Celia, To make it clear, the compile to include the GDBM libraries needs to be done by: % setenv GDBMLIB -lgdbm Set the LD_LIBRARY_PATH to include the path to the gdbm library. So if the library is in /gnu/lib/libgdbm.a then set % setenv LD_LIBRARY_PATH /gnu/lib:$LD_LIBRARY_PATH Also, find and put gdbm.h in the include dir of the distribution. ls ~ldm/ldm-5.0.8/include gdbm.h h_clnt.h ldmprint.h setenv.h fsStats.h fbits.h ldm.h md5.h timestamp.h inetutil.h lcm.h ldm4.h mkdirs_open.h alloc.h ulog.h pq.h ldm_xlen.h paths.h alrm.h ldmconfig.h atofeedt.h ldmclnt.h prod_class.h fdnb.h This is all done before running ./configure. Robb... =============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================