使用 ncurses 时对 `stdscr' 的未定义引用

问题描述

我正在尝试在 Ubuntu 11.10 中编译我的代码并出现这些错误等等.到目前为止，通过谷歌搜索，我认为这是一个链接错误.具体来说，有一些建议可以确保您拥有正确的标题并链接 -lncurses 库.我已经这样做了.我仍然收到此错误.我还读到可能我应该安装 libncurses，但我已经安装了它.

I am trying to compile my code in Ubuntu 11.10 and getting these errors and more.So far by googling it I think it is a linking error. Specifically, there have been suggestions to make sure you have the right headers and link the -lncurses library. I have already done that. I'm still getting this error. I also read that may be i should install the libncurses, but I already have it installed.

My MakeFile:
CPP           = g++
CPPFLAGS      = -c -Wall -g
LINK          = g++
LDFLAGS_LINUX = -lpthread -lncurses
LDFLAGS       = $(LDFLAGS_LINUX)
RM            = rm


.SUFFIXES:
.SUFFIXES: .o .cpp

.cpp.o:
    $(CPP) $(CPPFLAGS) $*.cpp -o $(SRC_DIR)$*.o

all: skygrid

skygrid: skygrid.o commServer.o pose.o robot.o
    $(LINK) $(LDFLAGS) -o $@ $^

clean:
    $(RM) -rf *.o skygrid

skygrid.o:  skygrid.cpp definitions.h commServer.h pose.h robot.h
commServer.o:   commServer.cpp commServer.h
pose.o:     pose.cpp pose.h
robot.o:    robot.cpp robot.h pose.h

我的错误:

/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1094: undefined reference to `stdscr'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1094: undefined reference to `stdscr'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1094: undefined reference to `stdscr'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1094: undefined reference to `stdscr'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1104: undefined reference to `werase'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1106: undefined reference to `wprintw'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1107: undefined reference to `wprintw'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1109: undefined reference to `wprintw'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1111: undefined reference to `stdscr'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1111: undefined reference to `wgetch'
/home/fari/Desktop/FarahSkygrid/skygrid/src/skygrid.cpp:1116: undefined reference to `wtouchln'

推荐答案

我在 Centos 6.2 上的 ncurses 程序中遇到了这个问题.事实证明，ncurses 有时被分成两个库，ncurses 和 tinfo.就我而言，stdscr 存在于 libtinfo 中，而不存在于 libncurses 中，因此将 -ltinfo 添加到链接行，在 -lncurses<之后/code>，解决问题.