Sampath Koppole wrote: > checking for correct version of mpfr.h... yes > checking for any version of mpfr.h... no This is the problem: gfortran depends on MPFR. These two lines mean that you have the MPFR headers installed but that it can't link against the MPFR library. You may not have it installed correctly or it may be in a path that the linker isn't searching. You can find the actual link error in config.log if that helps you debug this. Good luck! Rup. ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________