Newbie: Missing libyang.

[burslem2017]

Hello,

New to FRR but getting a build issue.

I installed it FRR and YANG.

I built YANG and can see it on /usr/lib64:
lrwxrwxrwx. 1 root root 12 Oct 6 16:10 /usr/lib64/libyang.so -> libyang.so.2
lrwxrwxrwx. 1 root root 17 Oct 6 16:10 /usr/lib64/libyang.so.2 -> libyang.so.2.8.18
-rwxr-xr-x. 1 root root 3441584 Oct 7 08:19 /usr/lib64/libyang.so.2.8.18

However when configuring:
$ ./configure --prefix=/usr --localstatedir=/var/run/frr --sbindir=/usr/lib/frr --sysconfdir=/etc/frr --enable-pimd

configure: error: libyang (>= 2.0.0) was not found on your system.

No doubt I have done something wrong?

Any help would be appreciated.
Gary C

Built and installed frr:

[donaldsharp]

FRR needs to see that libyang is properly installed on the system. This is typically done by examining the packaging. In this case it is looking for what ever distribution you have setup's package config file

See this as an example: https://stackoverflow.com/questions/5001966/have-autoconf-manually-check-for-library-when-there-is-no-pc-file

[qlyoung]

It wants the pkg-config files, this is a recurring problem when building FRR. How to fix it varies depending on your system.

[arunsesh]

how do we use pkgconfig while compiling FRR ?

[mjstapp]

try: grep pkg-config configure, and/or in the m4/ directory

[ton31337]

What is your OS? We have our own deb/rpm for libyang.