安裝pnp4nagios後，調試時出現了，“No Unicode properties support“的錯誤提示，看了官方網站上的提示，解決方法如下：
下載
wget ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/pcre-6.6-2.el5_1.7.src.rpm
安裝
rpm -ivh pcre-6.6-2.el5_1.7.src.rpm
（warning 一堆，不用管他）
修改配置文件。
vi /usr/src/redhat/SPECS/pcre.spec
修改
%configure –enable-utf8
爲
%configure –enable-utf8 –enable-unicode-properties
安裝rpm-build
yum install rpm-build
重新編譯
rpmbuild -ba /usr/src/redhat/SPECS/pcre.spec
安裝：
rpm -Uvh /usr/src/redhat/RPMS/i386/pcre-6.6-2.7.XX.rpm
檢測：
檢測：
# pcretest -C
PCRE version 6.6 06-Feb-2006
Compiled with
UTF-8 support
Unicode properties support
Newline character is LF
Internal link size = 2
POSIX malloc threshold = 10
Default match limit = 10000000
Default recursion depth limit = 10000000
Match recursion uses stack
Compiled with
UTF-8 support
Unicode properties support
Newline character is LF
Internal link size = 2
POSIX malloc threshold = 10
Default match limit = 10000000
Default recursion depth limit = 10000000
Match recursion uses stack
完成