On 12 March 2012 09:00, Jonathan Wakely wrote: > On 12 March 2012 08:25, Moran Smith wrote: >> /worktable/gcc-4.3.3/configure --program-suffix=-4.3.3 >> --enable-version-specific-runtime-libs --enable-languages=c,c++ >> --disable-nls --with-mpfr=/usr/local >> --with-mpfr-include=/usr/local/include --with-mpfr-lib=/usr/local/lib > > You don't need to use --with-mpfr-include and --with-mpfr-lib here, > because the --with-mpfr option is present and so the include dir will > automatically be /usr/local/include and the lib dir will automatically > by /usr/local/lib > The most likely explanation is that you need to run ldconfig or use > some other method such as setting LD_LIBRARY_PATH to ensure the > runtime linker can find the libraries in /usr/local/lib Both of these points are documented at http://gcc.gnu.org/install/configure.html under the --with-mpfr option: "Likewise the --with-mpfr=mpfrinstalldir option is shorthand for --with-mpfr-lib=mpfrinstalldir/lib and --with-mpfr-include=mpfrinstalldir/include" "You might also need to ensure the shared libraries can be found by the dynamic linker when building and using GCC, for example by setting the runtime shared library path variable (LD_LIBRARY_PATH on GNU/Linux and Solaris systems). " Please do read the documentation for the options you're using, especially when the build doesn't work as you expect.
