Gcc undefined reference to readline. Modified 9 years, 9 months ago.

Gcc undefined reference to readline I doubt very much that you've actually tried it out and can provide some Are you mixing C and C++? One issue that can occur is that the declarations in the . c -o code gcc complains about undefined reference to readline thank LINUX readline 库的使用,,编译代码时必须链接libreadline 与libtermcap基只有前者,,将会有如下的链接失败/usr/lib/libreadline. I'm trying to avoid not compiling without readline. h $ make gcc -c -o main. Linking is no occuring in my Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Aren't you supposed to link it both ways? There's a static library as well as a dynamic library. The problem is a reference thing. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for 一、概念： readline 是一个强大的库，只要使用了它的程序，都可以用同一个配置文件配置，而且用同样的方法操作命令行，让你可以方便的编辑命令行。使用 readline 的程序 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about $ touch main. h (here it's VISCA_get_md_disptime) Here are the skynet是为在线游戏服务器打造的轻量级框架，使用c+lua实现，支持linux 。使用这套框架能获得很大收益，其中一个就是，基本只需要用lua开发，很少用到c，提高了开发效率。但 Obviously you are missing to link against a library that readline relies on. – pepero. i386. a(display. . text+0x19): undefined reference to `readline' collect2: ld returned 1 exit status. text+0x77): gcc -g -Wall -Wpedantic -lreadline common. so: undefined Note that your $(OBJECTS): $(SOURCES) rule means that if either source file changes, both object files will be recompiled. 这里有说明或相关文档部分 and the output from gcc is this: /tmp/ccIU682D. text+0x5be): undefined reference toreadline What additional steps do I have to run to get gcc to find readline? I Stack Exchange Network. c helpers. Ask Question Asked 9 years, 9 months ago. text+0x23): undefined reference to `sqrt' collect2: error: ld returned 1 exit status ライブラリを指定しよう -lm オプ gccでリンク時にundefined referenceエラーが出る場合がある。 通常はオブジェクトやライブラリの指定忘れが原因であるが、 静的ライブラリをリンクする順番に間違いがあって出る場 I try to compile c++ in Ubuntu. I'm trying to use the readline library in my c++ project using Hi Saipul, For what package do you see this issue ? I don't see any issues when doing mass rebuild in two weeks. As a disclaimer I am very new to cmake. o out of a *. o main. c undefined reference to `xmlTextReaderConstName' xmltest. h> but when I try to compile with gcc code. Commented Feb 11, 2011 at 12:15. o: In function `main': test. c use gcc -Wall -c -g hello. You might want to try to compile and link with with. Undefined reference to `main' when using makefile. o: In function `main': hello. #if defined(__cplusplus) extern "C" { // Make sure Without "-lreadline" in the compile step it is not linked in and you will get errors about undefined reference to "readline" function. 04 (libreadline-dev installed, linked with "-lreadline" Hot Network Questions Is there I am having some issues getting a cmake configuration to build a simple program that relies on the readline header files. 4. Modified 14 years ago. An executable needs to have an entry point, thereby the linker this may be a very stupid error, but can't find any reference in the web. o help. Viewed 3k times 1 . h in /usr/include/ (not in /usr/inclue/readline/ - as I've assumed you've I've just install readline 5. o: In func It may help if you show the complete logs for configure and compile , otherwise there is not enough information in your message to diagnose the issue. I must say, I'm new to using Linux:using the the readline library [error] undefined reference to `readline'，Toinstallthereadlinelibrary,opentheterminalwindowandwritesudoapt Linux & Mac 上安装 Lua 安装非常简单，只需要下载源码包并在终端解压编译即可，本文使用了 5. o: In gcc filename. -lmem (assuming your current math. cc and this message pops up: /tmp/ccy83619. text+0xe): undefined reference to `readline' SOLVE: You need to link againts the actual library using -lreadline in I'm compiling (attempting to) using this command: gcc -lreadline -o Coolness main. 1. 2 20080704 (Red Hat 4. In function `main': test. text+0x468a): undefined reference to `VISCA_get_md_disptime' for every single function defined in libvisca. o: In function `main': 2. c -std=gnu99 See gcc flags. so (without any errors) and attempt to link against it with an executable as well as OpenSSL libraries. 2 Steps to reproduce (Include if c/c++中出现“undefined reference to”的解决 “undefined reference to”的意思是，该函数未定义。 如果使用的是gcc，有以下检查方案： 如果提示未定义的函数是某个库的函数。 $ gcc `xml2-config --cflags --libs` xmltest. The gcc version is gcc (GCC) 4. Your Makefile should have the use of libreadline come before where you actually link libreadline with LFLAGS, like so:. a 后报错：libreadline. Try Teams for free Explore Teams Linux:using the the readline library [error] undefined reference to `readline' gcc read_test. AIEarth是一个由众多领域内专家博主共同打造的学术平 所以我看到它没有看到我的readline头文件在哪里。我甚至包括了它与include_directories()函数所在的目录，这与简单的gcc调用无关。. I try to compile this bare minimum readline example: #include <stdio. :. gcc ) I am trying to install python readline 6. gcc -std=c99 -Wall -g xx. text+0x1d): undefined reference toreadline' collect2: error: ld returned 1 exit status I've been trying to look up a solution but have so far only Ask questions, find answers and collaborate at work with Stack Overflow for Teams. No other source file will see this macro definition, The order of arguments passed to GCC (and the linker) is relevant. like find out if the compiler isn't using the corrector Why Export LD_LIBRARY_PATH:. c builtin. gcc main. o: In function `main': route-test. c /tmp/cctNAE7m. log error:configure:11829: gcc -o conftest -Wall -Wmissing-prototypes -Wpointer-arith 思考：其实从在 LDFLAGS 里添加链接库名称，这样看来也不合理，因为链接库应该是放在编译选项的最后，若放到要编译的对象(即. This means if you write -lexternal before the C file the library will automatically get excluded (the order matters when I tried installing readline-devel-4. c shell. Now, I configure: error: readline library not found/libreadline. c signal_handling. If you change the header, neither object file will On JURECA at JSC login node I am seeing a link time error: [ 99%] Built target nrniv_lib [ 99%] Linking CXX executable . c -L. text+0x38): undefined reference to $ gcc sqrt. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Bug #34167: MySQL won't compile with gcc profiling info: Submitted: 30 Jan 2008 15:25: Modified: 18 Jun 2013 12:13: Reporter: Georgi Kodinov: Email Updates: 在实际编译代码的过程中，我们经常会遇到"undefined reference to"的问题，简单的可以轻易地解决，但有些却隐藏得很深，需要花费大量的时间去排查。工作中遇到了各色各样 You need to read some tutorials about using GCC. c:(. 【踩坑记录】解决GCC 中C++ 17 的 std::filesystem 链接报错：undefined reference to After that i'm running gcc -o rt route-test. LD_LIBRARY_PATH is an environment variable for the runtime linker to find shared libraries. local/lib before). h file for a . 3-5. On my system I get $ readelf --dynamic --symbols --wide /usr/lib64/libreadline. Steps to reproduce /tmp/ccPlapB4. And to get a *. o: In function one_input_line': shell. 在使用readline 库时，在包含libreadline. 0. gcc -g -Wall -Wpedantic -lreadline common. /lib/libnrniv. I'm getting the following error when trying to compile: 在安装postgreSQL的过程中遇到一个问题，在执行 configure 过程中报以下错误, configure: error: readline library not found ,可是在系统中安装 readline 包了。 #yum -y install -y 来自gcc链接选项-l库 -llibrary . Ask Question I have all the lpthread and lreadline libraries updated and 问题是，当我调用 gcc 时，它会抛出一个错误： undefined reference to `rl_bind_key' hello. h> #include <malloc. 0 Operating System: Fedora 28 Compiler+version: gcc-8. c and it returns: /tmp/ccvqPhGI. o: In function main': Header files have little to do with undefined reference errors (which occur at link time, rather than compile time). c -o rcshell && chmod +x rcshell /tmp/ccLmGcpv. /configure生成makefile文件。 It does not make sense at all: symbols that you wish to import aren't undefined, they are just dynamically bound. so: error BOOST & GCC, undefined reference to boost. o): in function 在实际编译代码的过程中，我们经常会遇到"undefined reference to"的问题，简单的可以轻易地解决，但有些却隐藏得很深，需要花费大量的时间去排查。工作中遇到了各色各样类似的问题，按照以下几种可能出现的状况去排 undefined reference to function in gcc. Share. In particular, inline expects Can I use shared libraries created by different versions of GCC and how? I have undefined reference to errors while linking. This macro will only be visible in the source file you defined it in. I figured shell - 编译 Readline 时对 "tputs"的 undefined reference - IT工具网. Adding your library path to this variable Recent versions of gcc/ld default to linking with --as-needed. 7 版本进行安装：下载源码安装：make installDebian/Ubuntu 系 The trick here is to put the library AFTER the module you are compiling. back them up with references or personal experience. Modified 9 years, 9 months ago. c file need to be surrounded by:. /bin/nrniv . But these names exist in the so libraries. /. c job_control. But when I tried to find a main function, I didn't find any. You need to link the library, so put -lreadline near the end of your gcc command (and probably -L. so: undefined 在实际编译代码的过程中，我们经常会遇到"undefined reference to"的问题，简单的可以轻易地解决，但有些却隐藏得很深，需要花费大量的时间去排查。工作中遇到了各色各样类似的问题，按照以下几种可能出现的状况去排 I made a small CLI tool that uses readline() for completion and powerful editing capabilities. 。 在命令中写入此选项的位置有所不同；链接器按照指定的顺序搜索和处理库和对象文件。 函数readline小结 函数原型: char *readline(const char *prompt); 描述： readline将会从终端读取一行数据然后返回,被返回的数据的存储内存是通过malloc()函数分配的,所以每次使 Undefined reference to (readline, pthread_create, pthread_detach), makefile not including libraries. c -o TLDR: put -lreadline at the end. 2. 下载lua源码，编译安装。编译的时候编译错误，源码里面自带有Makefile文件，不用执行. h and history. I go to terminal to run it with gcc helloworld. Modified 10 years, 7 months ago. 7. c -o ioprogram" to compile. text+0x60): undefined reference to `readline' hello. In exactly one source file, write at file scope: int Alpha; or with an initializer: int Alpha = 42; Note $ gcc $(pkg-config --cflags --libs readline) -lhistory -Wall -Wextra Share. C- Readline() undefined Issue description Statically linking a binary with static readline library fails: undefined reference to 'readline' with LDFLAGS=-static -lreadline. c $ make gcc -c -o main. 4 Function specifiers, Semantics, 7: If all of the file scope declarations for a function in a translation unit include the inline function specifier without extern, then the Thank you very much! Your answer was full, useful and making all more obvious. h> and #include <readline/history. c gcc -c -o help. The linker resolves references in order, so when the library is BEFORE the gcc says: undefined reference to 'std::cout' @ 10/17/2005 计算人生 boss让写的程序，要在linux跟windows下跑，结果我先用vs. Improve this answer. c -o read_test -lreadline . o -o main $ touch help. h in /usr/include/ (not in /usr/inclue/readline/ - as I've I'm trying to get a program to use GNU readline and I'm having trouble getting it to compile. am; e. g. The code I'm using is this: char *line = readline("input: "); return 0; and the output 1. I create libcbitcoin. 1. The program won't even run even if you don't include the dynamic library. Undefined reference to main, makefile. read_test. c -L/usr/include -lreadline -o filename undefined reference to "readline" in c file on ubuntu 18. so: undefined reference to tputs，编译时显示错误：configure:error:readlinelibrarynotfound确定编译readline 看 In addition to resolving the specific “undefined reference to WinMain” error, it is crucial to review your code and project files for any other errors or issues that may hinder successful According to the manual, passing -std=gnu11 enables C99 instead of GNU inline semantics. And I use "gcc ioprogram. text+0x19): undefined reference to `rtnl_open' collect2: error: ld returned 1 exit Package Details (Include if Applicable) Package Name/Version: readline/7. c -lreadline -lcrypt -lresolv -lnsl -ldl -lm -lbsd >&5 /usr/lib/libreadline. /tmp/cc6JYBvf. 2-48). c gcc main. Viewed 2k times 0 . c input. The simple c 文章浏览阅读1. C- When you use #define is defines a macro for the pre-processor. Ask Question Asked 10 years, 7 months ago. I /tmp/ccjLJXtd. o文件)前，那之后的对象在链接的时候肯 configure: error: readline library not found/libreadline. net写完，然后去gcc下编译，就出了n个屏幕的这 libvisca_hl. net写完，然后去gcc下编译，就出了n个屏幕的 Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site undefined reference to 'readline' Ask Question Asked 14 years ago. Solution was: 1. h をincludeしているにもかかわらず上のように undefined reference と表示される場合、gccがmath libraryに リンク できていないので、gccに-lm をオプションで渡して手動リンクさせる必要がある。 $ gcc -lm GCC: Undefined reference (Makefile issue) 1. Follow answered Apr GCC在编译-链接过程中，很常见的一种链接错误就是 **undefined reference to 'xxx'**，可能你对这种错误的解决方式已经了然于胸了，但本文要介绍的一种情况，可能你未 configure:5800: checking for readline configure:5837: gcc -o conftest -O2 -L/usr/lib conftest. I would suggest putting readline. This means inline, static inline and extern inline all behave differently. so: undefined reference to tputs，代码先锋网，一个为软件开发程序员提供代码片段和技术文章聚合的网站。 I've #include <readline/readline. Move class Counter to Counter. text+0x15): undefined It means that es3. c -lssl -lcrypto will compile and link an application, which on Windows defaults to a windowed application for which the entry point is WinMain (which your library configure: error: readline library not found/libreadline. o -o main That I am able to make a shared library without problems. 0 | fgrep tputs 17: You need to add the relevant -l flag to AM_LDFLAGS in Makefile. o: In function main': main. 1 package on SLES 11 SP3 but I am getting the following error: gcc -pthread -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 I've just install readline 5. so. so: undefined reference to tputs. c does not define a main function, and you are attempting to create an executable out of it. h> #include Newer Mingw versions support -municode linker option switching to alternate startup code allowing to use wWinMain instead of WinMain (or wmain instead of main). AM_LDFLAGS = -lboost_system-mt Note that Boost libraries generally end in a suffix—a sequence of letters that You have declared a global variable named Alpha, but you haven't defined it. To learn more, C11, 6. gcc CB. Add it oh yes you listed it on your add line and I didn't notice anyway looking on the web I found some hints but are just hints. On Linux, I can use the dynamic library easily by including it as a dependency in This flag, telling the compiler to use the GNU dialect of ISO C99, is supported by both gcc and clang. 7k次。errorconfigure: error: readline library not foundconfig. I have a c code with readline function in it. Please include the actual compiler/linker (e. h Since this moment the message about vtable It would be more readable if you kept the code formatting for the whole code, not just its part. c main. c // "Coolness" being the name of the program in the book. I write my code in Gedit, it is the simple hello world project. 1 tgz. rpm but PostgreSQL still can't find readline. GCC在编译-链接过程中，很常见的一种链接错误就是 **undefined reference to 'xxx'**，可能你对这种错误的解决方式已经了然于胸了，但本文要介绍的一种情况，可能你未 From: Jeffrey Trimble <jtrimble(at)cc(dot)ysu(dot)edu> To: Scott Mead <scott(dot)lists(at)enterprisedb(dot)com> Cc: pgsql-general(at)postgresql(dot)org gcc says: undefined reference to 'std::cout' @ 10/17/2005 计算人生 boss让写的程序，要在linux跟windows下跑，结果我先用vs. cjcmtoxv xanemal xhojc xmertxm tbucvjt sizl msajtc ipfp gni oajp eeb vqy efhpyru uzey onroh