Lua-5.2.2

lua-5.2.2發布已有一段時間了，最近在redhat Linux平臺編譯時報錯。這里給出解決方案，或許對某人會有幫助。

編譯報錯，如下：

lua@home> make linux  ... gcc -O2 -Wall -DLUA_COMPAT_ALL -DLUA_USE_LINUX    -c -o lstrlib.o lstrlib.c gcc -O2 -Wall -DLUA_COMPAT_ALL -DLUA_USE_LINUX    -c -o ltablib.o ltablib.c gcc -O2 -Wall -DLUA_COMPAT_ALL -DLUA_USE_LINUX    -c -o loadlib.o loadlib.c gcc -O2 -Wall -DLUA_COMPAT_ALL -DLUA_USE_LINUX    -c -o linit.o linit.c ar rcu liblua.a lapi.o lcode.o lctype.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o lobject.o         lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o lundump.o lvm.o lzio.o lauxlib.o lbaselib.o lbitlib.o     lcorolib.o ldblib.o liolib.o lmathlib.o loslib.o lstrlib.o ltablib.o loadlib.o linit.o  ranlib liblua.a gcc -O2 -Wall -DLUA_COMPAT_ALL -DLUA_USE_LINUX    -c -o lua.o lua.c gcc -o lua   lua.o liblua.a -lm -Wl,-E -ldl -lreadline  /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `PC' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `tgetflag' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `tgetent' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `UP' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `tputs' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `tgoto' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `tgetnum' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `BC' /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so: undefined reference to `tgetstr' collect2: ld returned 1 exit status make[1]: *** [lua] Error 1 make[1]: Leaving directory `/home/lua/lua-5.2.2/src' make: *** [linux] Error 2

由于lua編譯依賴readline庫，而其依賴ncurses庫，但沒有指定，所以出現“未定義的符合引用”錯誤。需要修改${LUA_DIR}/src/Makefile中linux編譯target，在SYSLIBS變量中追加‘-lncurses’選項即可。修改后，如下：

  1. linux:
  2.         $(MAKE) $(ALL) SYSCFLAGS="-DLUA_USE_LINUX" SYSLIBS="-Wl,-E -ldl -lreadline -lncurses"
  3.