Install / build ganglia 3.2.0 64bit on / for RedHat 6.1

get the ganglia rpm source from ganglia

*some times you may need rpm-build....

yum install rpm-build

now you can see what you are missing.... in my case was:

rpmbuild --rebuild ganglia-3.2.0-1.src.rpm

so I install my missing stuff:

yum install gcc-c++ pcre-devel subversion libtool rrdtool-devel freetype-devel apr-devel libpng-devel libart_lgpl-devel python-devel expat-devel

missing libconfuse... so i got it from a mirror:
wget ftp://ftp.muug.mb.ca/mirror/fedora/epel/6/x86_64/libconfuse-2.6-3.el6.x86_64.rpm
wget ftp://ftp.muug.mb.ca/mirror/fedora/epel/6/x86_64/libconfuse-devel-2.6-3.el6.x86_64.rpm
rpm -i libconfuse-2.6-3.el6.x86_64.rpm
rpm -i libconfuse-devel-2.6-3.el6.x86_64.rpm

now we r ready to compile:
rpmbuild --rebuild ganglia-3.2.0-1.src.rpm
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lets install the web interface...

yum install php-devel
pecl install json