The following tips are encountered when installing quagga-0.99.22 under Centos 6.5
./configure--prefix=/usr/local/zebra--enable-vtysh--enable-user=root--enable-group=root--enable-vty-group=root
Checking build system Type ... X86_64-unknown-linux-gnu
Checking host system Type ... X86_64-unknown-linux-gnu
Checking target system Type ... X86_64-unknown-linux-gnu
Checking for a bsd-compatible install .../usr/bin/install-c
Checking whether build environment is sane ... yes
Checking for a thread-safe mkdir-p .../bin/mkdir-p
Checking for gawk ... gawk
..................................
Checking for tputs in-ltermcap ... yes
Checking for main in-lreadline ... no
Configure:error:vtysh needs Libreadline but is not found and usable on your system.
Workaround:
Yum Install-y readline-devel
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Cent OS 6.5 Installation quagga error Vtysh needs Libreadline