链接错误与Poco Net [英] Linking error with Poco Net

问题描述

我尝试建立

时会得到以下结果：

架构的未定义符号x86_64：
Poco :: Net :: SocketAddress :: SocketAddress（std :: __ 1 :: basic_string< char，std： ：__ 1 :: char_traits< char>，std :: __ 1 :: allocator< char>> const& unsigned short），引用自：
.....
ld：symbol ）未找到架构x86_64


现在这里是catch：我链接-lpocoFoundation -lPocoNet - lPocoUtil

我错过了什么？

（我应该说我正在Mac OS X 10.8.2

解决方案

我也有同样的问题， > 1.4.6。

我唯一需要做的就是再次编译Poco库（因为它是用C + +11支持）：

  ./ configure --config = Darwin64-gcc 
 make 
 sudo make安装
  

另一种方法是使用C ++ 11编译Poco库，它有点复杂。
首先我必须在Foundation中修改两个源文件：

Foundation / src / NumberParser.cpp： b
$ b

  127c127 
< return std :: sscanf（s.c_str（），％I64_FMTd％c，& value，& temp）== 1; 
 --- 
> return std :: sscanf（s.c_str（），％I64_FMTd％c，& value，& temp）== 1; 
 144c144 
< return std :: sscanf（s.c_str（），％I64_FMTu％c，& value，& temp） 
 --- 
> return std :: sscanf（s.c_str（），％I64_FMTu％c，& value，& temp） 
 161c161 
< return std :: sscanf（s.c_str（），％I64_FMTx％c，& value，& temp）== 1; 
 --- 
> return std :: sscanf（s.c_str（），％I64_FMTx％c，& value，& temp）== 1; 
  

Foundation / src / DirectoryWatcher.cpp：
$ b

  51a52 
> #include< unistd.h> 
  

我修改了 build / config / Darwin-clang p>

  55,56c55,56 
< CXXFLAGS = $（ARCHFLAGS）-Wall -Wno-sign-comparison 
< LINKFLAGS = $（ARCHFLAGS）
 --- 
> CXXFLAGS = $（ARCHFLAGS）-Wall -Wno-sign-compare -std = c ++ 11 -stdlib = libc ++ 
> LINKFLAGS = $（ARCHFLAGS）-stdlib = libc ++ 
 80c80 
< SYSLIBS = -ldl 
 --- 
> SYSLIBS = -ldl -lstdc ++ 
  

我只需要静态库，所以我只编译： p>

  ./ configure --static --omit = Data --config = Darwin64-clang --poquito -no-tests -no-示例-no-shared 
 make clean 
 make 
 sudo make install 
  

如果你还需要样本和测试，那么我想你应该做一个xcode项目并设置它或深入里面的makefiles ...
我希望这个帮助...

I am stuck trying to get some code to build using the POCO libraries.

I get the following when I try to build

Undefined symbols for architecture x86_64:
  "Poco::Net::SocketAddress::SocketAddress(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, unsigned short)", referenced from:
      .....
ld: symbol(s) not found for architecture x86_64

Now here is the catch: I am linking with -lPocoFoundation -lPocoNet -lPocoUtil

What am I missing?

(I should say that I am compiling with clang on Mac OS X 10.8.2

解决方案

I had the same problem and it worked fine for me what Leezi wrote. I'm using version 1.4.6.

The only thing what I had to do more is to compile the Poco library again (because it was compiled for clang with C++11 support):

./configure --config=Darwin64-gcc
make
sudo make install

The other way what you can do is to compile Poco library with C++11 support, but it's a little bit complicated. First I had to modify two source file in Foundation:

Foundation/src/NumberParser.cpp:

127c127
<   return std::sscanf(s.c_str(), "%"I64_FMT"d%c", &value, &temp) == 1;
---
>   return std::sscanf(s.c_str(), "%" I64_FMT "d%c", &value, &temp) == 1;
144c144
<   return std::sscanf(s.c_str(), "%"I64_FMT"u%c", &value, &temp) == 1;
---
>   return std::sscanf(s.c_str(), "%" I64_FMT "u%c", &value, &temp) == 1;
161c161
<   return std::sscanf(s.c_str(), "%"I64_FMT"x%c", &value, &temp) == 1;
---
>   return std::sscanf(s.c_str(), "%" I64_FMT "x%c", &value, &temp) == 1;

Foundation/src/DirectoryWatcher.cpp:

51a52
> #include <unistd.h>

I modified build/config/Darwin-clang file too:

55,56c55,56
< CXXFLAGS        = $(ARCHFLAGS) -Wall -Wno-sign-compare
< LINKFLAGS       = $(ARCHFLAGS)
---
> CXXFLAGS        = $(ARCHFLAGS) -Wall -Wno-sign-compare -std=c++11 -stdlib=libc++
> LINKFLAGS       = $(ARCHFLAGS) -stdlib=libc++
80c80
< SYSLIBS  = -ldl
---
> SYSLIBS  = -ldl -lstdc++

I needed only for static libraries, so I only compiled that:

./configure --static --omit=Data --config=Darwin64-clang --poquito -no-tests -no-samples -no-shared
make clean
make
sudo make install

If you need for samples and tests too, then I think you should make an xcode project and set up it or go deep inside the makefiles... I hope this help...

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