最近需要升級原有服務器的nginx加載邏輯，新的lua腳本需要解析一個遠程返回的json格式的結果，原有的luajit並沒有帶cjson庫，需要自己手動安裝一下。
基本參考博客luajit安裝cjson。
cjson下載地址：http://www.kyne.com.au/~mark/software/lua-cjson.php
下載文件 lua-cjson-2.1.0.tar.gz
運行命令
tar -zxvf lua-cjson-2.1.0.tar.gz cd lua-cjson-2.1.0
make
make命令在使用默認配置下報錯
lua_cjson.c:43:17: error: lua.h: No such file or directory lua_cjson.c:44:21: error: lauxlib.h: No such file or directory lua_cjson.c:192: error: expected ‘)’ before ‘*’ token lua_cjson.c:206: error: expected ‘)’ before ‘*’ token lua_cjson.c:218: error: expected ‘)’ before ‘*’ token lua_cjson.c:237: error: expected ‘)’ before ‘*’ token lua_cjson.c:266: error: expected ‘)’ before ‘*’ token lua_cjson.c:279: error: expected ‘)’ before ‘*’ token lua_cjson.c:288: error: expected ‘)’ before ‘*’ token lua_cjson.c:296: error: expected ‘)’ before ‘*’ token lua_cjson.c:304: error: expected ‘)’ before ‘*’ token lua_cjson.c:336: error: expected ‘)’ before ‘*’ token
根據上述博客和之前安裝luasocket的經驗，還是沒有找到lua源碼進行編譯報的錯。
find 一下lua.h這個文件，發現位於/opt/luajit-2.0.0/include/luajit-2.0路徑下。
修改Makefile文件，修改default配置為
## multi-threaded application. Requries _pthreads_. ##### Build defaults ##### LUA_VERSION = 5.1 TARGET = cjson.so PREFIX = /opt/luajit-2.0.0 #CFLAGS = -g -Wall -pedantic -fno-inline CFLAGS = -O3 -Wall -pedantic -DNDEBUG CJSON_CFLAGS = -fpic CJSON_LDFLAGS = -shared #LUA_INCLUDE_DIR = $(PREFIX)/include LUA_INCLUDE_DIR = /opt/luajit-2.0.0/include/luajit-2.0 LUA_CMODULE_DIR = $(PREFIX)/lib/lua/$(LUA_VERSION) LUA_MODULE_DIR = $(PREFIX)/share/lua/$(LUA_VERSION) LUA_BIN_DIR = $(PREFIX)/bin
主要是修改了LUA_INCLUDE_DIR用於安裝cjson；修改了PREFIX變量用來改變編譯結果文件輸出的路徑
保存修改，執行命令
make && make install cc -c -O3 -Wall -pedantic -DNDEBUG -I/opt/luajit-2.0.0/include/luajit-2.0 -fpic -o lua_cjson.o lua_cjson.c cc -c -O3 -Wall -pedantic -DNDEBUG -I/opt/luajit-2.0.0/include/luajit-2.0 -fpic -o strbuf.o strbuf.c cc -c -O3 -Wall -pedantic -DNDEBUG -I/opt/luajit-2.0.0/include/luajit-2.0 -fpic -o fpconv.o fpconv.c cc -shared -o cjson.so lua_cjson.o strbuf.o fpconv.o mkdir -p //opt/luajit-2.0.0/lib/lua/5.1 cp cjson.so //opt/luajit-2.0.0/lib/lua/5.1 chmod 755 //opt/luajit-2.0.0/lib/lua/5.1/cjson.so
輸出結果顯示正確，安裝成功