一般情况下，在nagios被监控端安装nrpe和nagios-plugins的工作相当的简单重复。不过这次碰上一个诡异问题。
设备是RedHat AS4，在./configure时，报出如下错误：
checking for C compiler default output file name… a.out
checking whether the C compiler works… configure: error: cannot run C compiled programs.
If you meant to cross compile, use `–host’.
See `config.log’ for more details.
dmesg信息输出如下：
a.out[4272]: segfault at 00000000bffff770 rip 0000000000400456 rsp 00000000bffff770 error 4
起先以为是内存问题，检查boot.log没问题；然后又yum reinstall了gcc，问题依旧。
在config.log中慢慢翻，赫然看到如下一段：
configure:1782: checking for C compiler version
configure:1785: gcc –version </dev/null >&5
gcc32 (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-47.3)
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
configure:1788: $? = 0
configure:1790: gcc -v </dev/null >&5
Reading specs from /usr/lib/gcc-lib/x86_64-redhat-linux/3.2.3/specs
Configured with: ../configure –prefix=/usr –mandir=/usr/share/man –infodir=/usr/share/info –enable-shared –enable-threads=posix –disable-checking –with-system-zlib –enable-__cxa_atexit –enable-languages=c,c++ –disable-libgcj –host=x86_64-redhat-linux
Thread model: posix
gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-47.3)
configure:1793: $? = 0
configure:1795: gcc -V </dev/null >&5
gcc32: argument to `-V’ is missing
configure:1798: $? = 1
……
—————–
Output variables.
—————–
……
host=’x86_64-unknown-linux-gnu’
真相大白！因为./configure检查出来的hostname和gcc编译时的hostname不一致！
改用./configure –host=x86_64-redhat-linux，编译顺利通过~~~
