redhat6編譯log4cxx

redhat6版本編譯不少軟件都會語法檢查太嚴，致使編譯通不過。log4cxx就是其中之一，不過都是頭文件缺失引發的錯誤，補充頭文件便可，我把我安裝時碰到的問題寫出來，但願有人碰到相似的問題，不用走彎路，高手就飄過吧。

安裝log4cxx以前需檢查以下包是否安裝，

下載當前最新版本

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

解壓安裝

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

make

很快就能夠看到報錯，如圖

'memmove' was not declared in this scope

缺乏string.h這個頭文件，若是是低版本會自動補上來，修改src/main/include/log4cxx/helpers/inputstream.h添加以下

繼續make,不須要make clean之類的操做，再次報錯，內容以下。

'memcpy' was not declared in this scope

一樣，修改src/main/include/log4cxx/helpers/socketoutputstream.h添加#include<string.h>頭文件，不上圖了

繼續make,應該到以下報錯

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後面還會有報錯（error: ‘strcmp’ was not declared in this scope）

修改完成後，再次make，就沒有問題了，最後再執行make install，就編譯安裝成功了。