Code from nghttp2 library ( https://github.com/tatsuhiro-t/nghttp2)
Thanks for Tatsuhiro Tsujikawa for permission to use nghttp2 lib.

Update library from source

download (clone) last release of nghttp2
and in folder epan/nghttp2 copy following file

cp ../../../nghttp2/lib/nghttp2_buf.[ch] .
cp ../../../nghttp2/lib/nghttp2_hd*.[ch] .
cp ../../../nghttp2/lib/nghttp2_helper.[ch] .
cp ../../../nghttp2/lib/nghttp2_int.h .
cp ../../../nghttp2/lib/nghttp2_net.h .
cp ../../../nghttp2/lib/includes/nghttp2/nghttp2.h .
cp ../../../nghttp2/lib/includes/nghttp2/nghttp2ver.h .

Change path to nghttp2.h
find . -name "nghttp2*" -type f -exec sed -i 's/<nghttp2\/nghttp2.h>/<nghttp2.h>/g'  {} \;

Change path to nghttp2ver.h
find . -name "nghttp2*" -type f -exec sed -i 's/<nghttp2\/nghttp2ver.h>/"nghttp2ver.h"/g'  {} \;

Fix c++-compat error and documentation (struct => typedef) error

in nghttp2/nghttp2_helper.h remove check for CONFIG.H

in nghttp2/nghttp2.h

Add on the top
#include "config.h"