Hello, I just checkoed out the source and try to compile it on my ubuntu 13.10 64bit box. The problem seems to be the MPI. configure works ok, ./configure --without-mpi but when I call make, the compilation fails with make[1]: Leaving directory `/home/vonkad/dev/gretl/lib' make -C cli make[1]: Entering directory `/home/vonkad/dev/gretl/cli' mkdir .deps gcc -c -g -O2 -I.. -I.. -I../lib/src -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DLOCALEDIR=\"/usr/local/share/locale\" -DHAVE_CONFIG_H gretlcli.c gcc -g -O2 -I.. -I.. -I../lib/src -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DLOCALEDIR=\"/usr/local/share/locale\" -DHAVE_CONFIG_H -MM gretlcli.c > .deps/gretlcli.d gcc -c -g -O2 -I.. -I.. -I../lib/src -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DLOCALEDIR=\"/usr/local/share/locale\" -DHAVE_CONFIG_H complete.c gcc -g -O2 -I.. -I.. -I../lib/src -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DLOCALEDIR=\"/usr/local/share/locale\" -DHAVE_CONFIG_H -MM complete.c > .deps/complete.d ../libtool --mode=link gcc -mavx -Winline -o gretlcli gretlcli.o complete.o \ ../lib/libgretl-1.0.la -lreadline -lncurses libtool: link: gcc -mavx -Winline -o .libs/gretlcli gretlcli.o complete.o ../lib/.libs/libgretl-1.0.so -llapack -lblas -lgfortran -lm -ldl -lz -lxml2 -lglib-2.0 -lgmp -lfftw3 /usr/lib/x86_64-linux-gnu/libcurl-gnutls.so -lreadline -lncurses -pthread ../lib/.libs/libgretl-1.0.so: undefined reference to `set_mpi_variant' collect2: error: ld returned 1 exit status make[1]: *** [gretlcli] Error 1 make[1]: Leaving directory `/home/vonkad/dev/gretl/cli' make: *** [cli] Error 2 a similar problem appears when I call ./configure without hte parameter, but the undefined referece is to another object, not set_mpi_variant. I have installed the mpi-default-dev package. Thanks for any help, David Vonka -- David Voňka Programátor mobil: +420 608 916 031