如何在Linux中正确安装gsl库? [英] How to CORRECTLY install gsl library in Linux?

问题描述

在安装GNU科学库(gsl)时遇到问题. 根据随附的文档，我将程序包放在桌面上，并执行了"./configure"、make"和"sudo make install".我检查了/usr/local/include目录，其中有一个新创建的"gsl"文件夹.但是，当我尝试使用该库提供的功能时，发生了未定义对'gsl_sf_beta_inc'的引用"错误.这是我的代码.

I got a problem while installing the GNU Scientific Library (gsl). I put the package on my desktop, and did "./configure", "make", and "sudo make install", according to the document included. I checked the /usr/local/include directory, there is a newly created "gsl" folder in there. But When I tried to use the functions provided by the library, the "undefined reference to 'gsl_sf_beta_inc'" error occurred. Here is my code.

#include <stdio.h>
#include <gsl/gsl_sf_gamma.h>

int main (void)
{
    double a = 20;
    double b = 1000;
    double x = 0.5;
    double result = gsl_sf_beta_inc(a, b, x);
    printf("%f/d", result);
    return 0;
}

我感觉到问题可能是由于我将软件包放在桌面上而导致的，所以"make"命令生成的二进制代码就在那儿，这是错误的. 所以，我的猜测正确吗?如果是的话，我应该放在哪里?如果不是，我该怎么办? 谢谢.

I sensed that the problem might be caused by the fact I put the package on the desktop, so the binary code generated by the "make" command goes there, which is wrong. So, is my guess correct? If it is, where should I put them? If it is not, what should I do? Thanks.

推荐答案

您需要链接库，并假定make install成功.

You need to link the library, assuming the make install was successful.

gsl的文档说，这应该有效
(请注意，要使gsl正常工作，必须使用两个必要的链接选项:"-lgsl -lgslcblas"):

The gsl's documentation says this should work
(note the two necessary linking options for gsl to work: "-lgsl -lgslcblas"):

gcc -I/usr/local/include -L/usr/local/lib main.c -o main -lgsl -lgslcblas -lm

也可以按照以下方式用替代的"cblas"代替gsl的cblas:

Alternative "cblas" instead of gsl's cblas is also possible as per: alternate cblas for gsl

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