On Mon, Mar 31, 2014 at 3:50 PM, Tony Zhou <tonytzhou at gmail.com> wrote: > Hi Nikos, > Thanks for the correction. I didn't use the correct syntax previously; the > correct form in gnutls3.pc was > LIBGNUTLS_LIBS="-L/usr/local/lib/gnutls3 -lgnutls" > LIBGNUTLS_CFLAGS="-I/usr/local/include/gnutls3" If that's the correct cflag, then /usr/local/include/gnutls3 should contain a directory named 'gnutls' under which are the header files. If not you'll need to create it (or make it a link to '.'). regards, Nikos