Mostafa - We would need to see the config.log file to really comment, but my first guess would be do you have gcc-4.8 installed? donald On Tue, Nov 28, 2017 at 10:55 AM, Mostafa Salari <msgm68@gmail.com> wrote:

Hi I tried to install FRR on my own ubuntu1704, with the following configuration: sudo ./configure LIBS="-L/usr/lib/ -lpthread -ldl -lpq" CC=gcc-4.8 --sysconfdir=/usr/local/myrouter --localstatedir=/usr/local/myrouter/state --enable-vtysh --disable-babel --enable-fpm --enable-group=rahyab --enable-user=rahyab --disable-doc but the following error raised with c compiler error (in config.log) gcc-4.8: error: unrecognized command line option '-qversion' gcc-4.8: fatal error: no input files I tried gcc-6 also!

How can i proceed :) Thanks

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