boost iostreams库存在，但我无法链接它 [英] boost iostreams library exist but i am unable link it

问题描述

我使用boost-iostreams库，这里是我的问题，我试图链接我的程序与图书馆：

  ld -I / usr / include / boost / iostreams / -I / usr / include / boost / iostreams / device / -L / usr / lib / libboost_iostreams.so -lboost-iostreams fd.o -ox 
  

结果是：

  ld：找不到-lboost-iostreams 
  

当我尝试明确写入时：

  ld -I / usr / include / boost / iostreams / -I / usr / include / boost / iostreams / device / --library /usr/lib/libboost_iostreams.so -lboost-iostreams fd.o -ox 
  

它告诉我图书馆不存在：

  ld：找不到-l / usr / lib / libboost_iostreams.so 
 ld：找不到-lboost-iostreams 
  
 
 
 
但它有：
  $ ls  - l / usr / lib / libboost_iostreams * 
 -rw-r  -  r-- 1 root root 204682 feb 4 05:28 /usr/lib/libboost_iostreams.a 
 lrwxrwxrwx 1 root root 20 feb 4 05 ：28 /usr/lib/libboost_iostreams-mt.a  - > libboost_iostreams.a 
 lrwxrwxrwx 1 root root 28 feb 4 05:28 /usr/lib/libboost_iostreams-mt.so  - > libboost_iostreams.so.1.49.0 
 lrwxrwxrwx 1 root root 28 feb 4 05:28 /usr/lib/libboost_iostreams.so  - > libboost_iostreams.so.1.49.0 
 -rw-r  -  r-- 1 root root 94280 feb 4 05:28 /usr/lib/libboost_iostreams.so.1.49.0 
  
关于我：
 
 
 
 
 
操作系统：Debian 7 Wheezy 
 
 
 prog。 lang：c ++ 
 
 
编译器：g ++（Debian 4.7.2-5）4.7.2 
 
 
链接器：GNU ld（GNU Binutils for Debian） 2.22 
 
 
 boost库版本：1.49（来自debian repo）
 
 
 
 
 
 p> 
 
 
  EDIT： 
 
 
 
正确的选项应为 -lboost_iostreams ，不是 -lboost-iostreams  
 
 
 
  EDIT2： 
 
 
 
编辑后我的命令是：
  ld fd.o  - I / usr / include / boost / iostreams / -I / usr / include / boost / iostreams / device / -ox $（LIB_PATH）-lboost_iostreams 
  
其中libpath是以下之一：
  LIB_PATH = 
 LIB_PATH = L / usr / lib / 
 LIB_PATH = / usr / lib / libboost_iostreams.so 
 LIB_PATH = / usr / lib / libboost_iostreams.a 
  
但结果仍然是：
  ld：warning：找不到条目符号_start;默认为000000000804cc10 
 fd.o：在函数`__static_initialization_and_destruction_0（int，int）'中：
 fd.cpp :( .text + 0xd6）：未定义的引用`__dso_handle'
 ld：x ：隐藏符号`__dso_handle'未定义
 ld：最终链接失败：错误值
 make：*** [x]错误1 
   ld ，而是调用 $ d $> 
 
解决方案
 code> gcc 或 g ++ 。这可能在链接时添加正确的搜索路径。
 
 
 
如果明确链接，则不能包含-l标志。只需将 /usr/lib/libboost_iostreams.a 或 /usr/lib/libboost_iostreams.so 添加到文件列表
 
 
 
  -l <​​/ code>标志添加 lib 前缀和 .so 或 .a 后缀。
 
I know that the re plenty of similar questions, but mine is litle bit different and non them helped me.

I am using boost-iostreams library and here is my problem, i tried to link my program with libraries:
ld -I/usr/include/boost/iostreams/ -I/usr/include/boost/iostreams/device/  -L/usr/lib/libboost_iostreams.so -lboost-iostreams fd.o -o x 
And the result was:
ld: cannot find -lboost-iostreams
When i tried to write it explicitly:
ld -I/usr/include/boost/iostreams/ -I/usr/include/boost/iostreams/device/  --library /usr/lib/libboost_iostreams.so -lboost-iostreams fd.o -o x
It told me that the library dont exist:
ld: cannot find -l/usr/lib/libboost_iostreams.so
ld: cannot find -lboost-iostreams
But it does:
$ ls -l /usr/lib/libboost_iostreams*
-rw-r--r-- 1 root root 204682 feb  4 05:28 /usr/lib/libboost_iostreams.a
lrwxrwxrwx 1 root root     20 feb  4 05:28 /usr/lib/libboost_iostreams-mt.a ->         libboost_iostreams.a
lrwxrwxrwx 1 root root     28 feb  4 05:28 /usr/lib/libboost_iostreams-mt.so ->  libboost_iostreams.so.1.49.0
lrwxrwxrwx 1 root root     28 feb  4 05:28 /usr/lib/libboost_iostreams.so -> libboost_iostreams.so.1.49.0
-rw-r--r-- 1 root root  94280 feb  4 05:28 /usr/lib/libboost_iostreams.so.1.49.0
About me:


OS: Debian 7 Wheezy 
prog. lang.: c++
compiler: g++ (Debian 4.7.2-5) 4.7.2
linker: GNU ld (GNU Binutils for Debian) 2.22
boost library ver.: 1.49 ( from debian repo )


Thanks!

EDIT:

The right option should be -lboost_iostreams, not -lboost-iostreams

EDIT2:

After edit my command was:
ld fd.o -I/usr/include/boost/iostreams/ -I/usr/include/boost/iostreams/device/ -o x $(LIB_PATH) -lboost_iostreams
Where libpath is ONE of following:
LIB_PATH=
LIB_PATH=-L/usr/lib/
LIB_PATH=/usr/lib/libboost_iostreams.so
LIB_PATH=/usr/lib/libboost_iostreams.a
but the result is still:
ld: warning: cannot find entry symbol _start; defaulting to 000000000804cc10
fd.o: In function `__static_initialization_and_destruction_0(int, int)':
fd.cpp:(.text+0xd6): undefined reference to `__dso_handle'
ld: x: hidden symbol `__dso_handle' isn't defined
ld: final link failed: Bad value
make: *** [x] Error 1

解决方案
Generally speaking you do not call ld directly but rather call gcc or g++ instead. This might add the correct search paths when linking.

If you link explicitly, you must not include the -l flag. Just add /usr/lib/libboost_iostreams.a or /usr/lib/libboost_iostreams.so to the list of files that you are linking.

The -l flag add the lib prefix and the .so or .a suffix.

                        
这篇关于boost iostreams库存在，但我无法链接它的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！