On Fri, 12 Aug 2011 20:23:50 +0000, mimocrocodil wrote: > I am trying to link my program with libpq: > > $ dmd main.d dbwork.d -ofmain -v -L-lpq The important statement: note: '_end' is defined in DSO /lib64/libcom_err.so.2 so try adding it to the linker command line so maybe: $ dmd main.d dbwork.d -ofmain -v -L-lpq -L-lcom_err