Hi, I get this error: fortran/arith.o: In function `gfc_mpfr_to_mpz(__mpz_struct*, __mpfr_struct*, locus*)': arith.c:(.text+0x1169): undefined reference to `mpfr_get_z_2exp' The system is running Scientific Linux 6.2 with the standard libmpfr package, mpfr-2.4.1-6.el6.x86_64, installed. Thereis no mpfr_get_z_2exp in /usr/lib64/libmpfr.so.1.2.0, although there is mpfr_get_z_exp in it. Is the prerequiste mpfr-2.4+ correct? Or do I need a later version the the mpfr library? Thanks, Ron -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ron Stubbs MS CS Senior Systems Programmer Research Computing Pratt School of Engineering 410 Teer Bldg. P.O. Box 90271 Duke University, Durham, N.C. 27708-0271 office: (919)660-5339 cell:(919)641-5689 fax: (919) 613-9156 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~