checking for asm .symver support... yes checking for main in -libs... no checking for sqrt in -lm... yes checking for x86_64-pc-linux-gnu-pkg-config... /usr/bin/x86_64-pc-linux-gnu-pkg-config checking pkg-config is at least version 0.9.0... yes checking whether to build with libjpeg... configure: error: Unhandled value given to --with-jpeg / --without-jpeg: 'yes'