On Mon, 15 Feb 2016, Salman Khan wrote: > $ nm /usr/local/lib/libgretl-1.0.so.16.0.0 | grep libgretl_init > 0000000000146040 T libgretl_init
That looks OK. > $ cc -vUsing built-in specs. [...] Nothing apparently untoward there. > $ ld -VGNU ld (GNU Binutils for Ubuntu) 2.24 [...] Nor there. So at this point the failure of your compile is a mystery. Could you try bypassing "make" by running the following shell command (in the gretl durectory that contains simple_client.c): cc -g -O2 -Wall -I/usr/local/include \ -I/usr/include/libxml2 \ -I/usr/include/glib-2.0 \ -I/usr/lib/x86_64-linux-gnu/glib-2.0/include \ -DPREFIX=\"/usr/local\" -fopenmp \ simple_client.c -o simple_client -L/usr/local/lib \ -lgretl-1.0 -lm -lxml2 -lfftw3 -lglib-2.0 Thanks. Allin Cottrell