redhat6编译log4cxx

redhat6版本编译不少软件都会语法检查太严，致使编译通不过。log4cxx就是其中之一，不过都是头文件缺失引发的错误，补充头文件便可，我把我安装时碰到的问题写出来，但愿有人碰到相似的问题，不用走弯路，高手就飘过吧。

安装log4cxx以前需检查以下包是否安装，

下载当前最新版本

wget http://mirror.bjtu.edu.cn/apache/logging/log4cxx/0.10.0/apache-log4cxx-0.10.0.tar.gz

解压安装

./configure --prefix=/usr/server/log4xx

make

很快就能够看到报错，如图

'memmove' was not declared in this scope

缺乏string.h这个头文件，若是是低版本会自动补上来，修改src/main/include/log4cxx/helpers/inputstream.h添加以下

继续make,不须要make clean之类的操做，再次报错，内容以下。

'memcpy' was not declared in this scope

一样，修改src/main/include/log4cxx/helpers/socketoutputstream.h添加#include<string.h>头文件，不上图了

继续make,应该到以下报错

console.cpp:58: error: ‘puts’ was not declared in this scope
console.cpp:63: error: ‘strcmp’ was not declared in this scope
console.cpp:66: error: ‘stderr’ was not declared in this scope
console.cpp:66: error: ‘stdout’ was not declared in this scope
console.cpp:66: error: ‘fputs’ was not declared in this scope
console.cpp:69: error: ‘stderr’ was not declared in this scope
console.cpp:69: error: ‘stdout’ was not declared in this scope
console.cpp:102: error: ‘stderr’ was not declared in this scope
console.cpp:102: error: ‘stdout’ was not declared in this scope
console.cpp:104: error: ‘stderr’ was not declared in this scope
console.cpp:104: error: ‘stdout’ was not declared in this scope
console.cpp:107: error: ‘stderr’ was not declared in this scope
console.cpp:107: error: ‘fputs’ was not declared in this scope
console.cpp:110: error: ‘fflush’ was not declared in this scope

修改src/examples/cpp/console.cpp，添加二行

若是不添加string.h后面还会有报错（error: ‘strcmp’ was not declared in this scope）

修改完成后，再次make，就没有问题了，最后再执行make install，就编译安装成功了。