Rishabh Dave wrote:

>   ./configure: line 7227: syntax error near unexpected token `0.9.0'
>   ./configure: line 7227: `PKG_PROG_PKG_CONFIG(0.9.0)'

My guess is your version of pkg-config is too old.

Also, it looks like your output is not from a fresh build. Maybe there is 
leftover from a previous build that messes things up.

What platform are you building on? If you build again from a fresh git checkout, 
what is the output of the following shell commands? I'm attaching my output, on 
Ubuntu 16.04.1 x86-64.

pkg-config --version
./bootstrap
cat m4/pkg.m4
./configure
cat config.log