Jerin Joy wrote: > configure: error: Building GCC requires GMP 4.1+ and MPFR 2.3.0+. > Try the --with-gmp and/or --with-mpfr options to specify their locations. Those options take the location where you installed the libraries, i.e. the --prefix that you gave when configuring them. > I don't know why it doesn't pick up the correct files from the path. The paths below look like the plain source dirs of an unpacked tarball. These options point to a built and installed copy of the libraries, not a bare source dir. > [jj155244@ gcc-4.3.0]$ ls -l /import/dtg-data20/jj155244/tools/mpfr-2.3.1 |less > total 7587 > -rw-r----- 1 jj155244 wheel 755 Dec 31 2007 AUTHORS > -rw-r----- 1 jj155244 wheel 2915 Dec 31 2007 BUGS > -rw-r----- 1 jj155244 wheel 18013 Dec 31 2007 COPYING > -rw-r----- 1 jj155244 wheel 26440 Dec 31 2007 COPYING.LIB > > [jj155244@ gcc-4.3.0]$ ls -l /import/dtg-data20/jj155244/tools/gmp-4.2.3 > total 4198 > -rw-r----- 1 jj155244 wheel 843 Mar 22 2006 AUTHORS > -rw-r----- 1 jj155244 wheel 35147 Aug 30 2007 COPYING > -rw-r----- 1 jj155244 wheel 7639 Aug 30 2007 COPYING.LIB > -rw-r----- 1 jj155244 wheel 709734 Aug 2 13:54 ChangeLog It is also possible to have gcc bootstrap these libraries with itself, in the usual manner of a combined tree. Brian