build and install:
 .PHONY: all install clean
 
 all:
-	cd $OPENRESTY_BUILD_DIR/LuaJIT-2.0.0-beta10 && $(MAKE) TARGET_STRIP=@: CFLAGS=-I.. PREFIX=/usr/local/openresty/luajit
+	cd $OPENRESTY_BUILD_DIR/LuaJIT-2.0.0-beta10 && $(MAKE) TARGET_STRIP=@: PREFIX=/usr/local/openresty/luajit
 	cd $OPENRESTY_BUILD_DIR/lua-cjson-1.0.3 && $(MAKE) DESTDIR=$(DESTDIR) LUA_INCLUDE_DIR=$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/include/luajit-2.0 LUA_LIB_DIR=/usr/local/openresty/lualib CC=gcc
 	cd $OPENRESTY_BUILD_DIR/lua-redis-parser-0.09 && $(MAKE) DESTDIR=$(DESTDIR) LUA_INCLUDE_DIR=$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/include/luajit-2.0 LUA_LIB_DIR=/usr/local/openresty/lualib CC=gcc
 	cd $OPENRESTY_BUILD_DIR/lua-rds-parser-0.05 && $(MAKE) DESTDIR=$(DESTDIR) LUA_INCLUDE_DIR=$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/include/luajit-2.0 LUA_LIB_DIR=/usr/local/openresty/lualib CC=gcc
 	cd $OPENRESTY_BUILD_DIR/nginx-1.0.15 && $(MAKE)
 
 install: all
-	cd $OPENRESTY_BUILD_DIR/LuaJIT-2.0.0-beta10 && $(MAKE) install TARGET_STRIP=@: CFLAGS=-I.. PREFIX=/usr/local/openresty/luajit DESTDIR=$(DESTDIR)
+	cd $OPENRESTY_BUILD_DIR/LuaJIT-2.0.0-beta10 && $(MAKE) install TARGET_STRIP=@: PREFIX=/usr/local/openresty/luajit DESTDIR=$(DESTDIR)
 	cd $OPENRESTY_BUILD_DIR/lua-cjson-1.0.3 && $(MAKE) install DESTDIR=$(DESTDIR) LUA_INCLUDE_DIR=$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/include/luajit-2.0 LUA_LIB_DIR=/usr/local/openresty/lualib CC=gcc
 	cd $OPENRESTY_BUILD_DIR/lua-redis-parser-0.09 && $(MAKE) install DESTDIR=$(DESTDIR) LUA_INCLUDE_DIR=$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/include/luajit-2.0 LUA_LIB_DIR=/usr/local/openresty/lualib CC=gcc
 	cd $OPENRESTY_BUILD_DIR/lua-rds-parser-0.05 && $(MAKE) install DESTDIR=$(DESTDIR) LUA_INCLUDE_DIR=$OPENRESTY_BUILD_DIR/luajit-root/usr/local/openresty/luajit/include/luajit-2.0 LUA_LIB_DIR=/usr/local/openresty/lualib CC=gcc