多重定义的链接错误

Question

我收到两种类型的链接错误。

一个是关于“多重定义的符号”，

另一个是关于“符号统计数据具有不同的大小”之类的问题，

我无法理解如何解决它们。 请你帮助我好吗 ？

[elxr] (error) symbol isalnum multiply defined in:
[elxr] (error) symbol isalpha multiply defined in:    
[elxr] (error) symbol isblank multiply defined in:
[elxr] (error) symbol iscntrl multiply defined in:
[elxr] (error) symbol isdigit multiply defined in:
[elxr] (error) symbol isgraph multiply defined in:
[elxr] (error) symbol islower multiply defined in:
[elxr] (error) symbol isprint multiply defined in:
[elxr] (error) symbol ispunct multiply defined in:    
[elxr] (error) symbol isspace multiply defined in:
[elxr] (error) symbol isupper multiply defined in:
[elxr] (error) symbol isxdigit multiply defined in:
[elxr] (error) symbol tolower multiply defined in:
[elxr] (error) symbol toupper multiply defined in:
[elxr] (error) symbol isascii multiply defined in:
[elxr] (error) symbol toascii multiply defined in:
[elxr] (error) symbol isalnum multiply defined in:    
[elxr] (error) symbol isalpha multiply defined in:
[elxr] (error) symbol isblank multiply defined in:    
[elxr] (error) symbol iscntrl multiply defined in:    
[elxr] (error) symbol isdigit multiply defined in:    
[elxr] (error) symbol isgraph multiply defined in:    
[elxr] (error) symbol islower multiply defined in:    
[elxr] (error) symbol isprint multiply defined in:
[elxr] (error) symbol ispunct multiply defined in:    
[elxr] (error) symbol isspace multiply defined in:    
[elxr] (error) symbol isupper multiply defined in:    
[elxr] (error) symbol isxdigit multiply defined in:
[elxr] (error) symbol tolower multiply defined in:    
[elxr] (error) symbol toupper multiply defined in:
[elxr] (error) symbol isascii multiply defined in:
[elxr] (error) symbol toascii multiply defined in:

objs\kernel\syslog.o
objs\kernel\cfdp_server.o

[elxr] (error) symbol isalnum multiply defined in:
[elxr] (error) symbol isalpha multiply defined in:
[elxr] (error) symbol isblank multiply defined in:
[elxr] (error) symbol iscntrl multiply defined in: 
[elxr] (error) symbol isdigit multiply defined in:

objs\kernel\syslog.o
objs\kernel\syslog_server.o

[elxr] (error) symbol isgraph multiply defined in:        
[elxr] (error) symbol islower multiply defined in:    
[elxr] (error) symbol isprint multiply defined in:    
[elxr] (error) symbol ispunct multiply defined in:    
[elxr] (error) symbol isspace multiply defined in:    
[elxr] (error) symbol isupper multiply defined in:    
[elxr] (error) symbol isxdigit multiply defined in:    
[elxr] (error) symbol tolower multiply defined in:
[elxr] (error) symbol toupper multiply defined in:    
[elxr] (error) symbol isascii multiply defined in:
[elxr] (error) symbol toascii multiply defined in:

objs\kernel\syslog.o
objs\kernel\syslog_server.o

[elxr] (warning) symbol stats has different sizes in:

objs\kernel\syslog.o
..\GHS\int507\bilge8260\libitcpip.a(v3main.o)

[elxr] (error) symbol isalnum multiply defined in:    
[elxr] (error) symbol isalpha multiply defined in:
[elxr] (error) symbol isblank multiply defined in:
[elxr] (error) symbol iscntrl multiply defined in:
[elxr] (error) symbol isdigit multiply defined in:    
[elxr] (error) symbol isgraph multiply defined in:
[elxr] (error) symbol islower multiply defined in:    
[elxr] (error) symbol isprint multiply defined in:    
[elxr] (error) symbol ispunct multiply defined in:    
[elxr] (error) symbol isspace multiply defined in:
[elxr] (error) symbol isupper multiply defined in:    
[elxr] (error) symbol isxdigit multiply defined in:    
[elxr] (error) symbol tolower multiply defined in:
[elxr] (error) symbol toupper multiply defined in:
[elxr] (error) symbol isascii multiply defined in:
[elxr] (error) symbol toascii multiply defined in:


objs\kernel\syslog.o
lib\pus\libpus.a(os_abstract.o)

[elxr] (warning) symbol stats has different sizes in:

..\GHS\int507\myBSP\libitcpip.a(v3main.o)
lib\pus\libpus.a(os_abstract.o)

[elxr] (warning) symbol stats has different sizes in:

..\GHS\int507\myBSP\libitcpip.a(v3main.o)
lib\pus\libpus.a(pus.o)
[elxr] (error) errors during processing
Error: build failed
Build failed (Fri Oct 14 17:27:31 2011)

Answer 1

我猜您使用两个不同的头文件，其中定义了以下符号。
符号统计数据的冲突具有不同的大小，也一定是由于同一问题造成的。

例如。如果模块 1 是基于 cplusplus 的并且包含 iostream.h，模块 2 是基于 C 的并且包含 stdio.h，并且如果我将模块 1 和模块 2 组合起来创建单个模块，则 __STDOUT、__STDIN、__STDERR 等问题会成倍增加定义的将会出现。我认为报告的问题是类似的。